Computer Drive User Manual

ManualsBrandsMaxtor ManualsComputer HardwareATLAS 10K III





Summary of content (284 pages)

PAGE 1
PAGE 2
PAGE 3
© 2002 Maxtor Corporation. All rights reserved. Printed in U.S.A. This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein – which will be incorporated in revised editions of the publication. Maxtor may make changes or improvements in the product(s) described in this publication at any time and without notice. UL/CSA/VDE/TUV UL standard 1954 recognition granted under File No. E78016 CSA standard C22.
PAGE 4
You can request Maxtor publications from your Maxtor Sales Representative or order them directly from Maxtor. Publication Number: 81-126196-01 Corporate Headquarters 510 Cottonwood Drive Milpitas, California 95035 Tel: 408-432-1700 Fax: 408-432-4510 Research and Development Center 333 South Street Shrewsbury, MA 01545 Tel: 1-800-2-MAXTOR Thank you for your interest in Maxtor hard disk drives.
PAGE 5
1.1 1.2 1.3 1.4 AUDIENCE ....................................................................................................................... MANUAL ORGANIZATION.......................................................................................... TERMINOLOGY AND CONVENTIONS ..................................................................... REFERENCES ........................................................................................................
PAGE 6
Table of Contents 3.9.3 Shock Clip ...............................................................................................................3-25 3.9.4 Mounting .................................................................................................................3-25 3.9.5 Ventilation ...............................................................................................................3-25 % # & 4.1 4.2 4.3 4.4 4.5 SPECIFICATION SUMMARY ........................
PAGE 7
Table of Contents 5.14 MODE SELECT (6) Command (15h)................................................................................ 5-41 5.14.1 Initiator-Changeable Mode Pages ............................................................................5-42 5.14.2 Mode Page Types ....................................................................................................5-43 5.14.3 Mode Parameter List ...............................................................................................
PAGE 8
Table of Contents 5.42 5.43 5.44 5.45 5.46 5.47 5.48 5.49 5.50 5.51 5.52 START STOP UNIT Command (1Bh) .......................................................................... SYNCHRONIZE CACHE Command (35h) .................................................................. TEST UNIT READY Command (00h) .......................................................................... VERIFY Command (2Fh) ...............................................................................................
PAGE 9
Table of Contents 6.18.1 DIFFSENS ..............................................................................................................6-10 6.18.2 DIFFSENS SWITCHING ......................................................................................6-10 6.18.3 DT AND ST CLOCKING .....................................................................................6-11 6.18.4 CYCLIC REDUNDANCY CHECKING .............................................................6-12 6.18.5 DOMAIN VALIDATION ....
PAGE 10
Table of Contents x Maxtor Atlas 10K III
PAGE 11
Figure 3-1 Figure 3-2 Figure 3-3 Figure 3-4 Figure 3-5 Figure 3-6 Figure 3-7 Figure 3-8 Figure 3-9 Figure 3-10 Figure 3-11 Figure 6-1 Dimensions for the Maxtor Atlas 10K III Hard Disk Drives ............................... 3-3 Drive Packing Assembly .................................................................................... 3-5 Jumper Locations on the 68-Pin Wide SCSI Drive PCB ................................... 3-7 Termination Power Circuitry .......................................
PAGE 12
Table of Contents Table 3-1 Table 3-2 Table 3-3 Table 3-4 Table 3-5 Table 3-6 Table 3-7 Table 3-8 Table 3-9 Table 4-1 Table 4-2 Table 4-3 Table 4-4 Table 4-5 Table 4-6 Table 4-7 Table 4-8 Table 4-9 Table 5-1 Table 5-2 Table 5-3 Table 5-4 Table 5-5 Table 5-6 Table 5-7 Table 5-8 Table 5-9 Table 5-10 Table 5-11 Table 5-12 Table 5-13 Table 5-14 Table 5-15 Table 5-16 Table 5-17 Table 5-18 Table 5-19 xi SCSI ID Selection on Option Connector (68-Pin SCSI Connector Drives) .
PAGE 13
Table of Contents Table 5-20 Table 5-21 Table 5-22 Table 5-23 Table 5-24 Table 5-25 Table 5-26 Table 5-27 Table 5-28 Table 5-29 Table 5-30 Table 5-31 Table 5-32 Table 5-33 Table 5-34 Table 5-35 Table 5-36 Table 5-37 Table 5-38 Table 5-39 Table 5-40 Table 5-41 Table 5-42 Table 5-43 Table 5-44 Table 5-45 Table 5-46 Table 5-47 Table 5-48 Table 5-49 Table 5-50 Table 5-51 Table 5-52 Table 5-53 Table 5-54 Table 5-55 Table 5-56 Table 5-57 Table 5-58 Table 5-59 Table 5-60 Table 5-61 Table 5-62 Table 5-63 Table 5-6
PAGE 14
Table of Contents Table 5-66 Table 5-67 Table 5-68 Table 5-69 Table 5-70 Table 5-71 Table 5-72 Table 5-73 Table 5-74 Table 5-75 Table 5-76 Table 5-77 Table 5-78 Table 5-79 Table 5-80 Table 5-81 Table 5-82 Table 5-83 Table 5-84 Table 5-85 Table 5-86 Table 5-87 Table 5-88 Table 5-89 Table 5-90 Table 5-91 Table 5-92 Table 5-93 Table 5-94 Table 5-95 Table 5-96 Table 5-97 Table 5-98 Table 5-99 Table 5-100 Table 5-101 Table 5-102 Table 5-103 Table 5-104 Table 5-105 Table 5-106 Table 5-107 Table 5-108 Table 5-109
PAGE 15
Table of Contents Table 5-111 Table 5-112 Table 5-113 Table 5-114 Table 5-115 Table 5-116 Table 5-117 Table 5-118 Table 5-119 Table 5-120 Table 5-121 Table 5-122 Table 5-123 Table 5-124 Table 5-125 Table 5-126 Table 5-127 Table 5-128 Table 5-129 Table 5-130 Table 5-131 Table 5-132 Table 5-133 Table 5-134 Table 5-135 Table 5-136 Table 5-137 Table 5-138 Table 5-139 Table 5-140 Table 5-141 Table 5-142 Table 5-143 Table 5-144 Table 5-145 Table 5-146 Table 5-147 Table 5-148 Table 5-149 Read Keys Parameters-Fie
PAGE 16
Table of Contents Table 5-150 Table 5-151 Table 5-152 Table 5-153 Table 5-154 Table 5-155 Table 5-156 Table 5-157 Table 5-158 Table 5-159 Table 5-160 Table 5-161 Table 5-162 Table 5-163 Table 5-164 Table 5-165 Table 5-166 Table 5-167 Table 5-168 Table 5-169 Table 5-170 Table 5-171 Table 5-172 Table 5-173 Table 5-174 Table 5-175 Table 5-176 Table 5-177 Table 5-178 Table 5-179 Table 5-180 Table 5-181 Table 5-182 Table 5-183 Table 5-184 Table 5-185 Table 5-186 Table 5-187 Table 5-188 xv READ SKIP MASK Comma
PAGE 17
Table of Contents Table 5-189 Table 5-190 Table 5-191 Table 5-192 Table 5-193 Table 5-194 Table 5-195 Table 5-196 Table 5-197 Table 5-198 Table 5-199 Table 5-200 Table 5-201 Table 5-202 Table 5-203 Table 5-204 Table 5-205 Table 5-206 Table 5-207 Table 5-208 Table 5-209 Table 5-210 Table 5-211 Table 5-212 Table 5-213 Table 5-214 Table 5-215 Table 5-216 Table 5-217 Table 5-218 Table 5-219 Table 5-220 Table 5-221 Table 5-222 Table 5-223 Table 5-224 Table 5-225 Table A-1 Table A-2 Table A-3 Table A-4 Table A-5
PAGE 18
Table of Contents Table B-3 xvii Settings for the QAS, DT, and IU Fields of the Negotiated Rate Information Page (INQUIRY Command)..................................................
PAGE 19
This chapter gives an overview of the contents of this manual, including the intended audience, how the manual is organized, terminology and conventions, and references. The Maxtor Atlas 10K III Product Manual is intended for reference by original equipment manufacturers (OEMs) that are integrating the disk drive into a system or subsystem, developers, and disk drive installers.
PAGE 20
About This Manual In the Glossary at the back of this manual, you can find definitions for many of the terms used in this manual.
PAGE 21
About This Manual The typographical and naming conventions used in this manual are listed below. Conventions that are unique to a specific table appear in the notes that follow that table. Typographical Conventions: • Names of Bits: Bit names are presented in initial capitals. An example is the Host Software Reset Bit. • Commands: Firmware commands are listed as all capitals. An example is MODE SELECT.
PAGE 22
About This Manual 1-4 Maxtor Atlas 10K III
PAGE 23
! !" #! " $ This chapter summarizes the general functions and key features of the Maxtor Atlas 10K III family of hard disk drives, as well as the applicable standards and regulations. Maxtor Atlas 10K III hard disk drives are part of a family of high performance, 1-inchhigh hard disk drives manufactured to meet the highest product quality standards. There are currently three models in the Maxtor Atlas 10K III series with capacities of 18.4, 36.7, and 73.
PAGE 24
General Description Performance • Average seek time of 4.5 ms for reads and 5.0 ms for writes • 10,000 RPM rotational speed • Average rotational latency of 3 ms • 8 MB SDRAM buffer.
PAGE 25
General Description Reliability • Automatic retry on read errors • 360-bit, interleaved Reed-Solomon Error Correcting Code (ECC), with cross checking correction up to three separate bursts of 32 bits each totalling up to 96 bits in length • Self-diagnostic firmware • Patented Airlock® automatic shipping lock and dedicated landing zone • Transparent media defect mapping • High performance, in-line defective sector skipping • Reassignment of defective sectors discovered in the field, without reformatting • S
PAGE 26
General Description • CE Mark authorization is granted by TUV Rheinland in compliance with our qualifying under EN 55022:1994 and EN 50082-1:1997. • C-Tick Mark is an Australian authorization marked noted on Maxtor’s disk drive products. The mark proves conformity to the regulatory compliance document AS/NZS 3548: 1995 and BS EN 55022: 1995.
PAGE 27
% This chapter explains how to unpack, configure, mount, and connect the Maxtor Atlas 10K III hard disk drive prior to operation. It also explains how to start up and operate the drive. . , . / , 0 !$ # ) !'"(+ For your safety, follow all safety procedures described here and in other sections of the manual.
PAGE 28
Installation • Always handle the drive carefully and gently. A drop of 1/4 inch onto a bench or desktop can damage a drive. • Do not bump, jar, or drop the drive. Use care when transporting the drive. • Always gently place the drive flat, PCB side down, on an appropriate ESD-protected work surface to avoid the drive being accidentally knocked over. • Do not pack other materials with the drive in its shielded bag. • Place the drive in the anti-static bag before placing in shipping container.
PAGE 29
Installation - The Maxtor Atlas 10K III hard disk drive is shipped without a faceplate and comes in the following SCSI interface configurations: • 68-pin Wide SCSI • 80-pin SCA-2 SCSI Figure 3-1 shows the mechanical dimensions of each of the drives. Shock Foot (typical) 25.59 mm 146.50 mm 101.60 mm Shock Foot (typical) 25.59 mm 146.50 mm 101.
PAGE 30
Installation 1")4 ! Maxtor Atlas 10K III hard disk drives are outfitted with plastic shock feet on the bottom edge of the base casting, near the corners, beneath the side mounting holes (translucent), and near the corners of the top cover next to the screws (black). The shock feet give an additional level of isolation to prevent the head and disk damage that occasionally occurs during unpacking, staging, and installation.
PAGE 31
Installation Figure 3-2 shows the packing assembly for a single Maxtor Atlas 10K III hard disk drive. Shipping containers of 10, 12, and 20-pack are available for multiple drive shipments.
PAGE 32
Installation , "(0' # !'"( 5 %& #+ (* "(( )!'"(+ This section includes setup and configuration information for Maxtor Atlas 10K III drives. These disk drives include • The 16-bit multimode Ultra160 SCSI, wide version with 68-pin SCSI connector, • The 16-bit multimode Ultra160 SCSI, version with SCA-2 80-pin connector. • The 16-bit multimode Ultra320 SCSI, wide version with 68-pin SCSI connector, • The 16-bit multimode Ultra320 SCSI, version with SCA-2 80-pin connector.
PAGE 33
Installation The drives are shipped from the factory with the jumpers installed across the A1 and A2 locations. This is the default configuration. The rest of the jumper positions are open. The configuration of a Maxtor Atlas 10K III hard disk drive depends on the host system in which it is to be installed. Figure 3-3 shows the printed circuit board (PCB) assemblies for 68-pin SCSI configurations, indicating the jumpers that control some of these options.
PAGE 34
Installation 12 $ SCSI ID Selection on Option Connector (68-Pin SCSI Connector Drives) SCSI ID Jumper Location – J3 Option Header Pin Pair 7/8 Pin Pair 5/6 Pin Pair 3/4 Pin Pair 1/2 0 0 0 0 0 1 1 0 0 0 2 0 1 0 0 3 1 1 0 0 4 0 0 1 0 5 1 0 1 0 6 0 1 1 0 7 1 1 1 0 8 0 0 0 1 9 1 0 0 1 10 0 1 0 1 11 1 1 0 1 12 0 0 1 1 13 1 0 1 1 14 0 1 1 1 15 1 1 1 1 Configure the drive for remote (external) SCSI ID selection by removing
PAGE 35
Installation $3%3 3 " 2 5 * 6" 7 00 * 6 7 Maxtor Atlas 10K III drives have three Spin Up modes: *+ 6 + 8 9 ( * ( 22 ,7: Spin up immediately when power is applied. Verify that no jumper is installed across the Delay Spin pin pair of the J3 Option Header. *+ 6 00 * 8 9 * ( 22 ,7: Spin up after a predetermined delay following power on: Install the jumper across pin pair 21/22 (GND/Stagger Spin) on the J3 Option Header.
PAGE 36
Installation $3%3 3 ( 9* *+ #+= 9 6 ! #4!7 The TERMPWR jumper enables the active termination circuit to receive power from an external host when installed. Figure 3-4 shows the termination power circuitry. &*0 $ % Termination Power Circuitry $3%3 3> 1+ , (5 , & 2 ,*) + ( The drive has an on-board green ‘Busy’ LED and a yellow ‘Fault’ LED.
PAGE 37
Installation Use Figure 3-5 to locate the appropriate pins for configuring the drive. Note that Figure 3-5 does not call out each of the 80 pins on the connector, but rather illustrates the layout of the pins. Note: The SCA-2 Connector version of the disk drives does not provide the following jumper configuration: TERMPWR, Active Termination, or Write Protection.
PAGE 38
Installation 12 $ SCSI ID Pin Assignments (SCA-2 Connector Versions of the Disk Drive) SCSI ID Location on SCA Connector ID3 - Pin 80 ID2 - Pin 40 ID1 - Pin 79 ID0 - Pin 39 0 0 0 0 0 1 0 0 0 1 2 0 0 1 0 3 0 0 1 1 4 0 1 0 0 5 0 1 0 1 6 0 1 1 0 7 0 1 1 1 8 1 0 0 0 9 1 0 0 1 10 1 0 1 0 11 1 0 1 1 12 1 1 0 0 13 1 1 0 1 14 1 1 1 0 15 1 1 1 1 Note: 0 indicates an open circuit from +2.4 V to Vcc +0.
PAGE 39
Installation Configure the desired spin up option (Table 3-3) by setting the state of the DELAY_SPIN (Pin 38) and STAGGER_SPIN (Pin 78) inputs on the 80-pin SCA2 connector (Figure 3-5). The states of these signals are set by using either hardwired connections at the backplane or backplane logic.
PAGE 40
Installation 5 %& # 5; "( !1 7:8 '( 9 When the J7 SE jumper is installed, it forces single-ended SCSI operation, and disables LVD mode and auto switch capabilities. When the jumper is not installed it allows auto switch to single-ended SCSI or LVD SCSI operation. Back of Drive Front of Drive SCA J1 Connector J7 Jumper J7 NC SE &*0 $ J7 Jumper Location on the 80-Pin SCA PCB Note: Force Single Ended Jumper needs to be across 2 lower pins in the magnified 4-pin diagram.
PAGE 41
Installation < 25 3 The configuration of J1 is different for the 68-pin and 80-pin SCSI variations. Figure 3-7 shows the various connector styles. J1 SCSI (68-Pin)/DC (4-Pin)/Auxiliary (12-pin) Combination Connector Pin 2 68-Pin SCSI-Bus Interface Connector Pin 1 12-Pin Option Connector Pin 1 4-Pin DC Power Connector 4 3 2 1 AMP Pin 68 Pin 12 Pin 2 J1 SCSI (80-Pin) SCA Connector Pin 2 Pin 1 Bottom 4.6±0.50 2.25±0.
PAGE 42
Installation < 678&'( '* "(( )!"# 8 12 $ % 68-Pin Wide LVD Pin Assignments SIGNAL NAME CONNECTOR CONTACT NUMBER +DB (12) +DB (13) +DB (14) +DB (15) +DB (P1) +DB (0) +DB (1) +DB (2) +DB (3) +DB (4) +DB (5) +DB (6) +DB (7) +DB (P) GROUND DIFFSENS TERMPWR TERMPWR RESERVED GROUND +ATN GROUND +BSY +ACK +RST +MSG +SEL +C/D +REQ +I/O +DB (8) +DB (9) +DB (10) +DB (11) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 CABLE CONDUCTOR NUMBER 1 3 5 7
PAGE 43
Installation < 7:8&'( 8 "(( )!"# 8 12 $ ' 80-Pin SCA-2 LVD Pin Assignments 80-PIN CONNECTOR CONTACT AND SIGNAL NAME (L) 12V CHARGE 1 (S) 12V 4 (S) 12V CABLE CONDUCTOR NUMBER NOT APPLICABLE 80-PIN CONNECTOR CONTACT AND SIGNAL NAME (L) 12V GROUND 41 (L) 12V GROUND 42 3 (L) 12V GROUND 43 (S) 12 V 4 (S) MATED 1 44 (S) OPT 3.3 VOLTS 5 (L) L OPT 3.3V CHARGE 45 (S) OPT 3.
PAGE 44
Installation (S) –DB (2) (S) –DB (1) (S) –DB (0) (S) –DB (P1) (S) –DB (15) (S) –DB (14) (S) –DB (13) (S) –DB (12) (S) 5V (S) 5V (L) 5V CHARGE (L) SPINDLE SYNC (L) RMT START (L) SCSI ID (0) (L) SCSI ID (2) 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 (S) +DB (2) (S) +DB (1) (S) +DB (0) (S) +DB (P1) (S) +DB (15) (S) +DB (14) (S) +DB (13) (S) +DB (12) (S) MATED 2 (L) 5V GROUND (L) 5V GROUND (L) ACTIVE LED OUT (L) DLYD_START (L) SCSI ID (1) (L) SCSI ID (3) 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 (S) =
PAGE 45
Installation < 678 '( '* '( 8 (* * "(( )!"# 12 $ 68-Pin Wide Single-Ended Pin Assignments SIGNAL NAME CONNECTOR CONTACT NUMBER GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND TERMPWR TERMPWR RESERVED GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND GROUND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 CABLE CONDUCTOR NUMB
PAGE 46
Installation < 7:8&'( 8 '( 8 (* * "(( )!"# 12 $ > 80-Pin SCA-2 Single-Ended Pin Assignments 80-PIN CONNECTOR CONTACT AND SIGNAL NAME (L) 12V CHARGE (S) 12V (S) 12V (S) 12 V (S) OPT 3.3 VOLTS (S) OPT 3.
PAGE 47
Installation 6 8 2678 3 The recommended mating connectors for the +5 VDC and +12 VDC input power connector are listed in Table 3-8.
PAGE 48
Installation 7 5 8 = 2678 3 J1 on the 68-pin SCSI PCB contains a 12-pin auxiliary connector. The pin assignments for this connector are shown in Table 3-9.
PAGE 49
Installation > Drive mounting orientation, clearance, and ventilation requirements are described in the following subsections. > #' (! !'"( The mounting holes on the Maxtor Atlas 10K III hard disk drive allow the drive to be mounted in any orientation. Figure 3-8 shows the location of the three mounting holes on each side of the drive. The drives also can be mounted using the four mounting hole locations on the PCB side. All dimensions are in millimeters.
PAGE 50
Installation > " (!'( )# ? # () The printed-circuit board assembly (PCBA) is very close to the mounting holes. Figure 3-9 specifies the clearance between the screws in the mounting holes and the PCBA. Do not use mounting screws longer than the maximum lengths specified in Figure 3-9. The specified screw length allows full use of the mounting-hole threads, while avoiding damaging or placing unwanted stress on the PCBA.
PAGE 51
Installation > 1")4 '& The shock clip provides an extra level of isolation from the occurrence of a short duration non-operational shock, particularly when the drive is mounted on a rigid platform. Shock performance is optimal when either four bottom mount locations or four outer side screw locations are used.
PAGE 52
Installation Above Unit Below Unit &*0 $ Crosswise Airflow Cooling 3-26 Maxtor Atlas 10K III
PAGE 53
& $! This chapter gives a detailed description of the physical, electrical, and environmental characteristics of the Maxtor Atlas 10K III hard disk drives. Table 4-1 Specifications MAXTOR ATLAS 10K III 18.4 GB MAXTOR ATLAS 10K III 36.7 GB MAXTOR ATLAS 10K III 73.4 GB Formatted Capacity 18.4 GB 36.74 GB 73.
PAGE 54
Specifications " ! # Maximum effective areal density MAXTOR ATLAS 10K III 18.4 GB MAXTOR ATLAS 10K III 36.7 GB MAXTOR ATLAS 10K III 73.4 GB 17.2 Gbits/in2 17.2 Gbits/in2 17.2 Gbits/in2 Servo Mechanical Timing Specifications: Sequential Head Switch Time2 ≤.27 ms read ≤.73 ms write ≤.27 ms read ≤.73 ms write ≤.27 ms read ≤.73 ms write Sequential Cylinder Switch Time3 ≤.3 ms read ≤.8 ms write ≤.3 ms read ≤.8 ms write ≤.3 ms read ≤.8 ms write Random 4 Average Seek (Read) 4.
PAGE 55
Specifications 1. Typical specifications assume 25°C ambient temperature, nominal supply voltages and no applied shock or vibration. Maximum specifications assume worst case extremes of operating temperature, humidity, and supply voltages. 2. Sequential Head Switch time is the time from the conclusion of the last sector of a track to the beginning of the first logical sector on the next track of the same cylinder. It includes sequencer overhead for write setup on head and cylinder switch. 3.
PAGE 56
Specifications Data is transferred from the disk to the read buffer at a rate of up to 55 MB/s in bursts. Data is transferred from the read buffer to the SCSI bus at a rate of up to 6 MB/s in the asynchronous mode, or at up to 160 or 320 MB/s in the synchronous mode. For more detailed information on interface timing, refer to Chapter 6. Table 4-3 illustrates the timing specifications of the Maxtor Atlas 10K III hard disk drive.
PAGE 57
Specifications < The Maxtor Atlas 10K III hard disk drive operates from two supply voltages: A ! / 3%B$ 3>B>$3% +12 V ±10% +5 V ±5% Allowable ripple and noise for each voltage: < +12 V 250 mVp-p +5 V 800 mV p-p (100 Hz to 8 KHz) 250 mV p-p (8 KHz to 20MHz) "? # @ ()'( You may apply the power in any order or manner, or open either the power or power return line with no loss of data or damage to the disk drive.
PAGE 58
Specifications < #'A "? # '++'& !'"( Table 4-5 lists the drive power dissipation and the corresponding currents for the various modes of operation of the Maxtor Atlas 10K III hard disk drive.
PAGE 59
Specifications 6 Table 4-6 specifies the acoustical characteristics of the Maxtor Atlas 10K III hard disk drive. The acoustics is measured in an anechoic chamber with background noise <25 dBA. Table 4-6 Acoustical Characteristics—Sound Power per ISO 7779 # ! " " # 4 ! " # 4 ! 6 7 6 D $ 7 MAXTOR ATLAS 10K III 18.4/36.7/73.4 GB Idle On Track 18.4 GB 36.7 GB 73.4 GB 3.1 Bels (typical) 3.4 Bels (typical) 3.6 Bels (typical) 3.3 Bels 3.6 Bels 3.
PAGE 60
Specifications ; , The Maxtor Atlas 10K III hard disk drives have the following mechanical characteristics: Height1: 1.0 in. Width: 4.0 in. Depth: 5.75 in. Weight (4-disk): 1.58 lb (25.4 mm) (101.6 mm) (146.1 mm) (720 grams) All dimensions are exclusive of any optional faceplate. 7 Table 4-7 summarizes the environmental specifications of the Maxtor Atlas 10K III hard disk drive.
PAGE 61
Specifications > > B +) &!'C' '!$ 5 Volts/meter @ 100 MHz. The drive functions normally when any exposed metal is subjected to electrostatic discharge excluding the PCB. This electrostatic discharge must be at a minimum interval of 30 seconds, either from a 150pF capacitor discharged through a 150KΩ resistor or from a 100pF capacitor through a 500kΩ resistor. > 0 – 5kV Average of <0.3 soft errors per discharge 5 – 10 kV Average of <1.
PAGE 62
Specifications : , 9 The Maxtor Atlas 10K III hard disk drive can withstand levels of shock and vibration applied to any of its three mutually perpendicular axes, or principal base axis, as specified in Table 4-8. A functioning drive can be subjected to specified operating levels of shock and vibration. When a drive has been subjected to specified non-operating levels of shock and vibration, with power to the drive off, there will be no change in performance at power on.
PAGE 63
Specifications Table 4-9 provides the error rates for the Maxtor Atlas 10K III hard disk drive. Table 4-9 Error Rates !! ! C# A ! & !! ! Recovered read errors1 <10 events per 1012 bits read Uncorrectable read errors2 1 event per 1016 bits read Seek Errors3 <10 events per 108 seeks 1. Recovered read errors are errors which require retries for data correction. Errors corrected by ECC on-the-fly are not considered recovered read errors.
PAGE 64
Specifications 4-12 Maxtor Atlas 10K III
PAGE 65
' # ( This chapter contains an overview of SCSI command and status processing and a detailed description of the commands supported by the disk drives. The SCSI command system enables the initiator to instruct the drive to perform specific functions. In this manual, unless otherwise stated, numerical values are given in decimal. Hexadecimal numbers, such as opcodes, are always given with an “h” following, as in 5Ah except when entire data tables are in hexadecimal.
PAGE 66
SCSI Description +99 , *+ +, 0+ 5 PERSISTENT RESERVATION OUT 5Fh Sequential READ (6) 08h Normal READ (10) 28h Normal READ BUFFER 3Ch Sequential READ CAPACITY 25h Immediate READ DEFECT DATA (10) 37h Sequential READ DEFECT DATA (12) B7h Sequential READ LONG 3Eh Sequential READ SKIP MASK E8h Normal REASSIGN BLOCKS 07h Sequential RECEIVE DIAGNOSTIC RESULTS 1Ch Sequential RELEASE 17h Sequential RELEASE (10) 57h Sequential REPORT LUNS A0h Sequential REP
PAGE 67
SCSI Description < "%% (* +)#'&!"# 9 ")4 An initiator communicates with the drive by sending a 6-, 10-, or 12-byte Command Descriptor Block (CDB) that contains the parameters for the specific command. The SCSI command's operation code is always the first byte in the CDB and a control field is the last byte. For some commands, the CDB is accompanied by a list of parameters sent during the data-out buffer transfer. Table 5-2 shows the format of a typical sixbyte CDB.
PAGE 68
SCSI Description &* 2, " () * *+ Logical Block Address The 6-byte READ, SEEK, and WRITE Command Descriptor Blocks contain a 21-bit Logical Block Address. The 10-, 12-, and 16- Command Descriptor Blocks contain a 32-bit Logical Block Address. Commands that require additional parameter data specify the length of the Logical Block Address that is needed. See the specific command descriptions for more detailed information.
PAGE 69
SCSI Description Table 5-5 Command Descriptor Block Control Field-Field Descriptions &* 2, " () * *+ Vendor Specific Bits These bits must be 0. NACA Normal Auto-Contingent Allegiance - This bit !" #"$% to indicate that SCSI-2 Contingent Allegiance rules apply. Link Bit A Link bit set to one signals that the initiator requests continuation of a task (I/O Process) across two or more SCSI commands.
PAGE 70
SCSI Description < ! ! +B ##"# &"#!'( SCSI message-level errors are communicated by messages that are defined specifically for that purpose. SCSI command-level errors are communicated by a status that is returned by the drive during the STATUS phase.
PAGE 71
SCSI Description < !" "(!'( (! ' () "(*'!'"( (* "(!'( (! ' () "(*'!'"( Auto Contingent Allegiance condition (ACA) is the SCSI-3 term for the condition of the drive immediately after it returns a CHECK CONDITION status code. While it is in this condition, the drive: • Keeps the status information (sense data) that characterizes the nature of, and the reason for, the command's failure.
PAGE 72
SCSI Description < < D! (* * "(!'( (! ' () "(*'!'"( Under SCSI-2 processing, the Extended Contingent Allegiance condition extends Contingent Allegiance handling so the initiator has explicit control over the point at which suspended (queued) commands are resumed. It allows the initiator to send a REQUEST SENSE command and then send the non-tagged commands to access the drive’s medium.
PAGE 73
SCSI Description < 6 '(4 * "%% (*+ An I/O Process (task) may contain multiple commands that are linked together. The initiator communicates this condition of linked (or unlinked) commands by setting (or clearing) the Link bit of the Command Descriptor Block’s control word. A linked command is one in which the Link bit in the Command Descriptor Block is set. After successful completion of a linked command the drive sends an INTERMEDIATE status, followed by a LINKED COMMAND COMPLETE message.
PAGE 74
SCSI Description < ; # (+0 # "%% (* "%&"( (!+ Many of the SCSI commands cause data to be transferred between the initiator and the drive. The content and characteristics of this data are command-dependent. Table 5-8 lists the information transmitted for all of the commands. The “Length in CDB” column of Table 5-8 identifies the Command Descriptor Block field used by the drive to determine how much command-related data are to be transferred.
PAGE 75
SCSI Description +99 , 0 * " " 6 + " *@ 7 READ BUFFER Allocation --- READ BUFFER Header (4) Mode-zero Buffer (512) or Section of Drive’s DRAM or READ BUFFER Desc.
PAGE 76
SCSI Description +99 , 0 * " WRITE LONG Byte Transfer (must be 560) 0 WRITE SAME " 6 + " *@ 7 • Data (512) • LBA Tag (2) • EDC (2) • ECC (44) " 6 + * * + 7 -- Data (1 logical sector) WRITE SKIP MASK < 7 The SCSI command descriptions that follow this page contain detailed information about the SCSI commands that are supported by the drive.
PAGE 77
SCSI Description < > , "%% (* 2 :13 The CHANGE DEFINITION command shown in Table 5-9 and Table 5-10 set the SCSI compliance for disk drives with parallel SCSI interfaces to one of four different levels: SCSI-1, SCSI-1/CCS, SCSI-2 or SCSI-3.
PAGE 78
SCSI Description < : "%% (* 2: 13 The FORMAT UNIT command formats the disk's storage media into initiatoraddressable logical blocks according to initiator-defined options. This command ensures that the disk storage media is formatted so that all data sectors are accessible. Any data residing on the disk before this command is invoked is lost. This command repairs damage left by previous WRITE LONG commands.
PAGE 79
SCSI Description Table 5-11 FORMAT UNIT Command Descriptor Block-Data Format * > ' % $ 5 0 1 Operation Code (04h) Reserved Fmt Data Cmp List 2 Vendor-Specific 3-4 Interleave 5 Control &* 2, FmtData Defect List Format Table 5-12 FORMAT UNIT Command-Field Descriptions " () * *+ Format Data. When the Format Data value is 1, it indicates that a data-out buffer transfer occurs as part of the command execution.
PAGE 80
SCSI Description < : 'A "#%+ "0 "%% (*+ Five different forms of the FORMAT UNIT command are supported through different combinations of the Format Data bit, Complete List bit, and the information in the Defect List Length field. (Refer to FORMAT UNIT Defect Header List for a description of the Defect List Length field.) The different command forms give the initiator control over the contents of the Grown Defect List.
PAGE 81
SCSI Description '3 3 3 & ! " ? ) *( , The FORMAT UNIT Defect List Header (Table 5-15) provides several optional format control bits to give the initiator more control over the defect lists. Table 5-16 provides descriptions of the data fields in the Defect List Header Table 5-15 .
PAGE 82
SCSI Description '3 3 3 & ! " ? ) " () * + 2+)E &+ 9 Each descriptor specifies a 4-byte defective sector address of the sector that contains the defect as shown in Table 5-17. Table 5-17 FORMAT UNIT Defect Descriptor-Block Format * 5 > ' 0-3 '3 3 3$ % $ Defective Block Address & ! " ? ) " () * + F # 5(*) 2 ) + , 5 ( & +9 , - &+ 9 The Physical Sector defect descriptor specifies the location of a defect that is the length of a sector.
PAGE 83
SCSI Description '3 3 3% & ! * * 2*G *+ # " () * + The Initialization Pattern option specifies that the logical blocks on the drive medium will contain a specified initialization pattern. The Initialization Pattern descriptor is sent to the drive as part of the FORMAT UNIT parameter list. Table 5-19 describes the Initialization Pattern descriptors. The contents of the descriptor fields are described in Table 5-20 and the types in Table 5-21.
PAGE 84
SCSI Description < - "%% (* 2 13 The INQUIRY command allows the initiator to determine the kind of SCSI devices attached to its SCSI bus. It causes a device that is attached to a SCSI bus to return information about itself. The drive identifies itself as a Direct Access Storage Device that implements the applicable interfacing protocol. The drive does not need to access its storage medium to respond to the inquiry. The INQUIRY commands are described in Table 5-22 and Table 5-23.
PAGE 85
SCSI Description < ! (* #* (@ '#$ ! The Standard Inquiry Data Page is returned by the drive in response to the INQUIRY command if EVPD = 0. The data format is described inTable 5-24 and the fields are described in Table 5-25.
PAGE 86
SCSI Description &* 2, 9 < 2 " () * *+ ACKQREQQ 0 Device supports REQ and ACK data handshake on Q cable. Addr32 0 32-bit wide SCSI address 16-bit wide SCSI address Addr16 0/1 TrmTSK 0 TERMINATE TASK Function is not supported Response Data Format 2 This Standard Inquiry Data is in the format specified in the International Standard. RelAdr 0 Relative Addressing is not supported. WBus 32 0 32-bit wide bus is not supported.
PAGE 87
SCSI Description < '! #"* )! ! + The Vital Product Data pages that can be returned by the drive are described in the following paragraphs in the sequence shown in Table 5-27. '3 3 3 + , <* 2 # +, ) " # 0 ( # 0 6 7 The Supported Vital Product Data Pages page (Table 5-26) provides a directory of the Vital Product Data Pages that are supported by the drive.Table 5-27 lists the supported pages.
PAGE 88
SCSI Description '3 3 3 * * 2 91 # 0 6 7 The Unit Serial Number page contains the drive's PCB Serial Number (Table 5-28) and the HDA Serial Number (Table 5-29).
PAGE 89
SCSI Description '3 3 3$ 9 2 9 , * 0 " ?* * *+ # 0 6 7 The Implemented Operating Definition page reflects the current and available operation definitions as described in Table 5-30 and Table 5-31.
PAGE 90
SCSI Description '3 3 3% 9 2 9 , * 0 " ?* * *+ # 0 6 7 The ASCII Implemented Operating Definition page returns the character string's length (1Bh) in byte 4, followed by the appropriate character string (“SCSI-3, SCSI2, SCSI-1/CCS” in bytes 5 through 31 for Parallel SCSI. This is described in Table 5-32.
PAGE 91
SCSI Description '3 3 3' " @*) , *?*) *+ # 0 6 $ 7 6 $ C7 The Device Identification Page provides the means to retrieve zero or more identification descriptors that apply to the logical unit (Table 5-33 and Table 5-34).
PAGE 92
SCSI Description Identifier Type 5-28 This field specifies the format and assignment authority for the identifier. Values in this field are: Value Description 0h No assignment authority was used; there is no guarantee that the identifier is globally unique (vendor-specific). 1h The first 8 bytes of the Identifier field represent the Vendor ID. 2h The Identifier field contains an IEEE Extended Unique Identifier, 64-bit (EUI-64). The Identifier Length field (Byte 7) is set to 8.
PAGE 93
SCSI Description '3 3 3 &* 9= ! @*(*+ # 0 6 7 The Firmware Revision page reflects the current firmware revision and date and time when it was built. The Firmware Revision Page is described in Table 5-35. Table 5-35 Firmware Revision Page-Data Format * 5 0 > ' Peripheral Qualifier =0 % $ Page Code (C0h) 2 Reserved 3 20 - 39 Peripheral Device Type = 0 (Direct Access Device) 1 4 - 19 Page Length = 24h Full Firmware Version Blank Fill (e.g.
PAGE 94
SCSI Description '3 3 3> - + ? ) * 0 ?+ 9 *+ # 0 6 7 The Maxtor Manufacturing Information Page, as described in Table 5-36 reflects the part number assigned by Maxtor’s manufacturing group in accordance with vendor requirements.
PAGE 95
SCSI Description '3 3 3 0+ * , ! ?+ 9 *+ # 0 6 % 7 The Negotiated Rate Information Page is described in Table 5-37 and Table 5-38.
PAGE 96
SCSI Description &* 2, Table 5-38 Negotiated Rate Information Page-Field Descriptions " ?* * *+ Transfer Period Factor REQ / ACK Offset AIP Applicable values of this field are provided in Appendix B. This is the negotiated value of Req / Ack offset between the initiator and the target.
PAGE 97
SCSI Description '3 3 3 +99 , + " # 0 ( An application client can request command support data by setting the CmdDt bit of the INQUIRY command to 1, and specifying the SCSI operation code of the Command Descriptor Block (CDB) for which it wants information. Format of the command support data and definitions of the fields follow in Table 539, Table 5-40, and Table 5-41.
PAGE 98
SCSI Description &* 2, " () * *+ CDB Usage Data This field contains information about the CDB for the Operation Code being queried. Note that the first byte of the CDB Usage Data contains the OpCode for the operation specified. All of the other bytes of the CDB Usage Data contain a map for bits in the CDB of the OpCode specified. Note: +, The bits in the map have a 1-to-1 correspondence to the CDB for the OpCode being queried.
PAGE 99
SCSI Description - " ! , 4 . !C *( ! ) *@ , , 9," * H 2Bh SEEK (10) 03 01 0A 2BE0FFFFFFFF00 000003 2Eh WRITE AND VERIFY 03 01 0A 2EF2FFFFFFFF00F FFF03 2Fh VERIFY 03 01 0A 2FF2FFFFFFFF00F FFF03 35h SYNCH.
PAGE 100
SCSI Description < "%% (* 2 13 The drive collects and stores performance data and error summaries in counters. The LOG SELECT command is used to zero these counters. The LOG SELECT command is a complementary command to the LOG SENSE command. The format of the LOG SELECT CDB and a description of the fields follows in Table 5-42 and Table 5-43 respectively.
PAGE 101
SCSI Description < "%% (* 2 13 Note: Log Sense data pages require special interpretation and also are subject to change. For assistance with the Log Sense data pages, contact your Maxtor Applications Engineer. The drive collects operational information and stores these statistics as log data. Log data are grouped by category into log pages. The LOG SENSE command allows an initiator to retrieve the stored log data. The LOG SENSE command is a complementary command to the LOG SELECT command.
PAGE 102
SCSI Description < "%% (* +)#'&!"# 9 ")4 The Command Descriptor Block for the LOG SENSE command is shown in Table 5-45. Table 5-46 contains field descriptions.
PAGE 103
SCSI Description < " + The log pages that are returned from the drive have a common format that is shown in Table 5-47. Each page contains a 4-byte header followed by one or more log parameters. Refer to Table 5-48. Table 5-49 contains the format for the Generic Log Parameter and Table 5-50 describes the fields.
PAGE 104
SCSI Description &* 2, Parameter Code Table 5-50 Generic Log Parameter-Field Descriptions " () * *+ A code which uniquely identifies each parameter on a given Log Page. For example, the code 8002h on the Seek Performance Summary page reports the average seek time while the same code on the Block Replacement Summary page reports the number of blocks replaced. The following pages in this manual contain the lists of applicable parameters for each Log page. DU Disable Update.
PAGE 105
SCSI Description < 263 "%% (* 2 <13 SCSI refers to the drive’s operational parameters as its mode parameters. SCSI groups the mode parameters by function into a set of data structures referred to as mode pages. The MODE SELECT (6) command allows the initiator to modify some of these mode pages and thereby control some of the drive’s operational characteristics. The Save Page (SP) option in the Command Descriptor Block makes the changes permanent.
PAGE 106
SCSI Description < ('!' !"#8 1 ( C "* + Table 5-53 lists the mode pages that are supported by the drive. An initiator can change these pages by supplying them, with the desired changes included, in the MODE SELECT command’s data-out buffer transfer. The initiator should first use a MODE SENSE command to read the appropriate pages and leave non-changeable values as read when the initiator subsequently writes the changeable pages with the MODE SELECT command.
PAGE 107
SCSI Description < "* $& + The drive maintains three distinct sets of mode pages. They are the current page, the default page, and the saved page. The drive also reports a fourth set of changeable pages. The page types are defined in Table 5-54. # 0 5 Table 5-54 Mode Page Types " ?* * *+ The mode page set applies to all and defines the drive’s mode. The SCSI-2 specification states that a drive can maintain Mode parameters on a per-initiator basis if it so chooses.
PAGE 108
SCSI Description < "* # % ! # '+! Table 5-55 shows the format of the Mode Parameter List that is passed by the initiator to the drive during the command’s data-out buffer transfer. Table 5-56 describes the fields. Table 5-57 and Table 5-58 provides a description of the data format and fields of the Mode Parameter Header. Table 5-59 and Table 5-60 describe the format and field descriptions for the Mode Parameter Block Descriptor.
PAGE 109
SCSI Description Table 5-59 Mode Parameter Block Descriptor-Data Format * 5 > ' % $ 0 Density Code 1–3 Number of Blocks 4 Reserved 5–7 Block Length &* 2, Table 5-60 Mode Parameter Block Descriptor-Field Descriptions " () * *+ Density Code Ignored by the drive. This field specifies the number of logical blocks on the unit that are affected by the current MODE SELECT command. When this field is 0, the MODE SELECT parameters are put into effect for all logical blocks on the unit.
PAGE 110
SCSI Description '3 %3$3 0+ * ( +? 0 12 # 0 ( The drive’s changeable pages are described on the following pages. The data fields for each of these pages fall into one of the categories described in Table 5-61. 0+ 5 Fully Supported Temporary Table 5-61 Categories of Changeable Pages " () * *+ A field in this category can be modified by the MODE SELECT command, can be saved and can affect the drives processing.
PAGE 111
SCSI Description '3 %3$3 * *+ + ,* *+ # 0 6 7 The Unit Attention Page is used to enable or disable the generation of Unit Attention Conditions. The Unit Attention Condition Page format and field descriptions are described in Table 5-62 and Table 5-63 respectively.
PAGE 112
SCSI Description '3 %3$3$ ! , 4 * + ! )+@ 5 # 0 6 7 The Read-Write Error Recovery page controls the drive’s response to error conditions that arise during the course of READ (6), READ (10), WRITE (6), WRITE (10) command processing and during the write portion of WRITE AND VERIFY command processing. The Read-Write Error Recovery page format and field descriptions are described in Table 5-64 and Table 5-65 respectively.
PAGE 113
SCSI Description &* 2, " ? 2 < 2 " () * *+ RC 0 Read Continuous. When the value is 0, the drive attempts error recovery when it encounters an error. When the value is 1, the drive suppresses error recovery. EER 0 Enable Early Recovery. Post Error Recovery. When the value is 0, the drive returns a GOOD status in cases where error recovery is invoked and successful.
PAGE 114
SCSI Description '3 %3$3% "*()+ ) ;! )+ ) # 0 6 7 The Disconnect–Reconnect Page provides the application client the means to attempt to optimize the performance of the delivery subsystem. The data format and field descriptions are described in Table 5-66 and Table 5-67.
PAGE 115
SCSI Description &* 2, " ? 2 < 2 EMDP 0 Fairness Arbitration 111b Indicates whether or not the target should use fair or unfair (e.g., priority) arbitration when beginning the interconnect tenancy. Value Description 000b Disables the fairness algorithm. A fixed priority scheme based on the SCSI ID assigned is used. Non-Zero Any non-zero value enables the fairness algorithm (SCSI SPI-2 ANSI standard, Appendix B). 0 Disconnect Immediate.
PAGE 116
SCSI Description '3 %3$3' < *?5 + ! )+@ 5 # 0 6 > 7 The Verify Error Recovery Page controls the drive’s response to error conditions that arise during the VERIFY command and during the verify operation of the WRITE AND VERIFY command. The Verify Error Recovery Page is not supported in the SCSI-1/CCS Operating Mode. The data format and field descriptions are described in Table 5-68 and Table 5-69 respectively.
PAGE 117
SCSI Description '3 %3$3 ) * 0 # 0 6 7 The Caching Page controls the drive’s cache management policy. The data format and field descriptions are described in Table 5-70 and Table 5-71 respectively.
PAGE 118
SCSI Description Table 5-71 Caching Page-(Page 8) &* 2, PS " ? 2 < 2 " () * *+ 1 Parameters Savable. This bit is only used with the MODE SENSE command. A returned value of 1 indicates that the target is capable of saving the page in a non-volatile, vendor-specific location. Bit reserved with MODE SELECT command. Write Cache Enable. The default value of 1 enables write-back caching when processing a WRITE command.
PAGE 119
SCSI Description &* 2, Maximum Pre-fetch Ceiling " ? 2 < 2 " () * *+ 0421h Specifies an upper limit on the number of logical blocks computed as the maximum pre-fetch. If this number of sectors is greater than the maximum pre-fetch, then the number of logical blocks to pre-fetch is reduced to the value stored in the maximum pre-fetch ceiling field. FSW 0 The Force Sequential Write bit. LBCSS 0 The Logical Block Cache Segment Size bit.
PAGE 120
SCSI Description '3 %3$3> + +2 +, # 0 6 7 The Control Mode page controls the drive’s command processing and error handling policies. The data format and field descriptions are described in Table 5-72 and Table 5-73 respectively.
PAGE 121
SCSI Description &* 2, < 2 PS GLTSD Table 5-73 Control Mode Page-Field Descriptions (Page 0Ah) " ? 2 " () * *+ 1 0 Parameters Savable. This bit is only used with the MODE SENSE command. A returned value of 1 indicates that the target is capable of saving the page in a non-volatile, vendor-specific location. The bit is reserved with the MODE SELECT command. Global Logging Target Save Disable. If this bit = 1, the ability to save log ages to disk is disabled.
PAGE 122
SCSI Description '3 %3$3 + ) , # * *+ # 0 6 7 The Notch and Partition page contains parameters for drives that implement a variable number of sectors per cylinder, and, support this page. Each section of the logical unit with a different number of sectors is referred to as a notch (or band). Each notch must span a set of consecutive logical blocks in the logical unit, the notches must not overlay, and no logical blocks can be excluded from the notches.
PAGE 123
SCSI Description " &* 2, PS Table 5-75 Notch and Partition Page-Field Descriptions (Page 0Ch) " ? 2 " () * *+ < 2 0 Parameters Savable. This bit is only used with the MODE SENSE command. The returned value of 0 indicates that the target is not capable of saving this page in a non-volatile vendor specific location This bit is reserved with the MODE SELECT command. Notched (banded) Drive.
PAGE 124
SCSI Description '3 %3$3 #+ + +2 +, # 0 6 7 The port control mode page (see Table 5-76 and Table 5-77) contains those parameters that affect SPI SCSI device port operation options. The page will be implemented by LUN 0 of all SPI SCSI devices. The page will not be implemented by logical units other than LUN 0. The implementation of any bit and its associated functions is optional. The page follows the MODE SENSE/MODE SELECT rules specified by SCSI Primary Commands-2 standard.
PAGE 125
SCSI Description Table 5-77 Port Control Page Long Format * 5 > 0 PS ' LONG (1) $ Page Code (19h) 1 2 % Subpage Code MSB Page Length (n-3) 3 Page Length (n-3) 4 LSB Reserved 5 Reserved 6 Protocol Identifier (1h) Protocol Specific Mode Parameters n The Subpage Code field indicates which subpage is being accessed. Subpage Code values are listed in Table 5-93. If the Subpage Code field is zero, the target will return a CHECK CONDITION status.
PAGE 126
SCSI Description '3 %3$3 #+= + ,* *+ # 0 6 7 The Power Condition Page controls disk drive Power Management functions. Power Management provides three sub-states of UNIT READY: • ACTIVE: This is the state of highest power consumption for the disk drive. A media access command is acted upon immediately by the drive. • IDLE: This is a state of lower power consumption for the disk drive. A media access command is acted upon after a delay of approximately one second.
PAGE 127
SCSI Description &* 2, Table 5-79 Power Condition Page-Field Descriptions (Page 1Ah) " ? 2 " () * *+ < 2 PS 0 Parameters Savable. This bit is only used with the MODE SENSE command. A returned value of 1 indicates that the target is capable of saving the page in a non-volatile, vendor-specific location. The bit is reserved with the MODE SELECT command. IdlEnb 0 Enable Idle Timer. This is a lower power consumption state of the drive.
PAGE 128
SCSI Description '3 %3$3 ?+ 9 *+ -) *+ ( + +2 # 0 6 7 This page defines the methods used by the disk drive to control the reporting and operations of specific informational exception conditions. This page applies only to informational exceptions that report an additional sense code of FAILURE PREDICTION THRESHOLD EXCEEDED to the application client. Informational exception conditions occur as the result of vendor-specific events within a disk drive.
PAGE 129
SCSI Description &* 2, PS Table 5-81 Information Exceptions Control Page-Field Descriptions (Page 1Ch) " ? 2 " () * *+ < 2 1 Parameters Savable. This bit is only used with the MODE SENSE command. A returned value of 1 indicates that the target is capable of saving the page in a non-volatile, vendor-specific location. This bit is reserved with the MODE SELECT command. Performance. This bit enables/disables performance-sensitive functions.
PAGE 130
SCSI Description &* 2, Report Count " ? 2 < 2 " () * *+ The value contained in this field indicates the number of times to report an informational exception condition to the application client. A value of 0 in this field indicates there is no limit on the number of times the disk drive will report an informational exception condition. Each time the disk drive detects a SMART failure, the SMART status is reported the number of times indicated by the value of the Report Count field.
PAGE 131
SCSI Description '3 %3$3 - + *I # 0 6$ 7 This Maxtor-unique page is implemented for historical purposes only. All unused fields are changeable but are ignored by the drive. The data format and field descriptions are described in Table 5-83 and Table 5-84 respectively. Table 5-83 Maxtor-Unique Page-Data Format (Page 39h) * 5 0 > ' % PS Rsv’d Wait SpinUp Enable Enable Error Logging Disable Parity Check Reall. Uncor.
PAGE 132
SCSI Description Table 5-84 Maxtor-Unique Page-Field Descriptions (Page 39h) " ? 2 " () * *+ &* 2, PS 1 Parameters Savable. This bit is only used with the MODE SENSE command. A returned value of 1 indicates that the disk drive is capable of saving the page in a non-volatile, vendor-specific location. The bit is RESERVED with a MODE SELECT command. WaitSpinUp Enable 0 When this field = 0, the disk drive spins up upon power on. When this field = 1, the disk drive performs a Wait/Spin.
PAGE 133
SCSI Description &* 2, " ? 2 " () * *+ Software Selectable SCSI ID 0 When SSSIE (Byte 3, bit 7) = 1, this field determines the disk drive’s SCSI ID. When changing SCSI ID via the MODE SELECT command, the SCSI ID changes after the next reset or power cycle. If at initial power on the SSSIE bit is set to 1 (the bit’s previous setting was saved to disk) the Software Selectable SCSI ID field’s value determines the disk drive’s SCSI ID.
PAGE 134
SCSI Description &* 2, " ? 2 " () * *+ Disable Reassign Copy. When this field = 0, the disk drive copies bestguess data to the new physical block during REASSIGN BLOCKS command processing. If the disk drive cannot successfully read the original block’s data, the disk drive sets a Forced Error flag in the replacement block’s flags. DRC 0 When this field = 1, the disk drive does not copy a block’s data and obtain best-guess data; it first reassigns the block and then writes data to the block.
PAGE 135
SCSI Description &* 2, " ? 2 " () * *+ Disable Auto Move Heads 0 When set to a 0, Move heads is on meaning that if there is no I/O activity for 30 seconds the heads will move on there own. When set to a 1 Move heads will be turned off. ESL 0 Enable Save Log. When set = 1, saving and loading of non-SMART pages to/from the MCS area is enabled. IMR 0 Infinite Message Retry. When set = 1, the number of retries at a message error is infinite. IOE 1 Individual ORCA Profile Enabled.
PAGE 136
SCSI Description '3 %3$3 $ (5 ) + + ( ?+ 9 *+ # + ) *+ 6 #7 To start AIP: 1. Make sure “AIP Generation Disabled” (byte 10, bit 3) is cleared. Default is 0. 2. Make sure “AIP Checking Enabled” (byte 10, bit 2) is set for EACH. This bit is maintained uniquely for each unique initiator ID that senses it or selects it, so all initiators that want to participate in AIP must set this for themselves. Default is 0. 3. Send a negotiation message (SDTR, WDTR, or PPR) with valid AIP data.
PAGE 137
SCSI Description < < 2 :3 "%% (* 2<<13 The MODE SELECT (10) command allows the initiator to modify certain mode pages and thereby control some of the drive’s operational characteristics. Refer to MODE SELECT (6) for additional descriptions. See Table 5-85 for the data format of the MODE SELECT (10) Command Descriptor Block. See MODE SELECT (6), Table 5-88, for descriptions of the fields.
PAGE 138
SCSI Description Table 5-88 Mode Parameter Block Descriptor-Field Descriptions " &* 2, " () * *+ 5-74 Number of Blocks The value in this field specifies the number of logical blocks on the disk to which the density code and block length fields apply. A value of 0 in this field indicates that all of the remaining logical blocks on the disk have the medium characteristics specified. Density Code The Density Code field is unique for each device type. Direct access devices value is zero.
PAGE 139
SCSI Description < 6 263 "%% (* 2 13 The MODE SENSE (6) command allows the initiator to read the drive's sector descriptor and mode pages. The MODE SENSE Command Descriptor Sector is shown in Table 5-89 and the data fields are described in Table 5-90. The Mode Parameter Header is shown in Table 5-91 and the data fields are described in Table 5-92.
PAGE 140
SCSI Description " &* 2, Table 5-92 Mode Parameter Header-Field Descriptions " () * *+ Mode Data Length Medium Type Device-Specific Parameter Block Descriptor Length of the returned data Always zero (0) Bit 7 - This bit is set if the drive is write protected Bit 4 - This bit is always set to indicate that the drive supports cache memory. Zero (0) if Block Descriptor (DBD) in MODE SENSE Command Descriptor Length sector is 0. If DBD is 1, then the Block Descriptor Length is eight (8).
PAGE 141
SCSI Description < 6 *8 ( $ "* + Table 5-93 lists read-only mode pages. Table 5-53 lists initiator-changeable mode pages.
PAGE 142
SCSI Description < 6 "#% ! A') 2: 13 The Format Drive Page (Table 5-94) describes the drive's medium format. The data fields are described in Table 5-95. Note that the page is savable but no parameters are changeable.
PAGE 143
SCSI Description &* 2, PS Table 5-95 Format Device Page-Field Descriptions (Page 3) < 2 " () * *+ 0 The number of physical tracks per cylinder: 18 GB, - for 36 GB, . for 73 GB Tracks/Zone for Alternate Sectors/Zone Alternate Tracks/ Zone Parameters Savable. This bit is only used with the MODE SENSE command. This bit is reserved with the MODE SELECT command. A PS bit value of 1 indicates that the disk drive is capable of saving the page in a non-volatile vendor specific location.
PAGE 144
SCSI Description < 6 ' '* '+4 "% !#$ 2: 13 The Rigid Disk Geometry Page describes the drive geometry. The data format and field descriptions are described in Table 5-96 and Table 5-97 respectively.
PAGE 145
SCSI Description &* 2, RPL < 2 " () * *+ 00b Rotational Position Locking is used for spindle synchronization in storage arrays. The modes are: 00b – Disabled 10b – Master 01b – Slave 11b – Not supported RPL can be overridden if the Maxtor (Vendor) Special Function Control page Auto field value = 1. " Rotational Offset indicates the amount of rotational offset that the drive uses when synchronized.
PAGE 146
SCSI Description < 6 # '( "(!#" C& The Margin Control subpage (see Table 5-98) contains parameters that set and report margin control values for usage between the initiator/target pair on subsequent synchronous and paced transfers. A MODE SELECT command will return the current settings for the initiator/target pair. Fields that are not implemented will be reported as zero.
PAGE 147
SCSI Description < 6 < A * # '('( "(0' # !'"( + C& The saved training configuration values subpage is used to report the SCSI device's saved training configuration values. These vendor specific values are maintained by the SCSI device when the retain training information option is enabled. The fields are listed in Table 5-99; however the content of the fields is vendor specific. Only values for the current I_T nexus are reported.
PAGE 148
SCSI Description < 6 6 "!' ! * !!'( + C& The negotiated settings subpage, shown in Table 5-100, is used to report the negotiated settings of a target for the current I_T nexus.
PAGE 149
SCSI Description < 6 ; D!"#8 ('@ )1'( 2 713 The Maxtor-Unique Caching Page is a read-only page that reports the number of segments in the drive's cache memory. The data format and field descriptions are described in Table 5-102 and Table 5-103 respectively.
PAGE 150
SCSI Description < ; 2 :3 2< 13 The MODE SENSE command allows the initiator to read the drive’s sector descriptor and mode pages. See Table 5-104 for MODE SENSE (10) Command Descriptor Block – Data Format, Table 5-105 for Mode Parameter Header (10 Byte) — Data Format, and Table 5-106 for Mode Parameter Block Descriptor – Data Format. Refer to Table 5-90,Table 592, and Table 5-107 for descriptions of the fields.
PAGE 151
SCSI Description Table 5-107 Mode Parameter Header & Block Descriptor-Field Descriptions " &* 2, " () * *+ Mode Data Length Reserved. Must be 0. Medium Type Ignored by the drive. Device Specific Parameter Ignored by the drive. Block Descriptor Length The value = 0 if no Block Descriptor is supplied; the length is 8 if a block descriptor is supplied. Density Code Ignored by the drive.
PAGE 152
SCSI Description < 7 "%% (* 2< 13 The PERSISTENT RESERVATION IN command is a 10-byte command used to obtain information about persistent reservations and reservations that are active within a device server. It is used in conjunction with the PERSISTENT RESERVATION OUT command.
PAGE 153
SCSI Description Table 5-109 PERSISTENT RESERVATION IN Command-Field Descriptions " &* 2, " () * *+ Service Action Service actions that require information about persistent reservation and registrations may require enabling of nonvolatile memory within the logical unit.
PAGE 154
SCSI Description Table 5-111 Read Keys Parameters-Field Descriptions " () * *+ " &* 2, The value in this field is a 32-bit counter in the device server that is incremented each time a PERSISTENT RESERVATION OUT command requests a Register, Clear, Pre-empt, or Pre-empt and Clear operation.
PAGE 155
SCSI Description Table 5-113 Read Reservations Parameters-Field Descriptions " () * *+ " &* 2, The value in this field is a 32-bit counter in the device server that is incremented each time a PERSISTENT RESERVATION OUT command requests a Register, Clear, Pre-empt, or Pre-empt and Clear operation.
PAGE 156
SCSI Description Table 5-115 PERSISTENT RESERVATION IN Read Reservations Descriptor-Field Descriptions " " () * *+ &* 2, Reservation Key ScopeSpecific Address The Reservation key field contains an 8-byte value that identifies the reservation key under which the persistent reservation is held.
PAGE 157
SCSI Description +, 0h Table 5-116 Persistent Reservation Type Codes and Their Meanings 9 " () * *+ READ Shared READS: Shared; any application client on any initiator may execute commands that perform transfers from the disk to the initiator. WRITES: Prohibited; any command from any initiator that performs a transfer from the initiator to the disk results in a reservation conflict.
PAGE 158
SCSI Description +, 9 " () * *+ READS: Shared; any application client on any initiator may execute commands that perform transfers from the disk to the initiator.
PAGE 159
SCSI Description # (*( ! ( @ *+ 2 ,5 2, LU Shared Access * EX NN YY YY YY NN NN YO YO YO NN LU WRITE Exclusive RO EX YY YY YY YY YY NN NN YO YO YO YO OO NN NN YY YY YY YY YY NN NN YO YO YO YO YO NN NN LU Exclusive Access RO EX YY YY YO KEY: LU = Logical Unit Scope EX = Extent or Element Scope RO = Registrants Only * = Conflicts with all reservation requests from other initiators.
PAGE 160
SCSI Description < > "%% (* 2< 13 The PERSISTENT RESERVATION OUT command is a 10-byte command used to reserve a logical unit or an extent within a logical unit for the exclusive or shared use by an initiator. The command is used in conjunction with the PERSISTENT RESERVATION IN command; it is not used with the RESERVE and RELEASE commands. Persistent reservations conflict with reservations made via the RESERVE command.
PAGE 161
SCSI Description Table 5-119 PERSISTENT RESERVATION OUT Command-Field Descriptions " &* 2, " () * *+ Service Action Service actions that require information about persistent reservation and registrations may require enabling of nonvolatile memory within the logical unit.
PAGE 162
SCSI Description " &* 2, " () * *+ Type The value of the Type field specifies the characteristics of the persistent reservation being established for all data blocks within the extent or within the logical unit. Refer to Table 5-121 for the applicable Type codes and their meanings Parameter List Length Fields contained in the PERSISTENT RESERVATION OUT parameter list specify the reservation keys and extent information required to perform a persistent reservation service action.
PAGE 163
SCSI Description +, 9 " () * *+ A PERSISTENT RESERVATION OUT command with Release service action removes a persistent reservation held by the same initiator. The fields associated with a Release service action match fields of the active persistent reservation. Sending of a PERSISTENT RESERVATION OUT command that specifies a Release service action when no persistent reservation exists from that initiator does not result in an error.
PAGE 164
SCSI Description +, 9 " () * *+ A PERSISTENT RESERVATION OUT command with a successful Pre-empt service action removes all persistent reservations for all initiators that have been registered with the Service action Reservation key specified in the PERSISTENT RESERVATION OUT command’s parameter list. A persistent reservation is also established for the pre-empting initiator.
PAGE 165
SCSI Description +, 9 " () * *+ A PERSISTENT RESERVATION OUT command with a Pre-empt & Clear service action removes all persistent reservations for all initiators that have been registered with the Service action Reservation key specified in the PERSISTENT RESERVATION OUT command’s parameter list. It also establishes a persistent reservation for the pre-empting initiator.
PAGE 166
SCSI Description +, Table 5-121 Persistent Reservation Type Codes and Their Meanings 9 " () * *+ READS: Shared; any application client on any initiator may execute commands that perform transfers from the disk to the initiator. 0h READ Shared WRITES: Prohibited; any command from any initiator that performs a transfer from the initiator to the disk results in a reservation conflict.
PAGE 167
SCSI Description +, 9 " () * *+ READS: Shared; any application client on any initiator may execute commands that perform transfers from the disk to the initiator.
PAGE 168
SCSI Description Table 5-123 PERSISTENT RESERVATION OUT Parameter List-Field Descriptions " &* 2, " () * *+ This field contains an 8-byte token that is provided by the application client to the device server to identify which initiator is the source of the PERSISTENT RESERVATION OUT command. The device server verifies that the Reservation Key in the PERSISTENT RESERVATION OUT command matches the Reservation Key that is registered for the initiator from which the command is received.
PAGE 169
SCSI Description Table 5-124 Device Server Interpretation of Service and Scope Value # 9 ( @*) ) *+ ! ( @ *+ / 5 2 9 + 2 9 # 9 ( @*) ) *+ 22+= , )+ 5 Register Ignored Ignored Valid Ignored Reserve LU Valid Ignored Ignored Reserve Extent Valid Ignored Extent Valid Reserved Element Valid Ignored Ignored Release LU Valid Ignored Ignored Release Extent Valid Ignored Extent Valid Release Element Valid Ignored Element Valid Clear
PAGE 170
SCSI Description < : 263 "%% (* 2:713 The READ (6) command requests that data be transferred from the drive to the initiator. The amount of data transferred is specified by the transfer length field. The starting point is specified by the logical sector address. The data format and field descriptions are shown in Table 5-125 and Table 5-126 respectively.
PAGE 171
SCSI Description < 2 :3 "%% (* 2 713 The READ (10) command requests that data be transferred from the drive to the initiator. The amount of data transferred is specified by the transfer length field. The starting point is specified by the logical sector address. The data format and field descriptions are shown in Table 5-127 and Table 5-128 respectively.
PAGE 172
SCSI Description < 9 "%% (* 2 13 The READ BUFFER command is used in conjunction with the WRITE BUFFER command. It allows the initiator to gain access to the data storage areas within the drive's controller. In particular, these two commands are used to check the integrity of the buffer-initiator data path, independent of the media, typically for fault isolation in the event of a failure.
PAGE 173
SCSI Description &* 2, Mode Table 5-130 READ BUFFER Command-Field Descriptions " () * *+ Four modes are supported by the drive; Combined Header and Data, Data Only, Descriptor Only, and Read Data from Echo Buffer. The permissible values for Buffer ID, Buffer Offset, are as follows: Combined Header and Data – In this mode, data to be transferred is preceded by a 4byte header that contains the buffer capacity.
PAGE 174
SCSI Description < "%% (* 2 <13 The READ CAPACITY command reports formatted capacity and track-boundary information. The data format and field descriptions are shown in Table 5-131 and Table 5-132 respectively.
PAGE 175
SCSI Description < "%% (* 2 :3 2 ;13 The READ DEFECT DATA (10) command directs the drive to report defect information about the drive’s medium. Refer to the FORMAT UNIT command for information about defects. The data format and field descriptions are shown in Table 5-134 and Table 5-135 respectively.
PAGE 176
SCSI Description Table 5-135 READ DEFECT DATA (10) Command-Field DescriptionREAD DEFECT &* 2, " () * *+ When the value is 0, the returned data does not include the Primary Defect List. PList When the value is 1, the returned data includes the Primary Defect List. The defects are returned in ascending order. When the value is 0, the returned data does not include the Grown Defect List. When the value is 1, the returned data includes the Grown Defect List. The defects are returned in order of occurrence.
PAGE 177
SCSI Description Table 5-138 Defect List Header -Data Format * 5 > ' 0 Reserved 2-3 PList $ Reserved 1 &* 2, % Plist Glist Defect List Format Defect List Length Table 5-139 Defect List Header-Field Descriptions " () * *+ Primary Defect List. When the value is 0, the returned data does not include the Primary Defect List. When the value is 1, the returned data includes the Primary Defect List. GList Grown Defect List.
PAGE 178
SCSI Description < < "%% (* 2 3 29;13 The READ DEFECT DATA (12) command directs the drive to report defect information about the drive’s medium. Refer to the FORMAT UNIT command for information about defects. The data sent to the host in the command’s data-in buffer transfer consists of a four-byte Defect List header (Table 5-144 and Table 5-145), followed by any Defect Descriptors (Table 5-142 and Table 5-143).
PAGE 179
SCSI Description &* 2, Table 5-141 READ DEFECT DATA (12) Command-Field Description " () * *+ When the value is 0, the returned data does not include the Primary Defect List. PList When the value is 1, the returned data includes the Primary Defect List. The defects are returned in ascending order. When the value is 0, the returned data does not include the Grown Defect List. When the value is 1, the returned data includes the Grown Defect List. The defects are returned in order of occurrence.
PAGE 180
SCSI Description Table 5-144 Defect List Header-Data Format * 5 > ' 0 1 % $ Reserved Plist Glist Reserved 4-7 Defect List Length PList GList Reserved 2-3 &* 2, Defect List Format Table 5-145 Defect List Header-Field Descriptions " () * *+ Primary Defect List. When the value is 0, the returned data does not include the Primary Defect List. When the value is 1, the returned data includes the Primary Defect List. Grown Defect List.
PAGE 181
SCSI Description "%% (* 2 13 < 6 The READ LONG command is used in conjunction with the WRITE LONG command to allow the initiator to issue raw reads and writes of physical data blocks, but address them as logical blocks with an assumed sector length of 512 bytes. These two commands are used to verify the correction capability of the drive’s ECC and to create a known kind and location to verify the drive’s recovery and bad sector handling policies.
PAGE 182
SCSI Description 5 5-118 * > ' % $ 514 - 515 EDC (8 Bits) 516 - 562 45 ECC Bits + 8 Pad Bits Maxtor Atlas 10K III
PAGE 183
SCSI Description < ; "%% (* 2 713 The READ SKIP MASK command allows the initiator to condition the function of the READ commands to allow only selected data to be transferred over the SCSI interface. A READ SKIP MASK command precedes a READ (10) command; the READ (10) command must be linked to the READ SKIP MASK command or the skip mask is lost and a CHECK CONDITION status is returned. The data format and field descriptions are shown in Table 5-149 and Table 5-150 respectively.
PAGE 184
SCSI Description < 7 9 "%% (* 2:;13 The REASSIGN BLOCKS Command reassigns one or more logical blocks to a spare location(s) set aside for this purpose and records the reassignments in the Grown Defect List. No command-specific Control Descriptor Block fields affect the processing performed for this command. The list of Logical Block Addresses to reassign is supplied in the REASSIGN BLOCKS Defect List passed in the command's data-out buffer transfer.
PAGE 185
SCSI Description Table 5-154 REASSIGN BLOCKS Defect Descriptor-Data Format * > ' % $ 5 0-3 Defect Logical Block Address The drive returns a CHECK CONDITION status if it cannot complete the command. If this happens because the drive ran out of spare sectors, the drive sets the sense key to MEDIUM ERROR and the additional sense code to NO DEFECT SPARE LOCATION AVAILABLE. The sense key and additional sense key are set appropriately for any other cause.
PAGE 186
SCSI Description < > "%% (* 2 13 The RECEIVE DIAGNOSTIC RESULTS command fetches the results of the last SEND DIAGNOSTIC command sent to the drive. The drives support the diagnostic pages listed in Table 5-155.
PAGE 187
SCSI Description < > &&"#! * ' ("+ tics Pages Page (00h) Table 5-158 shows the format of the Supported Diagnostics Pages page. Table 5-158 Supported Diagnostics Pages Page-Data Format * 5 > ' % $ 0 Page Code (00h) 1 Reserved 2-3 Page Length (0002h) 4 Supported Diagnostics Pages Page (00h) 5 Translate Address Page (40h) To obtain the Supported Diagnostics Pages list, the initiator must: 1.
PAGE 188
SCSI Description < > # (+ ! **# ++ 2 :13 The Translate Address Page allows the initiator to translate a logical sector address, physical address, or physical bytes for an index address into any one of the other formats. The address to be translated is passed to the drive with the SEND DIAGNOSTIC command, and the results are returned to the initiator by the RECEIVE DIAGNOSTIC RESULTS command.
PAGE 189
SCSI Description &* 2, Supplied Format RAREA Table 5-160 Translate Address Page-Field Descriptions " () * *+ The Supplied Format field specifies the format of the following Translate Address field. Must be 000b, which specifies the LBA format. Reserved Area is not used. ' ( An Alternate Sector bit of 1 indicates that the translated address from the SEND DIAGNOSTIC command is physically located in an alternate sector on the disk.
PAGE 190
SCSI Description < : 263 "%% (* 2 ;13 The RELEASE and the RESERVE commands are used for contention resolution in multiple-initiator systems. The RELEASE command is used to release a previously reserved logical unit. The drive will not return an error if the initiator attempts to release a reservation that is not currently valid. The data format and field descriptions are shown in Table 5-161 and Table 5-162 respectively.
PAGE 191
SCSI Description < 2 :3 "%% (* 2<;13 The RELEASE and the RESERVE commands are used for contention resolution in multiple-initiator systems. The RELEASE (10) command is used to release a previously reserved logical unit. The drive will not return an error if the initiator attempts to release a reservation that is not currently valid. The data format and field descriptions are shown in Table 5-163 and Table 5-164 respectively.
PAGE 192
SCSI Description Table 5-164 RELEASE (10) Command — Field Descriptions " () * *+ &* 2, 3rdPty Third Party Release allows an initiator to release a logical unit that was previously reserved. If the value in this field is 0, third party release is not requested. If 3rdPty = 1, then the device server will release the specified logical unit, but only if the initiator ID, 3rdPty bit, and third party device ID are identical when compared to the RESERVE command that established the reservation.
PAGE 193
SCSI Description < "%% (* 2 13 The REPORT DEVICE IDENTIFIER command requests that the device server send device identification to the application client. The data format and field descriptions are shown in Table 5-165 and Table 5-166 respectively.
PAGE 194
SCSI Description Table 5-166 REPORT DEVICE IDENTIFIER Command Descriptor Block-Field Descriptions &* 2, " () * *+ Service Action Allocation Length 2 & 3. Any other value forces Check Condition, Illegal Request. If the length is not sufficient to contain all of the parameter data, the first portion of the data is returned, and this is not considered to be an error. The actual length of the parameter data is available in the Identifier Length field in the parameter data.
PAGE 195
SCSI Description < "%% (* 2 :13 The REPORT LUNS command requests that the peripheral device logical unit numbers of known logical units in the target disk be sent to the applications client. The command only returns information about the logical units to which commands may be sent. The data format and field descriptions are shown in Table 5-169 and Table 5-170 respectively.
PAGE 196
SCSI Description < - "%% (* 2: 13 The REQUEST SENSE command causes the drive to transfer detailed sense data to the initiator. The drive maintains sense data on an individual initiator basis. The data format and field descriptions are shown in Table 5-172 and Table 5-173 respectively.
PAGE 197
SCSI Description < (+ ! A ' C' '!$ Sense data is available if the initiator is responsible for an in-progress FORMAT UNIT command (Format Progress Indication is available in the Format Progress Indication Bytes). The drive returns a sense key of NO SENSE and an additional sense code of NO ADDITIONAL SENSE INFORMATION if it has no sense data available for the initiator.
PAGE 198
SCSI Description < ! ! + &"#!'( The drive returns CHECK CONDITION status for a REQUEST SENSE command only to report errors specific to the command when: • A non-zero reserved bit is detected in the Command Descriptor Block. • A drive malfunction prevents return of the sense data. For Parallel SCSI disk drives, the drive also returns CHECK CONDITION status for a REQUEST SENSE command to report errors specific to the command when an unrecovered parity error is detected on the data bus.
PAGE 199
SCSI Description < (+ ! "#% ! 0"# ##"# "* ;:1 (* ##"# "* ; 1 The sense data format for error code 70h (current error) and error code 71h (deferred error) is shown in Table 5-174; the data fields are defined in Table 5-175. The Supported Sense Keys are described in Table 5-176 and the field contents in Table 5177. The Supported Additional Sense Codes and Sense Code Qualifiers are described in Table 5-178 and the Sense-Key Specific Field Contents in Table 5-179.
PAGE 200
SCSI Description &* 2, " ?* * *+ The Information field contains the following device-type or command-specific information: 1) The unsigned logical sector address associated with the sense key. Information 2) The difference between the requested length and the actual length in either bytes or sectors, as determined by the command. This difference is called the residue. 3) A description of each of the drive's supported commands definition for this field is contained in Table 5-177.
PAGE 201
SCSI Description ( / 5 +, NO SENSE 0h RECOVERED ERROR 1h NOT READY 2h MEDIUM ERROR 3h HARDWARE ERROR 4h ILLEGAL REQUEST 5h Table 5-176 Supported Sense Keys " () * *+ There is no specific sense key information to be reported for the designated logical unit. This is the case for a successful command or a command that received CHECK CONDITION or COMMAND TERMINATED status because one of the following bits is set to 1: File Mark, EOM, or ILI.
PAGE 202
SCSI Description +99 , FORMAT UNIT Table 5-177 Sense Key Information Field Contents ( / 5 &* 2, + ( RECOVERED ERROR ILLEGAL REQUEST The address of the first bad sector encountered during the format operation. This sector, and all other bad sectors found during a format operation, are automatically reallocated by the drive. The first illegal defect descriptor encountered in the Defect Descriptor List.
PAGE 203
SCSI Description Table 5-178 Supported Additional Sense Codes and Sense Code Qualifiers (in Hex) ( ( ( 0+ 5 (( 0 * 0 / 5 +, .
PAGE 204
SCSI Description ( ( ( 0+ 5 / 5 +, . 2*?* 0x01 Rec Error * 0 0x15 0x81 DER EC_REC_SERVO_WNOK Servo Write Not OK assertion: recovered. 0x15 0x82 DER EC_REC_SERVO_RNOK Servo Read Not OK assertion: recovered. 0x15 0x83 DER EC_REC_SPK_ADR_ERR Spoke address error: recovered. Data synchronization mark error: recovered. 0x16 0x00 DER EC_REC_DATA_SYNC_ ERR 0x16 0x83 DER EC_REC_SPOKE_SYNC_ ERR Spoke synchronization mark error: recovered.
PAGE 205
SCSI Description ( ( ( 0+ 5 / 5 +, . 2*?* 0x01 Rec Error (( 0 * 0 0x17 0xA3 SERVO EC_REC_SVO_DEFECT_ WEDGE2 0x17 0xA4 SERVO EC_REC_SVO_MAPPED_WED Map'd Wdg-1st - recovered. GE 0x17 0xA5 SERVO EC_REC_SVO_MAPPED_WED Map'd Wdg-2nd - recovered. GE2 0x17 0xA6 SERVO EC_REC_SVO_ID_ERR Id Err-1st - recovered. 0x17 0xA7 SERVO EC_REC_SVO_ID_ERR2 Id Err-2nd - recovered. Defective Wdg-2nd - recovered.
PAGE 206
SCSI Description ( ( ( 0+ 5 / 5 +, .
PAGE 207
SCSI Description ( ( ( 0+ 5 / 5 +, . 2*?* 0x02 Not Ready 0x03 Medium Error (( 0 * 0 0x19 0x01 SYS EC_NOT_READY_ UNKNOWN_LIST Drive Not Ready, Unknown defect list. 0x19 0x03 SYS EC_NOT_READY_BAD_ G_LIST Drive Not Ready, Bad grown defect list. 0x31 0x00 HDA EC_NOT_READY_FMT_ CORP Drive Not Ready, Format corrupted. 0x31 0x01 HDA EC_FMT_FAILED_IBM Format command failed (IBM). 0x40 0x80 HW EC_NOT_READY_ UNKNOWN_HW Drive Not Ready, Unknown HW problem.
PAGE 208
SCSI Description ( ( ( 0+ 5 / 5 +, . 2*?* 0x03 Medium Error 0x04 Hdwe Error 5-144 (( 0 * 0 0x15 0x83 DER EC_SPK_ADR_ERR Spoke address error 0x16 0x00 DER EC_DATA_SYNC_ERR Data synchronization mark error. 0x16 0x83 DER EC_SPOKE_SYNC_ERR Spoke synchronization mark error. 0x19 0x00 BBR EC_BBR_BAD_MCS MCS is invalid. 0x19 0x01 SYS EC_UNKNOWN_LIST Unknown defect list. 0x19 0x03 SYS EC_BAD_G_LIST Bad grown defect list.
PAGE 209
SCSI Description ( ( ( 0+ 5 / 5 +, . 2*?* 0x04 Hdwe Error (( 0 * 0 0x06 0x86 RECAL EC_RCL_SK_BIAS Seek failure during Bias Calibration. 0x06 0x87 RECAL EC_RCL_SK_KTJ Seek failure during KT/J Calibration. 0x06 0x88 RECAL EC_RCL_SK_PES Seek failure during PES Calibration. 0x06 0x89 RECAL EC_RCL_SVO_NOT_RDY Recal servo not ready. 0x06 0x8A RECAL EC_RCL_SW_POINT_ PARAM_BAD Switch Point calibration results are bad.
PAGE 210
SCSI Description ( ( ( 0+ 5 / 5 +, . 2*?* 0x04 Hdwe Error 5-146 (( 0 * 0 0x06 0x9E RECAL EC_RCL_FAIL_IN_PESLIN Data consistency failure during PES Linearization 0x06 0x9F RECAL EC_RCL_ERASE_BAND_ NOSYNC Couldn't find sync in the erase band & couldn't restart servo. 0x06 0xA0 RECAL EC_RCL_ERASE_BAND_ SERVODEAD Went servo dead after completing a seek. 0x06 0xA1 RECAL EC_RCL_ERASEBAND SYNCINVALID Successful sync not in the erase band.
PAGE 211
SCSI Description ( ( ( 0+ 5 / 5 +, . 2*?* 0x04 Hdwe Error (( 0 * 0 0x09 0xA4 SERVO EC_SVO_MAPPED_ WEDGE Svo:Map'd Wdg-1st. 0x09 0xA5 SERVO EC_SVO_MAPPED_ WEDGE2 Svo:Map'd Wdg-2nd. 0x09 0xA6 SERVO EC_SVO_ID_ERR Svo:Id Err-1st. 0x09 0xA7 SERVO EC_SVO_ID_ERR2 Svo:Id Err-2nd. 0x09 0xA8 SERVO EC_SVO_UNKNOWN_ WEDGE_ERR Svo:Unknown Wdg Err-1st. 0x09 0xA9 SERVO EC_SVO_UNKNOWN_ WEDGE_ERR_2 Svo:Unknown Wdg Err-2nd.
PAGE 212
SCSI Description ( ( ( 0+ 5 / 5 +, . 2*?* 0x04 Hdwe Error 5-148 (( 0 * 0 0x40 0x8C DER EC_LBA_ERR LBA mismatch error. 0x40 0x8D HW EC_ETM_FAILURE ETM test failure, drive failed to spin. 0x40 0x8E HW EC_TARGET_RPM_ FAILURE Could not achieve target RPM. 0x40 0xA0 SVOT EC_SVOT_FAIL_INCMP Test did not complete. 0x40 0xA1 SVOT EC_SVOT_FAIL_CMP Test completed successfully, but failed.
PAGE 213
SCSI Description ( ( ( 0+ 5 / 5 +, . 2*?* 0x05 Illegal Request (( 0 * 0 0x1A 0x00 SCSI EC_PARAMETER_OVR Parameter list length error. 0x20 0x00 CMD EC_INV_COMMAND Invalid command. ETM can't run with motor spinning 0x20 0xFE SCSI EC_INV_ETM_CMD 0x20 0xFF MISC EC_SS_CODE_BAD Selfscan code not loaded or bad 0x21 0x00 CMD EC_INV_LBA Invalid LBA. 0x24 0x00 CMD EC_INV_CDB Invalid bits set in CDB. 0x25 0x00 CMD EC_INV_LUN Invalid LUN specified.
PAGE 214
SCSI Description ( ( ( 0+ 5 / 5 +, . 2*?* 0x0B 0x01 SMART 0x28 0x00 0x29 0x01 0x06 Unit Attn 5-150 * 0 EC_EWS_UTrippedThermal SMART overtemperature trip SCSI EC_NRDY_2_RDY Not Ready to Ready transition SCSI EC_RESET_OCCURRED Power-On-Reset occurred. 0x29 0x02 SCSI EC_RESET_SCSI_BUS SCSI bus reset occurred. 0x29 0x03 SCSI EC_RESET_BUS_DEV Bus device reset message.
PAGE 215
SCSI Description ( ( ( 0+ 5 / 5 +, . 2*?* 0x07 Data Protect 0x27 0x00 RDWR 0x09 Vendor Specific 0x81 0x00 0x00 0x0B Aborted Cmd 0x0E (( 0 * 0 EC_DATA_WR_PROTECT Data write protected. SCSI EC_OVRLAP_DF_WE New command overlaps deferred write error. 0x00 SCSI EC_ABORT Aborted.
PAGE 216
SCSI Description ( / 5 Table 5-179 Sense-Key Specific Field Contents &* 2, * * + *+ + ( ILLEGAL REQUEST Field pointer bytes (Table 5-180) Illegal field's offset (in the Command Descriptor Block or data-out buffer transfer parameters). NOT READY Progress Indication (Table 5-182) Indicates progress of FORMAT UNIT Command.
PAGE 217
SCSI Description Table 5-181 ILLEGAL REQUEST Sense Key Field Pointer Bytes\Field Descriptions &* 2, " () * *+ SKSV Sense-Key Specific Valid C/D Command/Data. When the value in this field is 1, the Field Pointer identifies the first byte in error in the Command Descriptor Block. When 0, the Field Pointer identifies the first byte in error in the data parameters sent by the initiator in the data-out buffer transfer. BPV Bit Pointer Valid.
PAGE 218
SCSI Description Table 5-185 Table 5–90 MEDIUM ERROR or RECOVERED ERROR Sense Key - Retry Count -Field Descriptions &* 2, 5-154 " () * *+ SKSV Sense-Key Specific Valid Retry Count The number of times an I/O operation was retried Maxtor Atlas 10K III
PAGE 219
SCSI Description < < 263 "%% (* 2 613 The RESERVE and the RELEASE commands are used for contention resolution in multiple-initiator systems. The RESERVE command is used to reserve a logical unit. The data format and the field descriptions are described in Table 5-186 and Table 5187 respectively.
PAGE 220
SCSI Description < 6 2 :3 "%% (* 2<613 The RESERVE and the RELEASE commands are used for contention resolution in multiple-initiator systems. The RESERVE command is used to reserve a logical unit. If RESERVE (10) is used, then RELEASE (10) is also used. The data format and the field descriptions are described in Table 5-188 and Table 5-189 respectively. The data format for the Event Descriptors is described in Table 5-190.
PAGE 221
SCSI Description Table 5-190 Extent Descriptors-Data Format * 5 > 0 ' % $ Reserved RelAdr Reservation Type (MSB) 1-3 Number of Blocks (LSB) (MSB) 4-7 Logical Block Address (LSB) The Reservation Type field defines the type of reservation in effect for the extent being reserved. Available types of reservations are shown in Table 5-191. ! ( @ *+ 5 Table 5-191 Reservation Types " () * *+ 00b READ shared.
PAGE 222
SCSI Description < ; "%% (* 2: 13 The REZERO UNIT command sends the heads to cylinder 0 (Logical Block Address 0). Once the heads are on the track, they are not guaranteed to stay at cylinder 0; periodic calibrations may send them to a different cylinder.
PAGE 223
SCSI Description < 7 263 "%% (* 2:913 The SEEK (6) command uses a 6-byte Command Descriptor Block to request the drive to send the drive heads to the requested Logical Block Address. The drive responds by placing the heads at the correct Logical Block Address. When the heads are at the specified Logical Block Address, they are not guaranteed to stay in that position since periodic calibrations may send them to a different cylinder. The data format is shown in Table 5-195.
PAGE 224
SCSI Description < > 2 :3 "%% (* 2 913 The SEEK (10) command uses a 10-byte Command Descriptor Block to request the drive to send the drive heads to the requested Logical Block Address. The drive responds by placing the heads at the correct Logical Block Address. When the heads are at the specified Logical Block Address, they are not guaranteed to stay in that position since periodic calibrations may send them to a different cylinder. The data format is shown in Table 5-196.
PAGE 225
SCSI Description < : "%% (* 2 13 The SEND DIAGNOSTIC command sends a diagnostic page to the drive. Refer to the RECEIVE DIAGNOSTICS RESULTS command for a description of the diagnostic pages and the use of the diagnostic commands. The Supported Diagnostic Page List (Table 5-199) and Translate Page List (Table 5-200) can be sent with this command. Table 5-197 shows the SEND DIAGNOSTIC CDB data format and Table 5-198 shows the field descriptions.
PAGE 226
SCSI Description &* 2, " () * *+ SelfTest If the PF bit is 0 and the SelfTest bit is 1, the drive runs its self-test routine. GOOD status is returned to the initiator if the self-test passes. CHECK CONDITION status is returned along with any available sense data if the self-test fails. This field is ignored if the PF bit is 1. DevOnl UnitOfl Parameter List Length Any value in this field is ignored by the drive. Any value in this field is ignored by the drive.
PAGE 227
SCSI Description < : &&"#! * ' ("+!') '+! Table 5-199 shows the Supported Diagnostic Page List that can be supplied with a SEND DIAGNOSTIC command to request that the Supported Diagnostic Page List be returned after the next RECEIVE DIAGNOSTIC RESULTS command.
PAGE 228
SCSI Description < : # (+ ! **# ++ Table 5-200 shows the Translate Address Page that can be supplied with a SEND DIAGNOSTIC command to request that the Translate Address Page be returned after the next RECEIVE DIAGNOSTIC RESULTS command.
PAGE 229
SCSI Description < "%% (* 2 13 The SET DEVICE IDENTIFIER command requests that the device identifier information in the logical unit be set to the value send via the SET DEVICE IDENTIFIER command’s parameter list. The data format and field descriptions are shown in Table 5-201 and Table 5-202 respectively. Upon successful completion of a SET DEVICE IDENTIFIER command, a Unit Attention is generated for all initiators except the one that issued the command.
PAGE 230
SCSI Description < "%% (* 2 913 The START STOP UNIT command enables or disables the logical unit for media access operations. This command gives the initiator remote control over drive spinup and spin-down. The data format and field descriptions are shown in Table 5-205 and Table 5-206 respectively. A jumper (or backplane connection) is used to select the spin-up mode. When configured for remote control of spin-up (Option 3), the drive requires a START STOP UNIT Command to spin up.
PAGE 231
SCSI Description < , , "%% (* 2 <13 The SYNCHRONIZE CACHE command ensures that all logical blocks, within the specified range in the drive's cache memory, have their most recent data value recorded on the physical medium. If more recent data for a logical block, within the specified range, exists in the cache memory than on the physical medium, then the logical blocks from the cache memory is written to the physical medium.
PAGE 232
SCSI Description < "%% (* 2::13 The TEST UNIT READY command returns GOOD status if the drive is ready to receive medium access commands (that is, READ, WRITE, VERIFY, etc.). If the drive is not ready to receive medium access commands, it returns CHECK CONDITION status with the appropriate sense keys and qualifiers. The data format is described in Table 5-209.
PAGE 233
SCSI Description < < "%% (* 2 13 The VERIFY command verifies the data on the medium for the Logical Block Address range specified. The data format and field descriptions are shown in Table 5210 and Table 5-211 respectively.
PAGE 234
SCSI Description < 6 263 "%% (* 2: 13 The WRITE (6) command requests that the drive write initiator-supplied data to the medium. The Command Descriptor Block for the WRITE (6) command is shown in Table 5212; Table 5-213 describes the data fields.
PAGE 235
SCSI Description < ; 2 :3 "%% (* 2 13 The WRITE (10) command requests that the drive write initiator-supplied data to the medium. The data format and field descriptions are shown in Table 5-214 and Table 5-215 respectively.
PAGE 236
SCSI Description < 7 "%% (* 2 13 The WRITE AND VERIFY command writes host-supplied data to the unit and verifies it was written correctly. The data format and field descriptions are shown in Table 5-216 and Table 5-217 respectively.
PAGE 237
SCSI Description < > 9 "%% (* 2 913 The WRITE BUFFER and the READ BUFFER commands allow the initiator to gain access to the data storage areas within the drive controller. These commands are used to check the integrity of the buffer-initiator data path independent of the storage medium, typically for fault isolation. The commands can be used to verify the caching policies of the controller or other kinds of debug work.
PAGE 238
SCSI Description Table 5-219 WRITE BUFFER Command-Field Descriptions " () * *+ &* 2, Mode Four modes are supported by the drive; Combined Header and Data, Data Only, Download Microcode and Save, and Write Data from Echo Buffer. The permissible values for Buffer ID, Buffer Offset are as follows: Combined Header and Data – In this mode, the data to be transferred is preceded by a 4byte header that contains reserved bytes that must be set to 0.
PAGE 239
SCSI Description < <: "%% (* 2 13 The WRITE LONG and READ LONG commands allow the initiator to issue raw reads and writes of physical sectors addressed as logical blocks with an assumed sector length of 512 bytes. These commands are used to verify the correction capability of the drive's ECC and to create defects of a known kind and location to verify the drive's recovery and bad sector handling policies.
PAGE 240
SCSI Description < < "%% (* 2 13 The WRITE SAME command requests that the drive write the single sector of data transferred by the initiator to the medium multiple times. The data format and field descriptions are shown in Table 5-222 and Table 5-223 respectively.
PAGE 241
SCSI Description < < "%% (* 2 13 The WRITE SKIP MASK command allows the initiator to condition the function of the WRITE commands to allow only selected data to be transferred over the SCSI interface. A WRITE SKIP MASK command precedes a WRITE (10) command; the WRITE (10) command must be linked to the WRITE SKIP MASK command or the skip mask is lost and a CHECK CONDITION status is returned. The data format and field descriptions are shown in Table 5-224 and Table 5-225 respectively.
PAGE 242
SCSI Description 5-178 Maxtor Atlas 10K III
PAGE 243
) ! "! #! " $ This chapter provides descriptions of many of the features incorporated in the Maxtor Atlas 10K III hard disk drive family. 6 Maxtor Atlas 10K III disk drives provide unequaled quality and performance. They are designed to improve the performance of high-end workstations, file servers, and storage systems. Among their features are the following: • 18.3 GB, 36.7 GB, or 73.
PAGE 244
Feature Descriptions • Advanced Ultra160 SCSI-LVD, Ultra320 SCSI-LVD, Ultra2-LVD, and Ultra-SE with 68-pin wide connector or 80-pin SCA-2 connector • Superior data integrity: •352-bit Reed-Solomon quad-burst ECC provides fast on-the-fly correction for small errors and robust software-based correction for larger errors •EDC internal protection from SCSI bus to media Many of these features are described in this chapter.
PAGE 245
Feature Descriptions 6 89 , The drive supports write-back caching. In this case, writes are considered complete when the data is loaded into the cache, before it is written to the media. This allows the host to go on to other tasks, while the drive assumes responsibility for the data and ensuring that it is written to media as soon as possible. If write-back caching is employed, it is recommended that an uninterruptible power source (UPS) be provided for optimal data security.
PAGE 246
Feature Descriptions 6 ; A 10,000 rpm rotation speed yields an average latency of 3 ms. 6 7 9 Embedded servo information is written in a spoke configuration on every track, on every disk surface. The spokes (or headers) consist of quadrature analog patterns and digital address data. The digital portions of the spoke data are read and used to locate the desired track, spoke, and head number.
PAGE 247
Feature Descriptions 6 > ! )!"# ") !'"( ##"# #"! )!'"( In any SCSI disk drive, bad blocks may be reallocated. However, a power failure or unrecoverable data could threaten data integrity during a block reallocation. The reallocation and defect list storage algorithms prevent a reallocation from being lost due to a power failure. Once a reallocation starts, the information about the data block to be moved is stored on the media.
PAGE 248
Feature Descriptions 6 9 In banded recording, the disk is divided into multiple bands (also called partitions, notches, or bit-zoned areas). Starting at the inner band, each band further out has more blocks per track (a higher recording frequency). This use of multiple-frequency recording increases the capacity of the drive. 6 Maxtor has incorporated a number of unique options into the drive.
PAGE 249
Feature Descriptions 6 < "? # ( 0 +! 2 3 The disk drive performs a self-diagnostic test immediately at power up. Both the Fault LED and a Busy LED briefly illuminate during spin-up as a lamp test. If the drive passes the self-tests (and the spin-up jumper is installed), it spins up and performs further diagnostics on the Head Disk Assembly (HDA). The drive indicates “not ready” until the HDA tests are completed successfully.
PAGE 250
Feature Descriptions 6 < " (+ Maxtor implements multiple LOG SENSE pages which logically group together parameters related to disk and subsystem activities. Monitoring this data enables users to observe drive performance and possibly predict failures. 6 6 The mode pages control all error recovery. Any error recovery that is enabled is attempted without host intervention.
PAGE 251
Feature Descriptions If the block's data is unrecoverable, the block may or may not be replaced according to the state of the RUEE bit in the Maxtor Vendor Unique Page. If the RUEE bit is set, the bad data is relocated with a Bad Data Mark appended to it.
PAGE 252
Feature Descriptions 6 7 The DIFFSENS signal in the SCSI bus defines the current operating mode of the SCSI bus. A level below +.5 volts defines a single-ended bus. A level between +.7 and +1.9 volts defines an LVD bus. A level above +2.4 volts defines a High Voltage Differential (HVD) bus. Before LVD was introduced, HVD was simply called Differential SCSI. All single-ended-only devices connect the DIFFSENS signal to ground. On an LVD bus, the terminators drive the DIFFSENS signal to +1.
PAGE 253
Feature Descriptions 6 7 With Ultra160 and Ulra320 SCSI interfaces, Maxtor has introduced a new method of clocking data on the SCSI bus. This method, called Double Transition (DT) clocking, uses both the rising and falling edges of the REQ and ACK signals to clock data into the receiving device.
PAGE 254
Feature Descriptions 6 7 , When transferring data with DT clocking on the SCSI bus, a significantly improved form of error checking, cyclic redundancy checking (CRC) is used instead of the traditional parity checking. With CRC checking, the device sending data generates a four-byte CRC character based on the contents of the bytes being transferred. The receiving device also generates a CRC character as it receives the bytes.
PAGE 255
Feature Descriptions 6 7 ; # (+%'!! # # 8 "%& (+ !'"( ?'!1 !C )4 This is an open-loop method of compensating for some of the signal loss that is most severe on the first part of a signal’s transition. 6 7 7 # (('( ")4 2 3 FRC is used to improve integrity of the clock signal by removing inter-symbol interference (ISI). By having a clock running at a constant neutralized. The free running clock is restricted for use with DT information unit transfers at 320 megabytes per second.
PAGE 256
Feature Descriptions 6 > $+! % "(+'* # !'"(+ It is not possible for the suppliers of various system components (e.g., targets, initiators, backplanes, terminators) to guarantee that a system can operate under “Hot Swap Case 4" conditions. Therefore, the system integrator bears the responsibility for ensuring that the system can meet “Hot Swap Case 4" operational criteria. There are two metrics key to ensuring “Hot Swap Case 4" tolerance: 1.
PAGE 257
Feature Descriptions 6 > 9 , If additional information is required, refer to the following documentation: • SCSI-3 SPI (SCSI Parallel Interface), revision 15, now ANSI Standard No. X3.253.1993 - Device Insertion/Removal classes • SCSI-3 Fast-20, revision 6, now ANSI Standard No. X3.277.
PAGE 258
Feature Descriptions 6-16 Maxtor Atlas 10K III
PAGE 259
* + , - "! !"! ! Appendix A is a synopsis of SCSI commands, associated pages, messages, sense keys and status codes used in this manual. Note: Reserved fields in CDBs and Parameters have a value of 0; Reserved fields in states and other parameters sent to an initiator are set to 0. 8 B 8 @ 'A (! #%'(" " $ Table A-1 contains the SCSI-3 equivalent terms for common terms used in SCSI-2 documents.
PAGE 260
Appendix A "%% (*+ (* ++ + Table A-2 and Table A-3 contains the SCSI-3 commands and messages and their corresponding op codes.
PAGE 261
Appendix A SCSI-3 Quick Reference – Messages (( 0 ( (03 +, 6 -7 ABORT ABORT TAG BUS DEVICE RESET CLEAR QUEUE COMMAND COMPLETE CONTINUE I/O PROCESS DISCONNECT EXTENDED MESSAGE HEAD OF QUEUE TAG IDENTIFY IGNORE WIDE RESIDUE INITIATOR DETECTED ERROR LINKED COMMAND COMPLETE LINKED COMMAND COMPLETE w/FLAG MESSAGE PARITY ERROR MESSAGE REJECT NO OPERATION ORDERED QUEUE TAG PARALLEL PROTOCOL REQUEST QUICK ARBITRATION AND SELECTION RELEASE RECOVERY SAVE DATA POINTER SIMPLE QUEUE TAG SYNCHRONOUS
PAGE 262
Appendix A Device Identification Disk Error Recovery Counters Disconnect-Reconnect Early Warning Status ECC Counters and Summary Firmware Revision Format Device Format Status Implemented Operating Definition Last n Error Events Medium Types Supported Non-Medium Error Counter Notch and Partition Peripheral Device Power Condition Maxtor Manufacturing Number Maxtor-Unique Port Control Page Read Error Counter Read-Write Error Recovery Rigid Disk Geometry SCSI Bus Events Seek Performance Summary Servo Events Co
PAGE 263
Appendix A (+ $+ Table A-5 lists the sense keys. SCSI-3 Quick Reference – Sense Keys ( / 5( NO SENSE RECOVERED ERROR NOT READY MEDIUM ERROR HARDWARE ERROR ILLEGAL REQUEST UNIT ATTENTION DATA PROTECT VENDOR SPECIFIC ABORTED COMMAND MISCOMPARE < ! ! + ( +, 0 1 2 3 4 5 6 7 9 B E "* + Table A-6 lists the status codes.
PAGE 264
Appendix A A-6 Maxtor Atlas 10K III
PAGE 265
* + ! !# " ! " $ ! "! !"! ! This appendix provides information about the INQUIRY command’s Negotiated Rate Information Page that is not provided in Section 5.11.2.7. Specifically, it provides the codes and meanings for the Transfer Period Factor field (byte 4) and a table that explains the allowable settings for the QAS, DT, and IU fields (bits 2, 1, and 0, respectively, of byte 7).
PAGE 266
Appendix B 32h - FFh Transfer period = the period factor x 4 (Fast-5 data is latched using a transfer period of less than or equal to 1020 ns and greater than or equal to 200 ns). Transfer Period Factor Field Values When PARL = 0 +, " () * *+ 00h – 09h Reserved. 0Ah Transfer period = 25 ns (Fast-40 data is latched every 25 ns). 0Bh Transfer period = 30 ns (Fast-40 data is latched every 30 ns).
PAGE 267
". ACCESS – (v) Read, write, or update information stored on a disk or other medium. (n) The operation of reading, writing, or updating stored information. ACCESS TIME – The interval between the time a request is made by the system and the time the data is available from the drive. Includes the seek time, rotational latency, and command processing overhead time. (See also seek, rotational latency, and overhead.) ACTIVE I/O PROCESS– An I/O process that is currently in execution (not queued).
PAGE 268
Glossary BEZEL – A plastic panel that extends the face of a drive so that it covers a computer’s drive bay opening. The bezel usually contains a driveactivity LED. Also known as the faceplate. CLEAN ROOM – An environmentally controlled dust-free assembly or repair facility in which hard disk drives are assembled or can be opened for internal servicing. BIT – Abbreviation for binary digit. A binary digit may have one of two values—1 or 0.
PAGE 269
Glossary CRC – Cyclic Redundancy Check. An error detection procedure that identifies incomplete or faulty data in each sector. CYLINDER – When disks are placed directly above one another along the shaft, the circular, vertical “slice” consisting of all the tracks located in a particular position. DMA – Direct Memory Access. A process for transferring data directly to and from main memory, without passing through the CPU.
PAGE 270
Glossary EXTENDED CONTINGENT ALLEGIANCE – A condition generated by a target and announced with a INITIATE RECOVERY message. The mode is used when multi-step extended error recovery procedures are required to prevent interference as from other initiators in a multi-initiator system. See also contingent allegiance. EXTERNAL DRIVE – A drive mounted in an enclosure separate from the computer system enclosure, with its own power supply and fan, and connected to the system by a cable.
PAGE 271
Glossary , HALF-HEIGHT – Standard drive size equivalent to half the vertical space of a 5 1/4inch drive. HARD DISK – A type of storage medium that retains data as magnetic patterns on a rigid disk, usually made of an iron oxide or alloy over a magnesium or aluminum platter. Because hard disks spin more rapidly than floppy disks, and the head flies closer to the disk, hard disks can transfer data faster and store more in the same volume.
PAGE 272
Glossary command or a group of linked commands. An I/O process normally ends with a BUS FREE phase following a COMMAND COMPLETE or a RELEASE RECOVERY message. 5 JUMPER – A tiny box that slips over two pins on a circuit board, connecting the pins electrically. Some board manufacturers use Dual In-Line Package (DIP) switches instead of jumpers. KILOBYTE (K) – A unit of measure consisting of 1,024 (210) bytes.
PAGE 273
Glossary MICROPROCESSOR – The integrated circuit chip that performs the bulk of data processing and controls the operation of all of the parts of the system. A disk drive also contains a microprocessor to handle all of the internal functions of the drive and to support the embedded controller. MICROSECOND (µs) – One millionth of a second (.000001 sec.). MILLISECOND (ms) – One thousandth of a second (.001 sec.). MTBF – Mean Time Between Failure.
PAGE 274
Glossary PERIPHERAL – A device added to a system as an enhancement to the basic CPU, such as a disk drive, tape drive or printer. PHYSICAL FORMAT – The actual physical layout of cylinders, tracks, and sectors on a disk drive. PHYSICAL SECTOR –See sector, data. PLATTER – Common term referring to the hard disk. POH – Power On Hours.
PAGE 275
Glossary that multiple disks can be used to increase the amount of stored material, and that once removed, the disk can be stored away to prevent unauthorized use. RLL – Abbreviation for Run Length Limited. An advanced method used to encode (or compress) data for storage on a disk. RLL encoding stores almost 50 percent more data than MFM (Modified Frequency Modulation). RLL code improves MFM code by encoding data bits in groups rather than singly. Many encoding schemes are possible.
PAGE 276
Glossary SCSI ID – The bit-significant representation of the SCSI address referring to one of eight (or one of sixteen) data lines. SERVO SURFACE – A separate surface containing only positioning and disk timing information but no data. SECTOR – On a PC hard drive, the minimum segment of track length that can be assigned to store information. On Macintosh and UNIX drives, sectors are usually grouped into blocks or logical blocks that function as the smallest data unit permitted.
PAGE 277
Glossary SOFT ERROR – A faulty data reading that does not recur if the same data is reread from the disk, or corrected by ECC. Usually caused by power fluctuations or noise spikes. SOFT-SECTORED – Old time-based method of indicating the start of each sector on a disk. Soft-sectored drives require that location instructions be located in the data fields. (See also hard-sectored.) SPINDLE – The drive’s center shaft, on which the hard disks are mounted.
PAGE 278
Glossary % unformatted capacity – The total number of bytes of data that can be put on a disk drive. Formatting the disk requires approximately 20% of this space to record servo data, addresses, boundary definitions, and timing information. After formatting, user data can be stored on the remaining disk space, known as the formatted capacity. VOICE COIL – A fast and reliable actuator motor that works like a loud speaker, with the force of a magnetic coil causing a proportionate movement of the head.
PAGE 279
#!/ % #')+ 4-pin DC power connector 3-21 512-byte sectors available 4-3 abbreviations 1-2 acoustics 4-7 Active Notch 5-59 actuator 4-6 Adapter, 50-pin to 68-pin 2-4 Additional Sense Codes 5-135, 5-139 Additional Sense Length 5-136 air temperature 3-25 Allocation Length 5-10, 5-38, 5-122, 5- 131, 5-132, 5-134 altitude2 4-8 ASCII Implemented Operating Definition 5-26 ASCII Implemented Operating Definition Page 5-26 audience definition 1-1 auto head-park method 4-2 average write 4-2 AWRE 5-14, 5-48,
PAGE 280
Index Defective Sector Number 5-18 Disconnect Time Limit 5-50 Disconnect-Reconnect Page 5-50 disk errors 4-3, 4-11 disks 4-1 DOS 4-3 Drive Step Rate 5-80 drop 4-10 ECC 5-12, 5-14, 5-37, 5-49, 5-52, 5- , hard reset time 4-4 HARDWARE ERROR 5-138 hardware options 3-6 hardware requirements 2-4 Head Offset Count 5-49 host system 3-7 hot plugging 6-11 humidity 4-8 117, 5-175 encoding method 4-1 Ending Boundary 5-59 environmental conditions 4-8 error correction method 4-2 Error Reporting 5-6 error type 4-
PAGE 281
Index 5-121, 5-136, 5-138, 5-158, 5-159, 5-160, 5-167, 5-169, 5-170, 5-171, 5-172, 5-175, 5-177 low 4-3 low-level format 4-3 Number of Blocks 5-45, 5-167 Number of Cylinders 5-80 Number of Heads 5-80 orientation 3-23 outside zone 4-1 manual organization 1-1 mating connectors 3-21 Maximum Burst Size 5-50 maximum effective areal density 4-2 maximum linear density 4-1 maximum number of errors 4-11 maximum screw torque 3-24 maximum specifications 4-4 MEDIUM ERROR 5-17, 5-121, 5-137, 5-138, 5-153 Medium R
PAGE 282
Index 30 Queue Algorithm Modifier 5-57 Returned Logical Block Address 5-110 REZERO UNIT Command 5-158 Rigid Disk Geometry 5-80 Rigid Disk Geometry Page 5-80 Rotational Offset 5-81 rotational speed 4-1 RPL Status Change 5-136 R/W heads 4-1 READ (10) Command 5-107 READ (6) Command 5-88, 5-106 READ BUFFER Command 5-108, 5- SCSI configurations 2-1 SCSI ID bits 3-8 SCSI interface configurations 3-3 SCSI-2 specification 1-3 SEEK (10) Command 5-160 SEEK (6) Command 5-159 Segment Number 5-135 SEND DIAGNO
PAGE 283
Index Supported Diagnostics Pages Page 5-123 Supported Sense Keys 5-137 SURF 5-79 SYNCHRONIZE CACHE Command 5- 167 Synchronous Data Transfer 5-22 TARGET TRANSFER DISABLE 5-22 temperature 4-8 terminology 1-2 TEST UNIT READY Command 5-168 Third Party Device ID 5-126, 5-128, 5- 155, 5-156 timing specifications 4-4 total tracks 4-1 total user sectors 4-1 Track Skew Factor 5-79 tracks density 4-1 Transfer Length 5-10, 5-54, 5-106, 5- 107, 5-117, 5-170, 5-171, 5-172, 5-175 transferred data 4-4 transient vo
PAGE 284
Index I-6 Maxtor Atlas 10K III