1、American National StandardDeveloped byfor Information Technology SCSI/ATA Translation - 2(SAT-2)INCITS 465-2010INCITS 465-2010Reaffirmed as INCITS 465-2010 R2015INCITS 465-2010American National Standardfor Information Technology SCSI/ATA Translation - 2(SAT-2)SecretariatInformation Technology Indust
2、ry CouncilApproved November 12, 2010American National Standards Institute, Inc.AbstractThis standard specifies a translation layer between SCSI and ATA protocols. This translation layer is used by storage controllers to emulate objects in a SCSI logical unit using an ATA device, providing capabiliti
3、es defined by SCSI standards (e.g., the SCSI Block Commands (SBC-3) and SCSI Primary Commands (SPC-4) standards). For the purposes of this standard, ATA device capabilities are defined by ATA8-AAM, ATA8-ACS, ATA8-APT, ATA8-AST, and SATA-2.6.Approval of an American National Standard requires review b
4、y ANSI that therequirements for due process, consensus, and other criteria for approval havebeen met by the standards developer.Consensus is established when, in the judgement of the ANSI Board ofStandards Review, substantial agreement has been reached by directly andmaterially affected interests. S
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7、n interpretation of any American NationalStandard. Moreover, no person shall have the right or authority to issue aninterpretation of an American National Standard in the name of the AmericanNational Standards Institute. Requests for interpretations should beaddressed to the secretariat or sponsor w
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9、f American National Standards mayreceive current information on all standards by calling or writing the AmericanNational Standards Institute.American National StandardPublished byAmerican National Standards Institute, Inc.25 West 43rd Street, New York, NY 10036Copyright 2010 by Information Technolog
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14、 obtained from the publisher. No further patent search is con-ducted by the developer or publisher in respect to any standard it processes. No representation ismade or implied that this is the only license that may be required to avoid infringement in the use ofthis standard.iContentsPageForewordxIn
15、troduction . xiv1 Scope 12 Normative References 42.1 Normative references . 42.2 Approved references 42.3 References under development . 42.4 Other references 43 Definitions, symbols, abbreviations, and conventions . 53.1 Definitions 53.2 Symbols and abbreviations 103.3 Keywords . 113.4 SAT specific
16、 terminology 113.5 Conventions . 113.5.1 Overview . 113.5.2 Numeric conventions . 123.5.3 Bit and byte ordering . 123.5.4 Notation for byte encoded character strings 143.5.5 Notation for command descriptions . 143.5.5.1 Description 143.5.6 Use of field names defined in ATA standards and specificatio
17、ns 154 General . 165 SCSI architecture 175.1 Overview 175.2 Multi-Initiator Configurations . 185.3 Unit attention condition . 195.4 Handling errors in ATA commands . 195.5 ATA nexus loss 195.6 ATA hardware and software reset processing . 205.7 Translation of Large Physical Sectors 206 Command manage
18、ment model . 256.1 Overview 256.2 Multiple command processing 266.2.1 Comparison of SCSI task set management and ATA queuing . 266.2.2 Command mapping overview 276.2.3 Mapping of SCSI commands to ATA queued commands . 276.2.4 Commands the SATL queues internally 276.2.5 Command queuing with multiple
19、I_T nexuses . 276.2.6 Collateral abort with queued commands . 286.3 Command priority . 286.4 Task management functions 296.4.1 Task management functions overview 296.4.2 Aborting ATA queued commands . 296.4.3 Aborting ATA non-queued commands 296.4.4 ABORT TASK 296.4.5 ABORT TASK SET 306.4.6 CLEAR AC
20、A 30ii6.4.7 CLEAR TASK SET 306.4.8 I_T NEXUS RESET . 316.4.9 LOGICAL UNIT RESET 316.4.10 QUERY TASK . 326.4.11 QUERY TASK SET . 326.4.12 QUERY ASYNCHRONOUS EVENT . 326.4.13 Reset task management functions 336.5 CONTROL Byte . 336.6 I_T nexus loss 337 Summary of SCSI / ATA command mappings 348 SCSI P
21、rimary Commands (SPC) command mapping . 368.1 INQUIRY command 368.1.1 INQUIRY command overview . 368.1.2 Standard INQUIRY data 378.2 LOG SENSE command 398.2.1 LOG SENSE command overview 398.2.2 PC (page control) field 408.2.3 PAGE CODE and SUB PAGE CODE fields . 408.3 LOG SELECT command 418.3.1 LOG
22、SELECT command overview 418.3.2 Page control field translations . 418.3.3 PAGE CODE field and SUBPAGE CODE field translations . 418.4 MODE SELECT (6) command . 418.4.1 MODE SELECT (6) command overview . 418.4.2 MODE SELECT (6) CDB fields . 428.5 MODE SELECT (10) command . 428.6 MODE SENSE (6) comman
23、d . 428.6.1 MODE SENSE (6) command overview . 428.6.2 MODE SENSE (6) CDB fields . 438.7 MODE SENSE (10) command . 438.8 READ BUFFER command . 448.8.1 READ BUFFER command overview .448.8.2 MODE field 448.8.2.1 MODE field overview 448.8.2.2 Data mode 448.8.2.3 Descriptor mode . 458.9 REQUEST SENSE com
24、mand 458.9.1 REQUEST SENSE command overview 458.9.2 Format operation in progress 468.9.3 SMART threshold exceeded condition 468.9.4 Stopped power condition . 468.9.5 Unit attention condition established . 478.9.6 Idle power condition 478.9.7 Standby power condition . 478.10 SECURITY PROTOCOL IN comm
25、and . 478.10.1 SECURITY PROTOCOL field . 478.10.2 SECURITY PROTOCOL SPECIFIC field . 478.10.3 ALLOCATION LENGTH field 488.11 SECURITY PROTOCOL OUT command . 488.11.1 SECURITY PROTOCOL field . 488.11.2 SECURITY PROTOCOL SPECIFIC field . 488.11.3 TRANSFER LENGTH field . 498.12 SEND DIAGNOSTIC command
26、. 508.12.1 SEND DIAGNOSTIC command overview . 508.12.2 SELF-TEST CODE field 51iii8.12.3 SELFTEST bit 528.13 TEST UNIT READY command . 548.13.1 TEST UNIT READY command overview 548.13.2 TEST UNIT READY command translation 548.14 WRITE BUFFER command 558.14.1 WRITE BUFFER command overview . 558.14.2 M
27、ODE field 558.14.2.1 MODE field overview 558.14.2.2 Write data mode . 568.14.2.3 Download microcode mode 05h .568.14.2.4 Download microcode mode 07h .569 SCSI Block Commands (SBC) command mapping 589.1 Translating LBA and transfer length and ATA command use constraints 589.1.1 Overview . 589.1.2 Dir
28、ect logical block mapping model . 589.1.3 Indirect logical block mapping model 589.1.4 Selection of ATA block commands 589.2 FORMAT UNIT command 609.2.1 FORMAT UNIT command overview 609.2.2 FORMAT UNIT parameter list . 619.2.3 SATL defect list header field combinations . 619.2.4 FOV bit 619.2.5 DCRT
29、 bit 619.2.6 IP bit . 629.3 READ commands overview 629.3.1 READ commands operation code translation . 629.3.2 READ commands with FUA 629.4 READ (6) command . 639.5 READ (10) command . 639.6 READ (12) command . 649.7 READ (16) command . 649.8 READ CAPACITY (10) command 659.8.1 READ CAPACITY (10) comm
30、and overview 659.8.2 READ CAPACITY (10) parameter data . 659.9 READ CAPACITY (16) command 669.9.1 READ CAPACITY (16) command overview 669.9.2 READ CAPACITY (16) parameter data . 669.10 REASSIGN BLOCKS command 679.10.1 REASSIGN BLOCKS command overview 679.10.2 REASSIGN BLOCKS operation code . 679.11
31、START STOP UNIT command . 699.11.1 START STOP UNIT command overview 699.11.2 Processing ending status if an error occurs 769.11.3 START STOP UNIT START bit LOEJ bit combinations 769.11.4 NO_FLUSH translation .779.12 SYNCHRONIZE CACHE (10) command . 779.13 SYNCHRONIZE CACHE (16) command . 789.14 VERI
32、FY (10) command 789.15 VERIFY (12) command 799.16 VERIFY (16) command 799.17 WRITE commands overview 809.17.1 WRITE commands operation code translation 809.17.2 WRITE commands with FUA . 809.18 WRITE (6) command 819.19 WRITE (10) command 829.20 WRITE (12) command 83iv9.21 WRITE (16) command 849.22 W
33、RITE AND VERIFY commands overview . 849.23 WRITE AND VERIFY (10) command . 859.24 WRITE AND VERIFY (12) command . 869.25 WRITE AND VERIFY (16) command . 879.26 WRITE LONG (10) command 879.27 WRITE LONG (16) command 899.28 WRITE SAME (10) command 899.28.1 WRITE SAME (10) command overview 899.28.2 LBD
34、ATA bit and PBDATA bit 919.29 WRITE SAME (16) command 9110 Parameters for SAT implementations . 9310.1 Mode parameters . 9310.1.1 General information . 9310.1.2 Commonly used SCSI mode pages overview . 9310.1.3 Mode parameter headers 9410.1.4 Mode parameter block descriptor fields 9510.1.5 Control m
35、ode page 9510.1.5.1 General translation . 9510.1.5.2 Extended self-test completion time . 9610.1.6 Read-Write Error Recovery mode page 9710.1.7 Caching mode page 9810.1.8 Informational Exceptions Control mode page . 10010.1.8.1 Informational Exceptions Control mode page overview . 10010.1.8.2 Method
36、 of reporting informational exceptions (MRIE) 10010.1.9 Power Condition mode pages . 10010.1.9.1 Power Condition mode pages overview . 10010.1.9.2 ATA Power Condition mode page 10110.1.9.3 Power Condition mode page 10110.2 Log parameters 10310.2.1 Log parameters overview 10310.2.2 Application Client
37、 log page 10410.2.2.2 LOG SELECT translation . 10410.2.2.3 LOG SENSE translation . 10510.2.3 Supported Log Pages log page . 10610.2.4 Support Log Pages and Subpages log page . 10610.2.5 Self-Test Results log page 10610.2.5.1 Self-Test Results log page overview 10610.2.5.2 A method of determining ATA
38、 command selection for field translations 11010.2.5.3 Sense key and additional sense code 11110.2.6 Informational Exceptions log page 11210.2.6.1 Informational Exceptions log page overview 11210.2.6.2 Additional sense code and additional sense code qualifier translations . 11210.2.6.3 Most recent te
39、mperature reading translation 11310.3 Vital product data parameters 11310.3.1 Vital product data parameters overview 11310.3.2 Supported VPD pages VPD page . 11410.3.3 Unit Serial Number VPD page . 11410.3.4 Device Identification VPD page . 11510.3.4.1 Device Identification VPD page overview . 11510
40、.3.4.2 Logical unit name . 11510.3.4.2.1 Logical unit name overview . 11510.3.4.2.2 Logical unit name derived from the world wide name . 11510.3.4.2.3 Logical unit name derived from the model number and serial number 11610.3.4.3 Examples of additional designation descriptors . 11710.3.4.3.1 Designat
41、ion descriptors included by a SATL in an ATA host 117v10.3.4.3.2 Designation descriptors included by a SATL in a SAS initiator device 11810.3.4.3.3 Designation descriptors included by a SATL in a SCSI to ATA protocol bridge 11910.3.5 Mode Page Policy VPD page 11910.3.6 Block Device Characteristics V
42、PD Page . 12011 Translation of ATA errors to SCSI errors 12112 SAT-specific SCSI extensions 12212.1 SAT-specific SCSI extensions overview 12212.2 ATA PASS-THROUGH commands 12212.2.1 ATA PASS-THROUGH commands overview 12212.2.2 ATA PASS-THROUGH (12) command . 12312.2.3 ATA PASS-THROUGH (16) command .
43、 12612.2.4 Mapping of ATA PASS-THROUGH CDB field translations . 12712.2.5 ATA PASS-THROUGH status return 12812.2.6 ATA Status Return descriptor 12912.2.7 Fixed format sense data 13012.3 SAT-specific mode pages 13212.3.1 SAT-specific mode pages overview 13212.3.2 PATA Control mode page . 13212.3.3 AT
44、A Power Condition mode page . 13612.4 SAT-specific VPD pages 13712.4.1 SAT-specific VPD pages overview 13712.4.2 ATA Information VPD page . 13712.4.2.1 ATA Information VPD page overview . 13712.4.2.2 ATA device signature . 13912.4.2.3 ATA IDENTIFY DEVICE data or ATA IDENTIFY PACKET DEVICE data . 140
45、12.5 SAT-specific security protocol parameters . 14012.5.1 ATA Device Server Password security protocol 14012.5.1.1 SECURITY PROTOCOL IN command . 14012.5.1.1.1 SECURITY PROTOCOL IN command overview . 14012.5.1.1.2 SECURITY PROTOCOL IN parameter data . 14112.5.1.1.3 SCSI commands allowed in the pres
46、ence of various security modes . 14212.5.1.2 SECURITY PROTOCOL OUT command . 14412.5.1.2.1 SECURITY PROTOCOL OUT command overview . 14412.5.1.2.2 Set password parameter list 14612.5.1.2.3 Unlock parameter list . 14712.5.1.2.4 Erase unit parameter list 14712.5.1.2.5 Disable password parameter list .
47、14812.6 SAT-specific log pages . 14812.6.1 SAT-specific log pages overview 14812.6.2 ATA PASS-THROUGH Results log page 148Annex A SCSI to ATAPI command transmission 149A.1 Introduction 149A.2 ATAPI device model 149A.3 SCSI CDB transmission . 149A.4 ATAPI Command management . 150A.5 SATL ATAPI implem
48、entations . 150A.6 ATAPI I_T nexus loss handling 150viTablesPage1 Numbering Conventions . 122 Example of ordering of bits and bytes within a multi-byte element 133 Example of ordering of bits and bytes within a multiple element . 144 Format for translated command field descriptions . 155 Large Physi
49、cal Block Geometry Parameters . 206 Comparison of SCSI task set management and ATA queuing methods . 267 SATL processing of ATA commands aborted by ATA collateral abort . 288 Command Priority to NCQ PRIO Mapping . 289 CONTROL byte fields 3310 Summary of SCSI / ATA Command Mapping 3411 INQUIRY CDB field translations . 3612 Standard INQUIRY data fields . 3713 LOG SENSE CDB field translations . 3914 PC field 4015 PAGE CODE / SUB PAGE CODE fields . 4016 LOG SELECT CDB field translations . 4117 Page control field translation 4118 LOG SELECT PAGE CODE field and SUBPAGE CODE field translations
