Ciprico Disk Array . . . . . . . . 6500 Disk Array User’s Guide Ciprico Inc.
©1996 by Ciprico Inc. All rights reserved. No part of this publication may be reproduced or transmitted in any form, or by any means, electronic or mechanical (including photocopying and recording), or by any information storage or retrieval system, without the permission of Ciprico Inc. Printed in the United States of America Rimfire is a trademark of Ciprico Inc.
Chapter Page 4 Programmer Reference
Preface This guide contains all the information needed to successfully install, operate, and maintain Ciprico’s 6500 Disk Array subsystems in standard configurations. If you need more technical information for non-standard applications, refer to the Ciprico 6500 Controller Board Technical Reference (available from Ciprico). The standard 6500 array contains eight data drives and one parity drive. The array is equipped with a Wide Ultra SCSI interface, providing transfer rates up to 40MB per second.
Page ii Preface Revision History Publication Number 21020690 21020690 Revision Date Description A B 09.96 11.96 First release Updated for production release Figure 1 Revision History Note The information in this document is subject to change without notice. 21020690 B Warning: Fire and Shock Hazards To prevent the hazards of fire and electrical shock, do not expose this product to any type of moisture.
Preface Electromagnetic Compatibility Page iii United States This equipment has been tested and found to comply with the limits of a Class A computing device in accordance with the specifications set forth in Part 15 of the FCC Rules. If this equipment does cause interference to radio or television reception, which can be determined by turning the equipment on and off, use the equipment in another location and/or utilize an electrical outlet different from that used by the receiver.
Page iv Preface Safety Listings and Certification This symbol on the nameplate means that the product is “listed” by Underwriters Laboratory Inc. Ciprico 6500 Disk Array subsystems have been tested and found to be in accordance with Paragraph 3 of the “Equipment Safety Law” of June 24, 1968, the version that is presently valid. This symbol on the nameplate means that the product is “listed” by Underwriters Laboratory Inc. and has been certified to Canadian standards.
Table of Contents Page v Table of Contents 1 Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . In This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Notational Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Warning: Fire and Shock Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents Page vi 2 3 21020690 B Power Voltage Selection Switch . . . . . . . . . . . . . . . . . . . . . 1-9 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 In This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Installation Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Step 1. Move Array to Operation Site. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents Page vii RPT AS RECOVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TEMP WARNING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TEMP CRITICAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AUTO MEGOMETER (ON/OFF) . . . . . . . . . . . . . . . . . . . ARRAY NAME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14 3-14 3-14 3-14 3-14 ARRAY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FIRMWARE . . .
Table of Contents Page viii 4 21020690 B Maintenance, Troubleshooting & Hardware Replacement. . . . . . . . 4-1 In This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Periodic Maintenance Guidelines. . . . . . . . . . . . . . . . . . . . . . . . Checking Enclosure Cooling Fan Operation . . . . . . . . . . . . Checking Power Supply Cooling Fan Operation. . . . . . . . . Cleaning the Enclosure Air Filter . . . . . . . . . . . . . . . . . . . .
Table of Contents Page ix Drive Failure Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . To Turn Off Alarm, Press SELECT Key. . . . . . . . . . . . . . . 4-22 4-22 Disabling a Failed Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23 Disk Drive Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24 Disk Drive Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Drive Setup Requirements. . . . . . . . . . . . . . . . . . . .
Table of Contents Page x 21020690 B 6500 Disk Array User’s Guide
1 Description
Chapter 1 Description Page 1 - 2 In This Chapter In This Chapter This chapter describes the functions, features, options, and primary components of Ciprico’s 6500 Disk Array subsystems.
Chapter 1 Description 6500 Disk Array Functions and Application 6500 Disk Array Functions and Application Page 1 - 3 When high-bandwidth software applications require disk performance rates faster than those provided by single-disk storage systems, Ciprico’s 6500 Disk Array can provide economical yet powerful performance, redundancy, and capacity. The 6500 Disk Array provides transfer rates up to 40MB/second.
Chapter 1 Description Page 1 - 4 Features and Options Features and Options SCSI Compatibility Controller Board Disk Drives 21020690 B • Conforms to SCSI-2 standards. • 8- or 16-bit data transfers on host interface. • Single-ended or differential SCSI interface. • Compatible with industry-standard SCSI adapters and drivers, including all Ciprico SCSI host bus adapters. SCSI-2 to ATA RAID-3 disk array controller with a 16-bit host SCSI interface and 9 ATA interfaces.
Chapter 1 Description Features and Options Page 1 - 5 the parity drive also significantly increases data availability—the length of time before data is lost due to drive failure. 16-Bit Wide Synchronous Transfer The controller has SCSI-P connectors (per the SCSI-2 standard) that permit 16bit wide synchronous data transfers over a single SCSI-P cable on the host interface. The 6500 is a Wide Ultra SCSI device (SCSI-3), transferring data at up to 40 MB/second.
Chapter 1 Description Page 1 - 6 Primary Components Primary Components The “Primary Components” diagram on page 1-7 illustrates the 6500 disk array primary components described below. Enclosure The standard 6500 enclosure consists of a front cover and an enclosure cabinet, built in a desktop configuration. (An optional rack-mounting kit is available.) Air Filter An air filter is located between the disk drives and the front of the enclosure. It must be periodically cleaned to ensure proper air flow.
Chapter 1 Description Primary Components Page 1 - 7 Figure 3 Primary Components 6500 Disk Array User’s Guide 21020690 B
Chapter 1 Description Page 1 - 8 Primary Components Display/ Operation Panel As shown below, the 6500 display/operation panel includes a liquid crystal display (LCD) and six membrane control switches. Figure 4 Display/Operation Panel Liquid Crystal Display (LCD) The 6500 display/operation panel’s LCD indicates real-time array status and error conditions, and is used to enter a wide range of setup parameters and operating commands.
Chapter 1 Description Rear Panel Switches and Connectors Rear Panel Switches and Connectors Page 1 - 9 This figure illustrates the rear panel components described below. Figure 5 Rear Panel—6500 Disk Array SCSI Connectors Two identical 68-pin SCSI-P connectors on the array's controller board enable connection to a SCSI bus from the host.
2 Installation
Chapter 2 Installation Page 2 - 2 In This Chapter In This Chapter This chapter describes a typical installation of the 6500 Disk Array subsystem. Note Instructions for attaching a rack-mount kit to the enclosure are included with the rack-mount kit.
Chapter 2 Installation Installation Procedure Installation Procedure Step 1. Move Array to Operation Site Step 2. Mount Enclosure Page 2 - 3 Install the 6500 disk array as follows: Move the array to its intended place of operation. Verify that power and communication cables will be accessible, and that the array will be installed in a properly ventilated, climate-controlled environment with adequate work space around the unit.
Chapter 2 Installation Page 2 - 4 Installation Procedure Step 5. Set Array Input Voltage Switch Before you connect the array’s power cord to an AC outlet, you must set the array power supply’s input voltage selection switch to the proper position: the “115” setting for 100-120 VAC, or the “230” setting for 200-240 VAC. The power supply’s input voltage selection switch is located between the two power cord connectors on the rear panel of the array.
Chapter 2 Installation Installation Procedure Page 2 - 5 Drive Status Codes The following codes on the display/operation panel indicate drive status: Code O S G T R U X ? F Drive Status OFF Spinning Good (Tested OK) Testing Ready Unformatted for Array Out of Order Unknown Status Failed Table 1: Drive Status Codes Step 9. Configure the Array • At array reset or power-up, a Built-In Self-Test (BIST) will run.
3 Display/Operation Panel
Chapter 3 Display/Operation Panel Page 3 - 2 In This Chapter 21020690 B In This Chapter This chapter describes the options and functions available with the 6500 Disk Array display/operation panel. The panel is used to observe current array status, change operating parameters, and manually control the array.
Chapter 3 Display/Operation Panel Controls and Indicators Controls and Indicators Page 3 - 3 The display/operation panel includes an LCD display and six membrane control switches. Figure 7 6500 Display/Operation Panel • The LCD displays 2-line by 16-character messages that include directional arrows showing you which switches to use for navigation through the menu or for function selection.
Chapter 3 Display/Operation Panel Page 3 - 4 Operation Guidelines Operation Guidelines Array PowerUp and Built-In Self-Test (BIST) When the array is powered up, the display/operation panel turns on and a BuiltIn Self-Test (BIST) is executed. Text descriptions for most of the tests briefly appear on the panel as the tests are performed. This process takes approximately 10 seconds, after which the drives in the array are started and begin to spin up.
Chapter 3 Display/Operation Panel Operation Guidelines Changing or Selecting a Menu Option Page 3 - 5 Display/operation panel options or parameters currently in use by the array are identified by an asterisk (*) on the display. Change or select a menu option as follows: 1. Use the directional arrows on the keypad to navigate to the menu option that you want to select or change. 2. Press and release the left or right arrow until the selection you want appears on the display. 3.
Chapter 3 Display/Operation Panel Page 3 - 6 Operation Guidelines Figure 9 Menu Structure (1 of 5—Array Options) 21020690 B 6500 Disk Array User’s Guide
Chapter 3 Display/Operation Panel Operation Guidelines Page 3 - 7 Figure 10 Menu Structure (2 of 5—Array Options) 6500 Disk Array User’s Guide 21020690 B
Chapter 3 Display/Operation Panel Page 3 - 8 Operation Guidelines Figure 11 Menu Structure (3 of 5—Array Info & Rebuild) 21020690 B 6500 Disk Array User’s Guide
Chapter 3 Display/Operation Panel Operation Guidelines Page 3 - 9 Figure 12 Menu Structure (4 of 5—Format & Drives) 6500 Disk Array User’s Guide 21020690 B
Chapter 3 Display/Operation Panel Page 3 - 10 Operation Guidelines Figure 13 Menu Structure (5 of 5—Log Pages) 21020690 B 6500 Disk Array User’s Guide
Chapter 3 Display/Operation Panel ARRAY OPTIONS ARRAY OPTIONS Page 3 - 11 From )81&7,21 6(/(&7 , use the left/right arrow keys to select $55$< 237,216 (see “Menu Structure (1 of 5—Array Options)” on page 3-6 and “Menu Structure (2 of 5—Array Options)” on page 3-7).
Chapter 3 Display/Operation Panel Page 3 - 12 ARRAY OPTIONS PASSWORD The password option allows you to set or clear the array's password protection feature. When set, the password is a user-entered series of four display/ operation panel keystrokes—any key can be used except the RESET key. Enter a New Password Enter a new password as follows: 21020690 B 1. Press the down arrow, then press the right or left arrow until )81&7,21 6(/(&7 $55$< 237,216 appears. 2. Press the down arrow. 3.
Chapter 3 Display/Operation Panel ARRAY OPTIONS Page 3 - 13 Clear Password Clear a password as follows: 1. Press the down arrow, then press the right or left arrows until )81&7,21 6(/(&7 $55$< 237,216 is displayed. 2. Press the down arrow. 3. Press the right or left arrows until the 3$66:25' menu is displayed. 4. Press the down arrow to view the &/($5 3$66:25' menu. If (17(5 3$66:25' is displayed, press the right key once to show &/($5 3$66:25' 5. Press the down arrow. 6.
Chapter 3 Display/Operation Panel Page 3 - 14 ARRAY OPTIONS SET DEFAULTS Setting the 6(7 '()$8/76 to <(6 returns the array to its factory default settings for :5,7( 3527(&7 81,7 $77(17,21 $/$50 537 $6 5(&29(5 $55$< 1$0( 7(03 :$51,1* 7(03 &5,7,&$/ , and 0(*20(7(5. The default for this option is 12.
Chapter 3 Display/Operation Panel ARRAY INFORMATION ARRAY INFORMATION Page 3 - 15 From )81&7,21 6(/(&7 , use the left/right arrow keys to select $55$< ,1)250$7,21 (see “Menu Structure (3 of 5—Array Info & Rebuild)” on page 3-8).
Chapter 3 Display/Operation Panel Page 3 - 16 ARRAY INFORMATION CAPACITY Displays the logical block number of the last data block in the array. A value followed by ' indicates a decimal number; a value followed by + indicates a hex number. To calculate the capacity of the array, add one to the number displayed. For example, a display with ' in an array formatted with 512 as the sector size indicates that the array's capacity is 4,207,837 blocks of 512 bytes each.
Chapter 3 Display/Operation Panel ARRAY INFORMATION Page 3 - 17 The Synchronous Offset represents the number of bytes a SCSI ACK signal may lag a REQ signal. 16 (10H) is the maximum Offset allowed. Although communications allow up to a 16 byte offset, each byte is always acknowledged. For additional information, see the SCSI-2 specification. MEGoMETER (DISPLAY) The 0(*O0(7(5 displays the transfer rate in megabytes per second.
Chapter 3 Display/Operation Panel Page 3 - 18 REBUILD From )81&7,21 6(/(&7, use the left/right arrow keys to select the following 5(%8,/' functions (see “Menu Structure (3 of 5—Array Info & Rebuild)” on REBUILD page 3-8). Use the display/operation panel rebuild options listed below as described in Chapter 4 of this guide. Caution If a disk in the array fails, replace the drive and perform a rebuild as soon as possible. A rebuild can be performed without taking the array off-line.
Chapter 3 Display/Operation Panel FORMAT Page 3 - 19 From )81&7,21 6(/(&7 , use the left/right arrow keys to select )250$7 (“Menu Structure (4 of 5—Format & Drives)” on page 3-9). FORMAT Each disk in the array is written with a special “system sector” during formatting that holds information about the array. For this reason, an array must be formatted before it can be used. All arrays are formatted completely before shipment.
Chapter 3 Display/Operation Panel Page 3 - 20 DRIVES From )81&7,21 6(/(&7 , use the left/right arrow keys to select '5,9(6 (see “Menu Structure (4 of 5—Format & Drives)” on page 3-9). DRIVES These menus let you view the current drive status, disable a disk drive, and view information on the drive's model number. DRIVE STATUS The read-only '5,9( 67$786 option typically displays 5($'< for each drive. Any of the drive status options listed below could be displayed, however.
Chapter 3 Display/Operation Panel DRIVES DRIVE INFO Page 3 - 21 The '5,9( ,1)2 menu provides access to two submenus which describe the model number of each drive used in the array and the firmware revision of each drive. Press the down arrow key to advance to the first information menu. DRIVE n MODEL This option displays the model number of the drive. Use the right and left arrow keys to move to the next drive in the array. DRIVE n REV This option displays the drive's firmware revision.
Chapter 3 Display/Operation Panel Page 3 - 22 LOG PAGES LOG PAGES From F81&7,21 6(/(&7 , use the left/right arrow keys to select /2* 3$*(6 (see “Menu Structure (5 of 5—Log Pages)” on page 3-10). These selections provide access to drive error information contained in SCSI log pages. Three menus in this category ((5525 &2817(56 '5,9( (55256, and '5,9( )$,/85(6) give access to “pages” of SCSI log entries.
Chapter 3 Display/Operation Panel LOG PAGES Page 3 - 23 ENTRY k / SENSE KEY: yyH This item gives you the two-digit hexadecimal sense key code for the error entry. Every error will have a sense key code. The sense keys report generic categories of error and exception conditions. Initiators typically use sense keys for high-level error recovery procedures. ENTRY k / ASC: yyH This item displays the two-digit hexadecimal code for the ASC code that applies to the error entry. (ASC = Additional Sense Code.
Chapter 3 Display/Operation Panel Page 3 - 24 LOG PAGES ENABLE LOG This item lets you enable or disable the logging function by choosing 21 or 2)). The factory default setting is 21. If you cycle power, the (1$%/( /2* item will come up in the condition it was in when you turned off the array. RESET LOG This command sets all log counters back to zero and sets functions to their default conditions. When you invoke this command, all entries for drive errors and drive failures will be erased.
4 Maintenance, Troubleshooting & Hardware Replacement
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Page 4 - 2 In This Chapter 21020690 B In This Chapter This chapter contains information you will need for Ciprico 6500 Disk Array maintenance, troubleshooting, and hardware replacement: • Periodic maintenance guidelines • Failure detection and troubleshooting guidelines • Hardware field-replaceable units (FRUs) 6500 Disk Array User’s Guide
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Periodic Maintenance Guidelines Periodic Maintenance Guidelines Checking Enclosure Cooling Fan Operation Page 4 - 3 Under normal conditions, the 6500 array requires minimal periodic maintenance. Preventive maintenance consists of periodically checking the operation of cooling fans and cleaning the enclosure’s air filter.
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Page 4 - 4 Periodic Maintenance Guidelines Cleaning the Enclosure Air Filter To maintain optimum air flow in the array enclosure, clean the air filter twice per year, or more frequently if the environment is dusty or the array is installed in an exposed area. To clean the enclosure air filter: 1. Remove the front cover and top cover from the array enclosure (see the figure below). 2.
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Failure Detection and Troubleshoot-ing Guidelines Failure Detection and Troubleshooting Guidelines Page 4 - 5 These topics are discussed on the following pages: • Failure indicators • Built-In Self Test (BIST) failures • Drive test failures • Disk drive failures • Over-temperature failures • Troubleshooting guidelines 6500 Disk Array User’s Guide 21020690 B
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Page 4 - 6 Failure Detection and Troubleshoot-ing Guidelines Failure Indicators When a failure occurs on the array, an audible alarm sounds, if enabled, and the display/operation panel reports the nature of the failure condition. Audible Alarm To turn off the audible alarm, press any key on the display/operation panel (except RESET). Write down any error codes that are displayed.
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Failure Detection and Troubleshoot-ing Guidelines Built-In Self Test (BIST) Failures Page 4 - 7 During power-up, or after you push the RESET button on the display/operation panel, the array will automatically run a Built-In-Self-Test.
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Page 4 - 8 Failure Detection and Troubleshoot-ing Guidelines To choose the Continue response to a BIST error, press the left arrow key. To choose the Loop response to a BIST error, press the right arrow key. When your option, either /223 or &217, is displayed, press SELECT to implement that option. /223 indicates that the array will repeat that particular test if SELECT is pressed.
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Failure Detection and Troubleshoot-ing Guidelines Drive Test Failures Page 4 - 9 When the Built-In Self-Test (BIST) described previously has finished, a firmware-based drive test is executed that tests the integrity and functionality of each drive channel, including the capacity to rebuild and generate parity.
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Page 4 - 10 Failure Detection and Troubleshoot-ing Guidelines Overtemperature Failures A temperature sensor mounted on the array’s controller board signals overtemperature status. Each status is triggered at a different temperature. Indicators • Display/operation panel displays one of the following messages: 7(03 :$51,1* (user-definable, 45 degrees C default) 7(03 &5,7,&$/ (standard: 50 degrees C) • Audible alarm sounds (if enabled).
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Failure Detection and Troubleshoot-ing Guidelines Troubleshooting Guidelines Page 4 - 11 When a component fails in a 6500 disk array, it is most often easily traced and fixed. There are occasions, however, when the problem may not be so straightforward, e.g., when unusual applications produce inconsistent results.
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Page 4 - 12 Hardware Field-Replaceable Units (FRUs) Hardware FieldReplaceable Units (FRUs) Field Replacement Guidelines The remainder of this chapter describes Field-Replaceable Units (FRUs) and replacement procedures for Ciprico's 6500 arrays.
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Hardware Field-Replaceable Units (FRUs) Page 4 - 13 Figure 17 Field Replaceable Units (FRUs) 6500 Disk Array User’s Guide 21020690 B
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Page 4 - 14 Enclosure Top Cover Removal Enclosure Top Cover Removal Replacement 1. Power down the array. 2. Remove AC power cord. 3. Unlock and open front cover of enclosure (see the figure below). 4. Remove the screws in the enclosure’s front surface that secure the top cover to the enclosure. 5. Lift the front of the top cover. 6.
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Controller Board Removal Controller Board Removal Replacement Page 4 - 15 1. Perform top cover removal procedure as described previously. 2. Disconnect the array from the SCSI bus. Remove terminator (if used). 3. Remove jack screws for SCSI cables and disconnect all power, drive, and display cables connected to the controller board. 4. Remove the screw at the center of the controller board.
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Page 4 - 16 Display/Operation Panel Removal Display/ Operation Panel Removal Replacement 1. Perform top cover removal procedure as described previously. 2. Disconnect the display/operation panel’s ribbon cable from the controller board at connector J0401 (see the figure below). Also remove the cable from the clip on the side of the enclosure. 3. Remove screws that hold the panel housing to the front of the array. 4.
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Power Supply Removal Power Supply Removal Page 4 - 17 1. Perform top cover removal procedure as described previously. 2. Disconnect power supply from power switch (see the figure below). Note wire positions on power switch terminals (see “Power Switch Removal” later in this chapter). Then remove four power supply lugs from these terminals. 3. Remove nut that secures power supply ground wire to enclosure.
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Page 4 - 18 Power Supply Removal 6. Remove four screws that attach the power supply to the rear of the enclosure (see the figure below). 7. Unfasten the plastic retaining straps holding the drive power cables in place. 8. Lift the power supply out of the array enclosure. Figure 22 Power Supply Removal—Mechanical Disconnection Replacement Reverse the steps above.
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Cooling Fan Removal Cooling Fan Removal Page 4 - 19 Each 6500 array contains two cooling fans. To remove either of them, perform the following steps. 1. Perform top cover removal procedure as described previously. 2. Disconnect the fan’s two-wire power connector from its receptacle in the controller board. (See connectors J1801 and J1802 in the figure below.) Figure 23 Cooling Fan Removal/Replacement Replacement 3.
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Page 4 - 20 Power Switch Removal Power Switch Removal 1. Perform top cover removal procedure as described previously. 2. Disconnect power switch from power supply as follows: Note orientation of switch: the “l” marker is up; the “O” marker is down. Note wire positions on switch, then remove the four wires from their connectors on the power switch. 3.
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Drive Failure, Replacement, and Rebuilding Drive Failure, Replacement, and Rebuilding Page 4 - 21 The following pages contain information you will need to handle 6500 array drive failures, drive replacement, and drive rebuilding. When all 9 drives are installed in the subsystem, the failure of one drive does not affect performance. The failure is reported through the display/operation panel. An alarm will sound if enabled.
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Page 4 - 22 Drive Failure, Replacement, and Rebuilding Drive Failure Indications When a drive failure occurs, the following events will follow: • The display/operation panel will immediately change from 21 /,1( (or assigned array name) 67$786 2. to in which ) denotes the position of the disabled drive (in this example, drive 3—the third drive from the right).
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Disabling a Failed Disk Drive Disabling a Failed Disk Drive Page 4 - 23 This procedure allows you to disable one drive in the array. The array stops operations on the selected drive and allows it to be physically removed. Note The array prevents any drive from being disabled if another drive in the array is currently failed or disabled. The procedure in the following example disables Drive 5. 1.
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Page 4 - 24 Disk Drive Removal Disk Drive Removal Disk Drive Replacement 1. Perform top cover removal procedure as described previously. 2. Identify the drive to be replaced. As viewed from the top front of the array, the drives are numbered as follows (from left to right): 9 8 7 6 5 4 3 2 1 3. Detach the drive’s power cable and data cable. (Detach the data cable from both the controller board and the unit.) 4.
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Types of Rebuilds Types of Rebuilds Page 4 - 25 The next task required is to rebuild data onto the new drive in the array. In this nine-disk array, eight drives are used for data storage and the ninth for parity checking. No matter which drive is replaced, it is possible to use the remaining drives to reconstruct the missing information.
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Page 4 - 26 Initiating a Rebuild Initiating a Rebuild Once a drive has failed and been replaced, you must rebuild the data to regain array redundancy. To perform a rebuild, follow these steps: 1. Press the down arrow key on the display/operation panel to get into the menu system. The top line of the display will now read )81&7,21 6(/(&7. 2. Press the right or left arrow key until you see 5(%8,/'.
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Initiating a Rebuild Drive Error Code During Rebuild Page 4 - 27 If a drive other than the drive being rebuilt encounters an error during the rebuild operation, the error code shown below appears, with the “X” position displaying the number of the affected drive: If a drive being rebuilt encounters an error during the rebuild operation, the error code shown above appears without the “X” drive identifier displayed.
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Page 4 - 28 Formatting the Array Formatting the Array A drive that is not formatted for the array (one lacking a 6500 system sector) will have a U displayed as its status. All arrays are formatted completely before shipment. If a message like the following example (a message containing a U for the status of any drive) is displayed, you will have to format the array.
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Formatting the Array Page 4 - 29 Note The format process begins for the entire array. Depending on the array configuration, formatting can take from 10 to 20 minutes to complete. The table below identifies how to interpret the display/ operation panel messages during the format process.
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Page 4 - 30 Updating Firmware Updating Firmware Replacing EEPROMs This procedure describes how to swap new chips containing updated firmware with the chips currently installed on the controller board. The array is equipped with a matched pair of 32-pin EEPROMs. One is labeled EVEN and the other ODD. 1. Perform top cover removal procedure as described previously in this chapter.
Chapter 4 Maintenance, Troubleshooting & Hardware Replacement Updating Firmware Page 4 - 31 7. Apply power to the array. 8. Observe the display/operation panel power-up sequence. When the array has completed the BIST (Built-In Self Test), you should see the 67$786 2. message.
Index Numerics B 6500 Disk Array controller board technical reference . . . i description. . . . . . . . . . . . . . . . . . 1-1, 1-3 features . . . . . . . . . . . . . . . . . . . . . . . 1-4 installation. . . . . . . . . . . . . . . . . . . . . 2-1 primary components . . . . . . . . . . . . . 1-6 rack-mount . . . . . . . . . . . . . . . . . . . . 1-5 BIST . . . . . . . . . . . . . . . . . . . . . . . . . 2-5, 3-4 error handling. . . . . . . . . . . . . . . . . . . 4-8 error message . . . . . . . . . .
Index ii display/operation panel1-3, 1-6, 1-8, 2-4, 2-5 controls and indicators . . . . . . . . . . . .3-3 description . . . . . . . . . . . . . . . . . . . . .3-3 initial display . . . . . . . . . . . . . . . . . . .3-4 LCD display . . . . . . . . . . . . . . . . . . . .3-3 operation . . . . . . . . . . . . . . . . . . . . . . .3-2 removal/replacement . . . . . . . . . . . .4-16 drive determining failure . . . . . . . . . . . . . .4-21 disabling . . . . . . . . . . . . . . . . . 3-20, 4-23 errors. . . . .
Index iii L LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8 log enable . . . . . . . . . . . . . . . . . . . . . . . 3-24 reset . . . . . . . . . . . . . . . . . . . . . . . . . 3-24 log pages . . . . . . . . . . . . . . . . . . . . 3-10, 3-22 password . . . . . . . . . . . . . . . . . . . . . . . . 3-12 clearing. . . . . . . . . . . . . . . . . . . . . . . 3-13 selection . . . . . . . . . . . . . . . . . . . . . . 3-12 power ON/OFF switch. . . . . . . . . . . . . . . 1-9 power supply . .
Index iv SCSI-2 . . . . . . . . . . . . . . . . . . . . . . . 1-4, 1-5 SCSI-3 . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5 SCSI-P . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9 connectors. . . . . . . . . . . . . . . . . . 1-5, 2-3 sector size . . . . . . . . . . . . . . . . . . . . . . . .3-19 SELECT switch . . . . . . . . . . . . 1-8, 3-3, 3-5 set defaults . . . . . . . . . . . . . . . . . . . . . . .3-14 set thresholds . . . . . . . . . . . . . . . . . . . . .3-24 single-ended . .
21020690 B
