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Printed Saturday, October 07, 2006 8:16 PM

Working Project

Draft T10/1731-D

Revision 7a

7 October 2006

Information technology -

SCSI Primary Commands - 4 (SPC-4)

This is an internal working document of T10, a Technical Committee of Accredited Standards Committee INCITS

(InterNational Committee for Information Technology Standards). As such this is not a completed standard and has

not been approved. The contents may be modified by the T10 Technical Committee. The contents are actively

being modified by T10. This document is made available for review and comment only.

Permission is granted to members of INCITS, its technical committees, and their associated task groups to

reproduce this document for the purposes of INCITS standardization activities without further permission, provided

this notice is included. All other rights are reserved. Any duplication of this document for commercial or for-profit

use is strictly prohibited.

T10 Technical Editor: Ralph O. Weber

ENDL Texas

18484 Preston Road

Suite 102 PMB 178

Dallas, TX 75252

USA

Telephone: 214-912-1373

Facsimile: 972-596-2775

Email: ROWeber@IEEE.org

Reference number

ISO/IEC 14776-454 : 200x

ANSI INCITS.***:200x

T10/1731-D Revision 7a 7 October 2006

iii Working Draft SCSI Primary Commands - 4 (SPC-4)

Revision Information

Changes in the SCSI standards family list, clause 1, are never marked with change bars. Changes in the

ASC/ASCQ, Operation Code, Log Page Code, Mode Page Code and Vendor ID tables are usually not marked with

change bars.

1 Approved Documents Included

No T10 approved proposals are included in SPC-4 r0. SPC-4 r0 is identical to SPC-3 r23 except that editorial

changes made by the ANSI Editor as part of the INCITS Public Review for SPC-3 appear in SPC-4 r0.

The following T10 approved proposals have been incorporated SPC-4 up to and including this revision:

04-198r5 Background Medium Scan

04-262r8 ATA Command Pass-Through

04-335r2 WORM Tamper Read Enable [additional sense code]

04-371r2 Enable Background Operation Error Reporting Bit

04-372r1 I_T NEXUS RESET task management function

04-397r3 SAT ATA control mode page proposal

05-003r3 VPD Page 83 Identifier s/b Designator Changes

05-015r2 Add new ADC-2 command to set Volume Identifier

05-026r2 SMC-3: DTE Prevented Medium Removal [additional sense code]

05-074r1 SPC-4 Command requirements

05-142r4 SAT - LOG SENSE command and SMART [additional sense code]

05-156r7 Application ownership of protection information Reference Tag

05-157r9 Security Commands proposal

05-230r0 Obsolete Per Initiator Port in SPC-4

05-296r0 Persistent Reservations PREEMPT AND ABORT Clarification

05-242r2 Combinations of bits and fields in the LOG SELECT CDB and log parameters

05-248r4 Statistics and Performance Log Pages

05-252r2 Create well known LUN for trusted commands

05-262r3 SSC-3: ASC/ASCQ for Medium Thread Failure [additional sense code]

05-299r1 Correct Log Page Format Tables in SPC-4, SBC-3, & SAS-2

05-317r3 Remove Attached Media Changer model

05-331r1 Allow Mode Sense Through Read Only Persistent Reservation

05-337 (Sep. 2005 CAP minutes) Change IEEE 1212-1994 reference to IEEE 1212-2001

05-340r3 Background scan additions

05-360r2 Extended self test completion time value update

05-368r2 Allow more commands through Write Exclusive reservations

05-370r2 NOTIFY (POWER LOSS EXPECTED) Fixes [additional sense code]

05-374r2 Disabling Reassign on Write Long Logical Blocks

05-375r1 EBACKERR bit Error Reporting Clarification

05-379r0 Unit attention condition trivial wording changes

05-380r0 Mode Page Policy MLUS bit correction

05-383r4 Deferred Microcode Downloads

05-406r1 New ASC/ASCQs for Device Port Address

06-018r0 Update SPC-4 version field

06-079r1 More Log Page Cleanup

06-108r3 Add security protocol and additional sense for tape encryption

06-113r2 Log Parameter Subpages

06-127 Assign Security Protocol code value EFh to the ATA Device Server Password Security protocol

(minutes of the March Plenary)

06-147r0 ALL_TG_PT clarification

7 October 2006 T10/1731-D Revision 7a

Working Draft SCSI Primary Commands - 4 (SPC-4) iv

06-175r2 Wrapping and saturating counter definitions

06-191r0 Request for the reservation/assignment of Security Protocol value

06-195r1 Persistent Reservation additional sense code changes

06-196r0 Persistent Reservation REGISTER AND MOVE from unregistered I_T nexus

06-198r0 Making the basic task management model obsolete

06-219r1 New ASC/ASCQs for LOGICAL UNIT ACCESS NOT AUTHORIZED

06-221r3 Peripheral device identifying information

06-223r1 Vendor-specific service actions for MAINTENANCE (IN) and MAINTENANCE (OUT)

06-224r1 Change 'medium changer' to 'media changer'

06-248r1 Remove the PREVENT ALLOW MEDIUM REMOVAL command from SPC-4

06-259r1 Making linked commands obsolete

06-264r2 REQUEST SENSE parameter data clarifications

06-274r1 REQUEST SENSE and Stopped power condition

06-278r0 Fix persistence of SET DEVICE IDENTIFIER

06-298r0 Persistent Reservations correction

06-320r1 Statistics logging for FUA and FUA_NV

06-323r1 Multiple service delivery subsystem editorial tweaks

06-325r0 New ASC/ASCQ for SAT queue cleared condition

06-337r0 Statistics Group Number inconsistencies in SPC-4, SSC-3, and MMC-5

06-350r0 Power conditions state machine clarifications

To the best of the technical editor’s knowledge, all T10 approved proposals have been included in this revision.

2 Revision History

2.1 Revision 0 (1 August 2005)

Revision 0 of SPC-4 is substantially equal to revision 23 of SPC-3. The only differences arise from changes made

in SPC-3 by the ANSI Editor during the INCITS Public Review process.

2.2 Revision 1 (3 September 2005)

The following T10 approved proposals were incorporated in SPC-4 revision 1:

04-198r5 Background Medium Scan

04-262r8 ATA Command Pass-Through

04-371r2 Enable Background Operation Error Reporting Bit

04-372r1 I_T NEXUS RESET task management function

04-397r3 SAT ATA control mode page proposal

05-003r3 VPD Page 83 Identifier s/b Designator Changes

05-015r2 Add new ADC-2 command to set Volume Identifier

05-074r1 SPC-4 Command requirements

05-230r0 Obsolete Per Initiator Port in SPC-4

The sentence introducing the 'Parameter control bits for Informational exceptions log parameter' table was changed

from 'self test results log parameters' to 'informational exceptions log parameter'.

Media Changer usage was added for the LOGICAL UNIT NOT READY, OFFLINE additional sense code.

A missing column separator line was added in Table C.5 (LOG SELECT save options).

T10/1731-D Revision 7a 7 October 2006

v Working Draft SCSI Primary Commands - 4 (SPC-4)

Several purely editorial changes made by the ANSI Editor in the published version of SPC-3 were included in

SPC-4 r01.

2.3 Revision 1a (5 September 2005)

The ASCQ assignment for ATA DEVICE FAILED SET FEATURES was changed from F1h to 71h so that it did not

fall in the vendor specific ASCQ range.

2.4 Revision 2 (15 September 2005)

The following T10 approved proposals were incorporated in this SPC-4 revision:

05-296r0 Persistent Reservations PREEMPT AND ABORT Clarification

05-299r1 Correct Log Page Format Tables in SPC-4, SBC-3, & SAS-2

05-331r1 Allow Mode Sense Through Read Only Persistent Reservation

05-337 (Sep. 2005 CAP minutes) Change IEEE 1212-1994 reference to IEEE 1212-2001

For consistency with other proposals, one instance of ‘background medium read scan’ was changed to

‘background medium scan’.

The page codes for the Background Control mode page and Background Scan Results log page were added to the

Numeric Order Codes annex.

2.5 Revision 3 (19 January 2006)

The following T10 approved proposals were incorporated in this SPC-4 revision:

04-335r2 WORM Tamper Read Enable [additional sense code]

05-026r2 SMC-3: DTE Prevented Medium Removal [additional sense code]

05-142r4 SAT - LOG SENSE command and SMART [additional sense code]

05-156r7 Application ownership of protection information Reference Tag

05-157r9 Security Commands proposal

05-242r2 Combinations of bits and fields in the LOG SELECT CDB and log parameters

05-252r2 Create well known LUN for trusted commands

05-262r3 SSC-3: ASC/ASCQ for Medium Thread Failure [additional sense code]

05-317r3 Remove Attached Media Changer model

05-340r3 Background scan additions

05-360r2 Extended self test completion time value update

05-368r2 Allow more commands through Write Exclusive reservations

05-370r2 NOTIFY (POWER LOSS EXPECTED) Fixes [additional sense code]

05-374r2 Disabling Reassign on Write Long Logical Blocks

05-375r1 EBACKERR bit Error Reporting Clarification

05-379r0 Unit attention condition trivial wording changes

05-380r0 Mode Page Policy MLUS bit correction

05-383r4 Deferred Microcode Downloads

05-406r1 New ASC/ASCQs for Device Port Address

06-018r0 Update SPC-4 version field

In the MAM device type attributes table, code value 020Ah was removed from the reserved list because the same

table show it as allocated to DEVICE MAKE/SERIAL NUMBER AT LAST LOAD.

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