SATA 6Gb/s 1.8” SSD Manual The SATA Element SSD is a non-volatile, solid-state storage device. With its Serial ATA interface and industry-standard form factors, it is a drop in replacement for hard disk drives. The Element SSD delivers extremely high levels of performance, reliability and ruggedness for I/O intensive or environmentally challenging applications. Manual PSFS1XXXXGXXXX Revision B7 www.vikingtechnology.
Revision History Date 3/26/12 Revision A 5/01/12 A1 6/05/12 A2 6/07/12 A3 9/27/12 A4 10/17/12 A5 4/9/13 B Description Release of new format. Changed supply voltage to +/-5%. Deleted part numbers VRFS11100GAIPSTF (1.8”). Added notes for operating temperature. Updated SMART attribute table. Corrected SMART threshold table. Added “Ambient” to temperature range, Added info on Immediate Standby timings. Checked by Added part number VRFS11240GFCyMz. Revised mechanical drawing and SMART attributes.
Date 10/22/13 1/2/14 Manual PSFS1XXXXGXXXX Revision B7 www.vikingtechnology.
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Ordering Information: Element 1.8” SSD Family Viking High Performance Solid-State Drive Ordering Information Part Number VRFS11100GFCxMyz VRFS11100GFCxMyz VRFS11200GFCxMyz VRFS11200GFCxMyz VRFS11400GFCxMyz VRFS11400GFCxMyz VRFS11100GFCxEyz VRFS11200GFCxEyz VRFS11400GFCxEyz VRFS11025GFCxSyz VRFS11050GFCxSyz VRFS11100GFCxSyz VRFS11025GFIxSyz8 VRFS11050GFIxSyz8 VRFS11100GFIxMyz VRFS11120GFIxMyz VRFS11240GFIxMyz VRFS11120GKIxMyz VRFS11240GKIxMyz Form Factor SSD 1.8” 5.0mm SSD 1.8” 5.0mm SSD 1.8” 5.0mm SSD 1.
Viking’s solid state drives are available in Enterprise and Client versions: Enterprise SSD – An Enterprise SSD contains hardware and firmware that detect and manage power failures. This allows the drive to flush the controller cache and harden data to NAND flash. No data is lost or corrupted. Client SSD – A Client SSD does not include power failure detection or management features.
Product Picture(s) Manual PSFS1XXXXGXXXX Revision B7 www.vikingtechnology.
Table of Contents 1 INTRODUCTION 11 1.1 Features 11 1.2 Block Diagram 14 1.3 SATA Interface for VRFS1xGA, VRFS1xGJ 15 1.4 SATA Interface for VRFS1xGF, VRFS1xGK, VRFS1xGM 15 2 PRODUCT SPECIFICATIONS 15 2.1 Capacity-LBA 15 2.2 Performance 16 2.3 Timing 2.3.1 STANDBY IMMEDIATE Command 18 18 2.4 Electrical Characteristics 2.4.1 Absolute Maximum Ratings 2.4.2 Supply Voltage 2.4.3 Supply Current 2.4.4 Power Consumption 19 19 19 19 19 2.5 Environmental Conditions 2.5.
4.1 3.3V 1.8” SSD Signal and Power Description Tables 29 4.2 Hot Plug Support 30 5 COMMAND SETS 30 5.1 ATA Commands 5.1.1 48-Bit Address Command Set 5.1.2 ATA General Feature Command Set 5.1.3 Device Configuration Overlay Command Set 5.1.4 General Purpose Log Command Set 5.1.5 Host Protected Area Command Set 5.1.6 Power Management Command Set 5.1.7 Security Mode Feature Set 5.1.8 S.M.A.R.T. Support 5.1.9 S.M.A.R.T. Attributes 5.1.10 Attribute Sector 5.1.11 Threshold Sector 5.1.12 S.M.A.R.T.
Table 4-2: 1.8” SSD Serial ATA Power Pin Definitions ________________________________ 29 Table 5-1: ATA Feature Set ____________________________________________________ 30 Table 5-2: ATA Commands _____________________________________________________ 31 Table 5-3: S.M.A.R.T. Command Set _____________________________________________ 37 Table 5-4: Supported S.M.A.R.T. EXECUTE OFF-LINE IMMEDIATE Subcommands ________ 38 Table 5-5: Baseline S.M.A.R.T.
1 Introduction 1.1 Features Viking’s rugged industrial designed SSD’s offer the highest flash storage reliability and performance in harsh environments such as shock, vibration, humidity, altitude, ESD, and extreme temperatures. Viking SSD’s meet JEDEC JESD22 standards and pass numerous qualifications including MIL-STDs and NEBS.
Table 1-1: Element SSD Features The Element SSD Processor delivers the following features: Feature Best in class sequential and random Read/Write performance Seamless SATA Revision 2.x interface support for SATA up to 3Gbps) Seamless SATA Revision 3.
Feature Protection (Factory setting is 3 years) Thermal sensing energy management Stainless steel housing for ruggedness, low EMI/ESD, and thermal management RoHS and WEEE compliant Manual PSFS1XXXXGXXXX Revision B7 www.vikingtechnology.
1.2 Block Diagram Figure 1-1: High-Level Block Diagram for Client /Industrial Series Power Supplies (2.85V, 1.8V, 1.0V) 3.3V PAC 2.85V, 1.0V, 1.8V Note: PAC in low power mode operates on 2.85V_Standby and 1.0V_Standby 2.85V, 1.8V uSATA Connector CONTROLLER FLASH Interface FLASH Memory SATA Interface Activity Indicator Signal LEDs Figure 1-2: High-Level Block Diagram for Enterprise Series Power Supplies (2.85V, 1.8V, 1.0V) PAC 2.85V, 1.0V, 1.8V Power_Fail VMon 2.85V, 1.
1.3 SATA Interface for VRFS1xGA, VRFS1xGJ • • • The Serial ATA (SATA) interface is compliant with the SATA IO Serial ATA specification, Revision 2.6 that supports SATA up to 3Gbps. The SATA interface connects the host computer to the SSD subsystem. The SATA interface runs at a maximum speed of 3 Gbps (Gigabits per second). If the host computer is unable to negotiate a speed of 3 Gbps, the SATA interface automatically renegotiates to a speed of 1.5 Gbps. 1.
CAPACITY RAW 64 96 96 96 96 128 128 128 128 192 192 192 192 256 256 256 256 256 384 384 384 384 512 512 512 512 CAPACITY USER 50 80 90 96 75 120 128 121 100 160 180 192 150 240 256 251 225 200 360 384 335 300 480 512 450 400 512_LBA_COUNT 97,696,368 156,301,488 175,836,528 187,557,552 146,533,968 234,441,648 250,069,680 236,395,152 195,371,568 312,581,808 351,651,888 375,093,936 293,046,768 468,862,128 500,118,192 490,350,672 439,559,568 390,721,968 703,282,608 750,166,704 654,445,008 586,072,368 937,703,
• Avoid mixing NCQ and non-NCQ commands Table 2-2: Maximum Sustained Read and Write: MB/sec and IOPS VRFS1xGA VRFS1xGJ VRFS1xGK VRFS1xGM VRFS1xGF VRFS1xGN Units Sequential Read, 128K block size Up to 260 Up to 500 Up to 520 MB/s Sequential Write, 128K block size Up to 260 Up to 500 MB/s Up to 30,000 Up to 60,000 Up to 30,000 Up to 20,000 Up to 520 Up to 60,000 Up to 60,000 Access Type Random Read, 4K block size Random Write, 4K block size IOPS IOPS Notes: 1.
2.3 Timing Table 2-3: Timing Specifications Average Latency (ms) Write Cache Enabled <1 <2 <1 4 second (entire drive) Type Power On to Ready (POR) Reset to Ready Command to DRQ Time to Erase (ATA Secure Erase) Notes: 1. Based on MLC NAND 2. Device measured using IOMETER 08, Queue depth set to 32 for NCQ 3. Sector Read/Write latency measured up ton 4K block size (512B/sector = 1 Block), random access 4. Sequential IOPS cover the entire range of valid logical block addresses (LBA’s).
2.4 Electrical Characteristics 2.4.1 Absolute Maximum Ratings Table 2-5: Absolute Maximum Ratings for 3.3V SSD’s Values shown are stress ratings only. Functional operation outside normal operating values is not implied. Extended exposure to absolute maximum ratings may affect reliability. Description Maximum Voltage Range for Vin Maximum Temperature Range Min -0.3 -40 Max 4.0 +85 Unit V c Min 3.14 Max 3.47 Unit V 2.4.2 Supply Voltage 1.8” SSD’s operate at 3.3V. Table 2-6: 3.
Table 2-8: Power Consumption at 3.3V Client — 480GB Enterprise — 400GB 6Gbps 3Gbps 6Gbps 3Gbps RMS Power (W) RMS Power (W) RMS Power (W) RMS Power (W) 5.11 3.10 0.97 4.57 2.25 0.85 5.71 3.74 2.05 4.84 2.72 1.95 Write Read Idle Notes: 1. Values based IOMeter 06: 100% Sequential, 256K Transfer, Q Depth: 32. Temperature: 25C 2.5 Environmental Conditions 2.5.
2.5.2 Shock and Vibration Table 2-10: Shock and Vibration Specifications Shock1 Operating and nonOperating Vibration1 Operating and nonOperating Mode MIL STD-810F, section 516.5 MIL STD-810F, section 514.5 50g 11ms, 3 Axis, Half Sine, Positive and Negative 10~1000Hz: 0.04g2/Hz 3 Axis 1000~2000Hz: 6db/oct 3 Axis Notes: 1. Shock and vibration specifications assume that the SSD is latched securely. Stimulus may be applied in the X, Y, or Z axis. 2.5.
2.6 Reliability Table 2-12: Reliability Specifications Parameter Nonrecoverable read errors (UBER)1 Mean Time Between Failures (MTBF)2 Power On/Off Cycles3 Read Endurance Write or Erase Endurance4 Global wear-leveling Data retention Value <1 sector in 1017 bits read, max 3,000,000 hours 50,000 cycles Unlimited (specified by the flash component) ~ 2% between least worn and most worn cell See Note 5 Notes: 1.
2.6.1.2 Data Path CRC Error Detection CRC error detection is applied against data along internal data paths. CRC detection uses a 32-bit checksum (CRC32) to protect data along all internal data paths to correct silent errors not detected by other schemes. 2.6.1.3 RAISETM Data Protection Against Catastrophic Flash Page/Block Failure Element SSD implements proprietary R.A.I.S.E.
code. Any image not corroborated by at least one other image is discarded. In this way a reliable firmware image is always chosen on boot-up for execution. If a firmware image is discarded, a new redundant image is created from the good images to ensure original levels of protection. Firmware images are also protected in Flash memory and during fetch by the maximum ECC correction power, and by RAISETM correction technology. 2.6.
more than the average. The result is an SSD that is far more reliable across its full capacity and over a far greater length of time. The controller uses both static and dynamic wear-leveling algorithms to globally manage cell degradation to approximately 2% between least worn and most worn cells or to the value specified in the S.M.A.R.T Wear Range Delta command (ID=177, Opcode=0xB1) 2.6.3.
2.7.1 Secure Erase Support In the following table are the supported Secure Erase Commands for the Element SSD.
The SSD also has an optional Cryptographic Erase plus Physical Flash Erase command where in addition to a Secure Erase, all encrypted, unreadable data and all Flash blocks (excluding FW blocks) are erased. Persistent drive life data is rewritten to the flash blocks after erase. The operation time for a Cryptographic Erase with Physical Flash Erase, scrambled encrypted data is ~ 1 second/GByte. 2.7.1.
3 Mechanical Information 3.1 Element SSD Physical Dimensions Table 3-1: Physical Dimensions Dimensions Height / Thickness Width Length VRFS1x 5.0 +/- 0.15 54 +/- 0.2 78.5 +/-0.3 Units mm mm mm Figure 3-1: 1.8” SSD Dimensions Notes: All dimensions are in millimeters. Manual PSFS1XXXXGXXXX Revision B7 www.vikingtechnology.
3.2 Element SSD Weight The weight of the enterprise 1.8” SSD is approximately 50 grams. The weight of the client 1.8” SSD is approximately 30 grams. 4 Pin and Signal Descriptions 4.1 3.3V 1.8” SSD Signal and Power Description Tables Table 4-1: 1.
4.2 Hot Plug Support Hot Plug insertion and removal are supported in the presence of a proper connector and appropriate operating system (OS) support as described in the SATA 2.6 and SATA 3 specification. This product supports Asynchronous Signal Recovery and will issue an unsolicited COMINIT when first mated with a powered connector to guarantee reliable detection by a host system without hardware device detection. 5 Command Sets The Element SSD complies with ATA-8.
Support Feature Set ATA-8 REF ATA Device Element SSD Streaming feature set 4.23 O NO Tagged Command Queuing (TCQ) feature set 4.24 O NO Trusted Computing feature set 4.25 O NO Write-Read-Verify feature set 4.26 O NO Key: M – Mandatory, O – Optional, P – Prohibited, N – Not defined, YES – Supported, NO – Not Supported 5.1 ATA Commands Table 5-2: ATA Commands ATA-8 REF 7.
ATA-8 REF - Commands INITIALIZE DRIVE PARAMETERS ATA-8 M Sup YES Feature Set OP 91h O 7.20.4 ADD LBA(S) TO NV CACHE PINNED SET FLUSH NV CACHE NO NV Cache B6h/10h O NO NV Cache B6h/14h 7.20.5 7.20.6 NV CACHE DISABLE O NO NV Cache B6h/16h NV CACHE ENABLE O NO NV Cache B6h/15h 7.20.7 QUERY NV CACHE MISSES O NO NV Cache BRh/13h 7.20.8 QUERY NV CACHED PINNED SET O NO NV Cache B6h/12h 7.20.
ATA-8 REF 7.42 Commands SECURITY ERASE PREPARE ATA-8 M Sup YES Key Word Option SecuErasePrep, SERP Feature Set Security OP F3h 7.43 SECURITY ERASE UNIT M YES SecuEraseUnit, SEEU Security F4h 7.44 SECURITY FREEZE LOCK O YES SecuFrzLock, SFZL Security F5h 7.45 SECURITY SET PASSWORD M YES SecuSetPsw, SESP Security F1h 7.46 SECURITY UNLOCK M YES SecuUnlock, SEUL Security F2h SEEK M YES 7.47 - SERVICE O NO 70h-7Fh 7.48 SET FEATURES M YES SetFeature, SETF 7.49.
ATA-8 REF 7.61 Commands WRITE BUFFER ATA-8 O Sup YES Key Word Option WrBuf, WBUF Feature Set General OP E8h 7.62 WRITE DMA M YES WdDma, WDMA General CAh 7.63 WRITE DMA EXT M YES WrDmaEx, WDMX 35h 7.64 WRITE DMA FUA EXT M YES WrDmaFuaEx, WDFE 7.65 WRITE DMA QUEUED O NO WrDmaQ, WDMQ 48-bit Address 48-bit Address TCQ CCh 7.66 WRITE DMA QUEUED EXT O NO WrDmaQEx, WDQX TCQ 36h 7.
• Write Sector(s) Ext 5.1.2 ATA General Feature Command Set The Element SSD supports the ATA General Feature command set consisting of: • Download Microcode • Executive Device Diagnostics • Flush Cache • Identify Device • NOP (optional) • Read Buffer (optional) • Read DMA • Read Multiple • Read Sector(s) • Read Verify Sector(s) • Seek • Set Features • Set Multiple Mode • Write Buffer (optional) • Write DMA • Write Multiple • Write Sector(s) 5.1.
• • • • • • Set Max Address Set Max Address Ext Set Max Freeze Lock (optional) Set Max Lock (optional) Set Max Set Password (optional) Set Max Unlock (optional) 5.1.6 Power Management Command Set The Element SSD supports the Power Management command set consisting of: • Check Power Mode • Idle • Idle Immediate • Sleep • Standby • Standby Immediate 5.1.
addressed here. Further, it is recommended to consult the list of public S.M.A.R.T. attributes. 5.1.8.1 S.M.A.R.T. Command Set The supported S.M.A.R.T. command set is listed in the table below. See the AT Attachment standard for implementation details. Table 5-3: S.M.A.R.T. Command Set Value (hex) Command 00-CF Reserved D0 S.M.A.R.T. read attributes D1* S.M.A.R.T. read threshold D2 S.M.A.R.T. enable/disable attribute autosave D3* S.M.A.R.T. save attribute values D4 S.M.A.R.T.
Table 5-4: Supported S.M.A.R.T. EXECUTE OFF-LINE IMMEDIATE Subcommands Value 00h 01h 02h 04h 7Fh 81h 82h 84h Description Execute S.M.A.R.T. off-line routine immediately in off-line mode Execute S.M.A.R.T. Short self-test routine immediately in off-line mode Execute S.M.A.R.T. Extended self-test routine immediately in off-line mode Execute S.M.A.R.T. Selective self-test routine immediately in off-line mode Abort off-line mode self-test routine Execute S.M.A.R.T.
much data is being transferred. Therefore, constant host system IOs cause check-pointing and S.M.A.R.T. log update relatively frequently (approximately every 2 seconds); very slow or idle host transaction rates result in check-pointing and S.M.A.R.T. log update less frequently (worst-case around every 2 minutes). All logs are non-volatile except as within each of the log description. Handling and reporting error conditions relating to the updating of S.M.A.R.T. logs and S.M.A.R.T.
ID Hex Attribute Name 171/181 172/182 174 177 184 0xAB 0xAC 0xAE 0xB1 0xB8 Program Fail Count Erase Fail Count Unexpected power loss Wear range Delta Reported I/O Error Detection Code Rate 187 0xBB Reported Uncorrectable Errors 194 0xC2 Temperature 195 0xC3 ECC On the Fly Count 196 0xC4 Reallocation Count 198 0xC6 Uncorrectable Sector Count 199 0xC7 SATA R-Errors (CRC) Error Count 201 0xC9 Uncorrectable Soft Read Error Rate 204 0xCC Soft ECC Correction Rate 230 0xE6 Life Curv
ID Hex Attribute Name 235 0xEB Power Fail Backup Health 241 0xF1 Lifetime Writes from Host 242 0xF2 Lifetime Reads to Host Description VRFS1xGM. Health of the Holdup Circuit. This feature is not available for industrial versions, which are VRFS1xGA, VRFS1xGK and VRFS1xGM. Indicates the total amount of data written from hosts since the drive was deployed. Indicates the total amount of data read to hosts since the drive was deployed. Notes: 1. SMART ID# 233 and 234 are for Internal Use only.
A number of S.M.A.R.T. attributes relate to correctable and uncorrectable ECC, and RAISE errors. The figure below summarizes each ECC and RAISE error category and shows which errors the applicable S.M.A.R.T. attributes track. Figure 5-1: S.M.A.R.T. ECC and RAISE Error Summary Figure 5-2: S.M.A.R.T. ECC and RAISE Error Summary for Industrial versions of VRFS1xGA and VRFS1xGK Manual PSFS1XXXXGXXXX Revision B7 www.vikingtechnology.
5.1.9.2 Supported Baseline Attribute Details The table below provides a detailed description of supported S.M.A.R.T. attributes and how they may be used. Table 5-6: Baseline S.M.A.R.T. Attribute Details ID 1 Attribute Name Raw Read Error Rate Description Raw error rate related to ECC errors. Errors are counted as ECC errors above a threshold. For the CONTROLLER, this attribute includes Uncorrectable ECC (UECC) errors, and Uncorrectable RAISE (URAISE)errors.
ID 5 Attribute Name Retired Block Count Description Tracks the total number of retired blocks. Normalized Equation: Count = 100 - (100* RBC / MRB) RBC = RetiredBlockCount = Number of retired blocks. MRB = MinimumReqBlocks = Minimum number of reserve blocks available for CONTROLLER use. This value is set at factory configuration time. Rational The normalized equation for this attribute decrements as blocks are retired and the reserve (overprovisioned) block count is decremented.
ID 12 13 Attribute Name Device Power Cycle Count Soft Read Error Rate Description This attribute indicates the count of full hard disk power on/off cycles. Normalized Equation: 100 - (PCC / 1024) Normalized Value Range: Best = 100 Worst = 1 Raw Usage: [3-0] : Cumulative lifetime power cycle count (PCC) [6-4] : None (0x00) This attribute tracks the number of correctable ECC errors (CECC).
ID Attribute Name Description Rational additional 128,000 blocks erased. 170 Reserve Block Count The number of reserve Flash memory blocks. This Attribute is related to attribute 5: Retired Block Count. It provides a count of reserve (over-provisioned) blocks. (Note that all blocks, including reserve blocks, are in service at all times; reserve blocks constitute Flash memory space over and above the drive’s logical capacity.
ID Attribute Name Description Usage: [3-0] : Unexpected Power Loss Event Count [6-4] : None (0x00) Rational 177 Wear Range Delta Provides a value equal to the delta between the max worn Flash block and the least worn Flash block, as a percentage of the max rated wear of the SSD. This Attribute identifies the “delta” between most-worn and least-worn Flash blocks, as a percentage of the max rated wear of the Flash memory on the SSD.
ID 184 Attribute Name Reported I/O Error Detection Code Errors (IOEDC errors) Description Error Detection Code Errors (IOEDC errors) This attribute tracks the number of I/O errors encountered during reads from flash memory.
ID Attribute Name 195 ECC On-the-Fly Error Count Description power-on) [5-4]: Lowest temperature (C; since power-on) [6] : None (0x00) This attribute tracks the number of uncorrectable ECC errors (UECC). The normalized value is only computed when the number of bits in the "BitsRead" count is in the range of 10^10 to 10^12. The count is cleared at power on reset and when >10^12 bits have been read.
ID 196 Attribute Name Reallocation Event Count Description Tracks the total number of reallocated Flash blocks. Normalized Equation: Count = 100 - (100* RBC / MRB) RBC = RetiredBlockCount = Number of retired blocks. MRB = MinimumReqBlocks = Minimum number of reserve blocks available for CONTROLLER use. This value is set at factory configuration time. Rational The normalized equation for this attribute decrements as blocks are retired and the reserve (overprovisioned) block count is decremented.
ID 199 Attribute Name SATA R-Errors Error Count Description This attribute tracks the number SATA TX R_Errors + SATA RX R_Errors. Normalized Equation: 200 - (RErrors * SampleSize / NumSectorsTransferred) Rational Normalized equation implemented per Customer request.
ID 204 Attribute Name Soft ECC Correction Rate (UECC) Description Number of errors corrected by RAISE that cannot be fixed on-the-fly and requires RAISE to correct. The normalized value is only computed when the number of bits in the "BitsRead" count is in the range of 10^10 to 10^12. The count is cleared at power on reset and when >10^12 bits have been read.
ID 231 Attribute Name SSD Life Left Description Indicates the approximate SSD life left, in terms of PE cycles and Flash blocks currently available for use.
ID 241 Attribute Name Lifetime Writes from Host System Description (min(scapTestDischgToutMs, scaplnitDischgMs) - 10))) where scapCurDischgMs = Most recent discharge time (limited by apTestDischgToutMs).
Table 5-7: S.M.A.R.T Attribute Default Threshold Values & Clear Conditions This table shows the default threshold values and conditions that clear the S.M.A.R.T attributes.
5.1.10 Attribute Sector The S.M.A.R.T. Attribute Sector defines attribute format and the data structure is defined in the following table. Table 5-8: S.M.A.R.T. Attribute Data Structure Byte Description 0:1 2 3:4 5 6 7:12 13 14:25 S.M.A.R.T. structure version number First Stored Attribute Number (i.e.
modified or written via the S.M.A.R.T. Write Threshold Value Command (D7). Threshold values are obtained from the Saved Configuration Page. Table 5-9: S.M.A.R.T. Threshold Data Structure Byte Description 0:1 2 3 4:13 14 15 16:25 S.M.A.R.T. structure version number First Stored Attribute Number (i.e.
6 Certifications and Compliance Table 6-1: Device Certifications Certification/Compliance CE Compliant FCC TUV RoHS China RoHS Serial ATA EU WEEE Compliant Manual PSFS1XXXXGXXXX Revision B7 www.vikingtechnology.com Description Indicate conformity with the essential health and safety requirements set out in European Directives Low Voltage Directive and EMC directive.
7 References • • • • • Viking Technology Environmental Test Report for 1.8” SSD Viking Technology EMI/EMC Test Report for 1.8” SSD Viking Technology EMI/EMC Test Report for 1.8” SSD Environmental Specification: MIL-STD-810F Serial ATA Specification, Revision 2.6 and Revision 3 Manual PSFS1XXXXGXXXX Revision B7 www.vikingtechnology.
8 Glossary This document incorporates many industry- and device-specific words. Use the following list to define a variety of terms and acronyms. Term Definition ATA ATAPI Advanced Technology Attachment Advanced Technology Attachment Packet Interface Bit error rate, or percentage of bits that have errors relative to the total number of bits received Device Initiated Link Power Management. The ability of the device to request SATA link power state changes.
