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SCSI Primary Commands - 4 (SPC-4).pdf
1 Approved Documents Included
2 Revision History
2.1 Revision 0 (1 August 2005)
2.2 Revision 1 (3 September 2005)
2.3 Revision 1a (5 September 2005)
2.4 Revision 2 (15 September 2005)
2.5 Revision 3 (19 January 2006)
2.6 Revision 4 (9 March 2006)
2.7 Revision 5 (10 June 2006)
2.8 Revision 5a (14 June 2006)
2.9 Revision 6 (18 July 2006)
2.10 Revision 7 (6 October 2006)
2.11 Revision 7a (7 October 2006)
2.12 Revision 8 (6 January 2007)
2.13 Revision 9 (17 February 2007)
2.14 Revision 10 (21 April 2007)
2.15 Revision 11 (14 May 2007)
Contents
Tables
Figures
Foreword
Introduction
1 Scope
2 Normative references
2.1 General
2.2 Approved references
2.3 References under development
2.4 NIST References
2.5 IETF References
3 Definitions, symbols, abbreviations, and conventions
3.1 Definitions
3.2 Symbols and acronyms
3.3 Keywords
3.4 Conventions
3.5 Bit and byte ordering
3.6 Notation conventions
3.6.1 Notation for byte encoded character strings
3.6.2 Notation for procedure calls
3.6.3 Notation for state diagrams
3.6.4 Notation for binary power multipliers
4 General Concepts
4.1 Introduction
4.2 The request-response model
4.3 The Command Descriptor Block (CDB)
4.3.1 CDB usage and structure
4.3.2 The fixed length CDB formats
4.3.3 The variable length CDB formats
4.3.4 Common CDB fields
4.3.4.1 Operation code
4.3.4.2 Service action
4.3.4.3 Logical block address
4.3.4.4 Transfer length
4.3.4.5 Parameter list length
4.3.4.6 Allocation length
4.3.4.7 Control
4.4 Data field requirements
4.4.1 ASCII data field requirements
4.4.2 Null data field termination and zero padding requirements
4.5 Sense data
4.5.1 Sense data introduction
4.5.2 Descriptor format sense data
4.5.2.1 Descriptor format sense data overview
4.5.2.2 Information sense data descriptor
4.5.2.3 Command-specific information sense data descriptor
4.5.2.4 Sense key specific sense data descriptor
4.5.2.4.1 Sense key specific sense data descriptor introduction
4.5.2.4.2 Field pointer sense key specific data
4.5.2.4.3 Actual retry count sense key specific data
4.5.2.4.4 Progress indication sense key specific data
4.5.2.4.5 Segment pointer sense key specific data
4.5.2.5 Field replaceable unit sense data descriptor
4.5.2.6 Vendor specific sense data descriptors
4.5.3 Fixed format sense data
4.5.4 Current errors
4.5.5 Deferred errors
4.5.6 Sense key and additional sense code definitions
4.6 Secure random numbers
5 Model common to all device types
5.1 Introduction to the model common to all device types
5.2 Important commands for all SCSI device servers
5.2.1 Commands implemented by all SCSI device servers
5.2.2 Commands recommended for all SCSI device servers
5.2.3 Using the INQUIRY command
5.2.4 Using the REPORT LUNS command
5.2.5 Using the TEST UNIT READY command
5.2.6 Using the REQUEST SENSE command
5.3 Implicit head of queue
5.4 Parameter rounding
5.5 Self-test operations
5.5.1 Default self-test
5.5.2 The short and extended self-tests
5.5.3 Self-test modes
5.5.3.1 Self-test modes overview
5.5.3.2 Foreground mode
5.5.3.3 Background mode
5.5.3.4 Features common to foreground and background self-test modes
5.6 Reservations
5.6.1 Persistent Reservations overview
5.6.2 Third party persistent reservations
5.6.3 Exceptions to SPC-2 RESERVE and RELEASE behavior
5.6.4 Preserving persistent reservations and registrations
5.6.4.1 Preserving persistent reservations and registrations through power loss
5.6.4.2 Nonvolatile memory considerations for preserving persistent reservations and registrations
5.6.5 Finding persistent reservations and reservation keys
5.6.5.1 Summary of commands for finding persistent reservations and reservation keys
5.6.5.2 Reporting reservation keys
5.6.5.3 Reporting the persistent reservation
5.6.5.4 Reporting full status
5.6.6 Registering
5.6.7 Registering and moving the reservation
5.6.8 Reserving
5.6.9 Persistent reservation holder
5.6.10 Releasing persistent reservations and removing registrations
5.6.10.1 Summary of service actions that release persistent reservations and remove registrations
5.6.10.2 Releasing
5.6.10.3 Unregistering
5.6.10.4 Preempting
5.6.10.4.1 Overview
5.6.10.4.2 Failed persistent reservation preempt
5.6.10.4.3 Preempting persistent reservations and registration handling
5.6.10.4.4 Removing registrations
5.6.10.5 Preempting and aborting
5.6.10.6 Clearing
5.7 Multiple target port and initiator port behavior
5.8 Target port group access states
5.8.1 Target port group access overview
5.8.2 Asymmetric logical unit access
5.8.2.1 Introduction to asymmetric logical unit access
5.8.2.2 Explicit and implicit asymmetric logical unit access
5.8.2.3 Discovery of asymmetric logical unit access behavior
5.8.2.4 Target port asymmetric access states
5.8.2.4.1 Target port asymmetric access states overview
5.8.2.4.2 Active/optimized state
5.8.2.4.3 Active/non-optimized state
5.8.2.4.4 Standby state
5.8.2.4.5 Unavailable state
5.8.2.4.6 Offline state
5.8.2.5 Transitions between target port asymmetric access states
5.8.2.6 Preference Indicator
5.8.2.7 Implicit asymmetric logical units access management
5.8.2.8 Explicit asymmetric logical units access management
5.8.2.9 Behavior after power on, hard reset, logical unit reset, and I_T nexus loss
5.8.2.10 Behavior of target ports that are not accessible from the service delivery subsystem
5.8.3 Symmetric logical unit access
5.9 Power conditions
5.9.1 Power conditions overview
5.9.2 Power condition state machine
5.9.2.1 Power condition state machine overview
5.9.2.2 PC0:Powered_on state
5.9.2.3 PC1:Active state
5.9.2.4 PC2:Idle state
5.9.2.5 PC3:Standby state
5.10 Medium auxiliary memory
5.11 Application client logging
5.12 Device clocks
5.13 Security Features
5.13.1 Security goals and threat model
5.13.1.1 Overview
5.13.1.2 Security goals
5.13.1.3 Threat model
5.13.1.4 Types of attacks
5.13.1.5 SCSI security considerations
5.13.2 Security associations
5.13.2.1 Principals of security associations
5.13.2.2 SA parameters
5.13.2.3 Creating a security association
5.13.3 Key derivation functions
5.13.3.1 Overview
5.13.3.2 IKEv2-based iterative KDF
5.13.3.3 HMAC-based KDFs
5.13.3.4 AES-XCBC-PRF-128 IKEv2-based iterative KDF
5.13.4 Security algorithm codes
5.14 Identifying information
5.15 Downloading and activating microcode
6 Commands for all device types
6.1 Summary of commands for all device types
6.2 CHANGE ALIASES command
6.2.1 CHANGE ALIASES command introduction
6.2.2 Alias entry format
6.2.3 Alias designation validation
6.2.4 Alias entry protocol independent designations
6.2.4.1 Alias entry protocol independent designations overview
6.2.4.2 NULL DESIGNATION alias format
6.3 EXTENDED COPY command
6.3.1 EXTENDED COPY command introduction
6.3.2 Errors detected before starting processing of the segment descriptors
6.3.3 Errors detected during processing of segment descriptors
6.3.4 Abort task management functions
6.3.5 Descriptor type codes
6.3.6 Target descriptors
6.3.6.1 Target descriptors introduction
6.3.6.2 Identification descriptor target descriptor format
6.3.6.3 Alias target descriptor format
6.3.6.4 Device type specific target descriptor parameters for block device types
6.3.6.5 Device type specific target descriptor parameters for sequential-access device types
6.3.6.6 Device type specific target descriptor parameters for processor device types
6.3.7 Segment descriptors
6.3.7.1 Segment descriptors introduction
6.3.7.2 Segment descriptor processing
6.3.7.3 Block device to stream device operations
6.3.7.4 Stream device to block device operations
6.3.7.5 Block device to block device operations
6.3.7.6 Stream device to stream device operations
6.3.7.7 Inline data to stream device operation
6.3.7.8 Embedded data to stream device operation
6.3.7.9 Stream device to discard operation
6.3.7.10 Verify device operation
6.3.7.11 Block device with offset to stream device operation
6.3.7.12 Stream device to block device with offset operation
6.3.7.13 Block device with offset to block device with offset operation
6.3.7.14 Write filemarks operation
6.3.7.15 Space operation
6.3.7.16 Locate operation
6.3.7.17 Tape device image copy operation
6.3.7.18 Register persistent reservation key operation
6.3.7.19 Third party persistent reservations source I_T nexus
6.4 INQUIRY command
6.4.1 INQUIRY command introduction
6.4.2 Standard INQUIRY data
6.4.3 SCSI Parallel Interface specific INQUIRY data
6.4.4 Vital product data
6.5 LOG SELECT command
6.6 LOG SENSE command
6.7 MANAGEMENT PROTOCOL IN command
6.7.1 MANAGEMENT PROTOCOL IN command description
6.7.2 Management protocol information description
6.7.2.1 Overview
6.7.2.2 CDB description
6.7.2.3 Supported management protocols list description
6.8 MANAGEMENT PROTOCOL OUT command
6.9 MODE SELECT(6) command
6.10 MODE SELECT(10) command
6.11 MODE SENSE(6) command
6.11.1 MODE SENSE(6) command introduction
6.11.2 Current values
6.11.3 Changeable values
6.11.4 Default values
6.11.5 Saved values
6.11.6 Initial responses
6.12 MODE SENSE(10) command
6.13 PERSISTENT RESERVE IN command
6.13.1 PERSISTENT RESERVE IN command introduction
6.13.2 READ KEYS service action
6.13.3 READ RESERVATION service action
6.13.3.1 READ RESERVATION service action introduction
6.13.3.2 Format of PERSISTENT RESERVE IN parameter data for READ RESERVATION
6.13.3.3 Persistent reservations scope
6.13.3.4 Persistent reservations type
6.13.4 REPORT CAPABILITIES service action
6.13.5 READ FULL STATUS service action
6.14 PERSISTENT RESERVE OUT command
6.14.1 PERSISTENT RESERVE OUT command introduction
6.14.2 PERSISTENT RESERVE OUT service actions
6.14.3 Basic PERSISTENT RESERVE OUT parameter list
6.14.4 PERSISTENT RESERVE OUT command with REGISTER AND MOVE service action parameters
6.15 READ ATTRIBUTE command
6.15.1 READ ATTRIBUTE command introduction
6.15.2 ATTRIBUTE VALUES service action
6.15.3 ATTRIBUTE LIST service action
6.15.4 VOLUME LIST service action
6.15.5 PARTITION LIST service action
6.16 READ BUFFER command
6.16.1 READ BUFFER command introduction
6.16.2 Combined header and data mode (00h)
6.16.3 Vendor specific mode (01h)
6.16.4 Data mode (02h)
6.16.5 Descriptor mode (03h)
6.16.6 Echo buffer mode (0Ah)
6.16.7 Echo buffer descriptor mode (0Bh)
6.16.8 Enable expander communications protocol and Echo buffer (1Ah)
6.17 READ MEDIA SERIAL NUMBER command
6.18 RECEIVE COPY RESULTS command
6.18.1 RECEIVE COPY RESULTS command introduction
6.18.2 COPY STATUS service action
6.18.3 RECEIVE DATA service action
6.18.4 OPERATING PARAMETERS service action
6.18.5 FAILED SEGMENT DETAILS service action
6.19 RECEIVE DIAGNOSTIC RESULTS command
6.20 REPORT ALIASES command
6.21 REPORT IDENTIFYING INFORMATION command
6.21.1 REPORT IDENTIFYING INFORMATION command overview
6.21.2 IDENTIFYING INFORMATION parameter data
6.21.3 IDENTIFYING INFORMATION SUPPORTED parameter data
6.22 REPORT LUNS command
6.23 REPORT PRIORITY command
6.24 REPORT SUPPORTED OPERATION CODES command
6.24.1 REPORT SUPPORTED OPERATION CODES command introduction
6.24.2 All_commands parameter data format
6.24.3 One_command parameter data format
6.24.4 Command timeouts descriptor
6.24.4.1 Overview
6.24.4.2 WRITE BUFFER command timeouts descriptor command specific field usage
6.25 REPORT SUPPORTED TASK MANAGEMENT FUNCTIONS command
6.26 REPORT TARGET PORT GROUPS command
6.27 REPORT TIMESTAMP command
6.28 REQUEST SENSE command
6.29 SECURITY PROTOCOL IN command
6.29.1 SECURITY PROTOCOL IN command description
6.29.2 Security protocol information description
6.29.2.1 Overview
6.29.2.2 CDB description
6.29.2.3 Supported security protocols list description
6.29.2.4 Certificate data description
6.29.2.4.1 Certificate overview
6.29.2.4.2 Public Key certificate description
6.29.2.4.3 Attribute certificate description
6.30 SECURITY PROTOCOL OUT command
6.31 SEND DIAGNOSTIC command
6.32 SET IDENTIFYING INFORMATION command
6.33 SET PRIORITY command
6.34 SET TARGET PORT GROUPS command
6.35 SET TIMESTAMP command
6.36 TEST UNIT READY command
6.37 WRITE ATTRIBUTE command
6.38 WRITE BUFFER command
6.38.1 WRITE BUFFER command introduction
6.38.2 Combined header and data mode (00h)
6.38.3 Vendor specific mode (01h)
6.38.4 Data mode (02h)
6.38.5 Download microcode and activate mode (04h)
6.38.6 Download microcode, save, and activate mode (05h)
6.38.7 Download microcode with offsets and activate mode (06h)
6.38.8 Download microcode with offsets, save, and activate mode (07h)
6.38.9 Write data to echo buffer mode (0Ah)
6.38.10 Download microcode with offsets, save, and defer activate mode (0Eh)
6.38.11 Activate deferred microcode mode (0Fh)
6.38.12 Enable expander communications protocol and Echo buffer mode (1Ah)
6.38.13 Disable expander communications protocol mode (1Bh)
6.38.14 Download application log mode (1Ch)
7 Parameters for all device types
7.1 Diagnostic parameters
7.1.1 Diagnostic page format and page codes for all device types
7.1.2 Supported diagnostic pages
7.2 Log parameters
7.2.1 Log page structure and page codes for all device types
7.2.2 Application Client log page
7.2.3 Buffer Over-Run/Under-Run log page
7.2.4 Error Counter log pages
7.2.5 Informational Exceptions log page
7.2.6 Last n Deferred Errors or Asynchronous Events log page
7.2.7 Last n Error Events log page
7.2.8 Non-Medium Error log page
7.2.9 Protocol Specific Port log page
7.2.10 Self-Test Results log page
7.2.11 Start-Stop Cycle Counter log page
7.2.12 Statistics and Performance log pages
7.2.12.1 Statistics and Performance log pages overview
7.2.12.2 General Statistics and Performance log page
7.2.12.3 Group Statistics and Performance (n) log page
7.2.13 Supported Log Pages log page
7.2.14 Supported Log Pages and Subpages log page
7.2.15 Supported Subpages log page
7.2.16 Temperature log page
7.3 Medium auxiliary memory attributes
7.3.1 Attribute format
7.3.2 Attribute identifier values
7.3.2.1 Attribute identifier values overview
7.3.2.2 Device type attributes
7.3.2.3 Medium type attributes
7.3.2.4 Host type attributes
7.4 Mode parameters
7.4.1 Mode parameters overview
7.4.2 Mode parameter list format
7.4.3 Mode parameter header formats
7.4.4 Mode parameter block descriptor formats
7.4.4.1 General block descriptor format
7.4.5 Mode page and subpage formats and page codes
7.4.6 Control mode page
7.4.7 Control Extension mode page
7.4.8 Disconnect-Reconnect mode page
7.4.9 Extended mode page
7.4.10 Extended Device-Type Specific mode page
7.4.11 Informational Exceptions Control mode page
7.4.12 Power Condition mode page
7.4.13 Protocol Specific Logical Unit mode page
7.4.14 Protocol Specific Port mode page
7.5 Protocol specific parameters
7.5.1 Protocol specific parameters introduction
7.5.2 Alias entry protocol specific designations
7.5.2.1 Introduction to alias entry protocol specific designations
7.5.2.2 Fibre Channel specific alias entry designations
7.5.2.2.1 Introduction to Fibre Channel specific alias entry designations
7.5.2.2.2 Fibre Channel world wide port name alias entry designation
7.5.2.2.3 Fibre Channel world wide port name with N_Port checking alias entry designation
7.5.2.3 RDMA specific alias entry designations
7.5.2.3.1 Introduction to RDMA specific alias entry designations
7.5.2.3.2 RDMA target port identifier alias entry designation
7.5.2.3.3 InfiniBand global identifier with target port identifier checking alias entry designation
7.5.2.4 Internet SCSI specific alias entry designations
7.5.2.4.1 Introduction to Internet SCSI specific alias entry designations
7.5.2.4.2 iSCSI name alias entry designation
7.5.2.4.3 iSCSI name with binary IPv4 address alias entry designation
7.5.2.4.4 iSCSI name with IPname alias entry designation
7.5.2.4.5 iSCSI name with binary IPv6 address alias entry designation
7.5.3 EXTENDED COPY protocol specific target descriptors
7.5.3.1 Introduction to EXTENDED COPY protocol specific target descriptors
7.5.3.2 Fibre Channel N_Port_Name EXTENDED COPY target descriptor format
7.5.3.3 Fibre Channel N_Port_ID EXTENDED COPY target descriptor format
7.5.3.4 Fibre Channel N_Port_ID with N_Port_Name checking EXTENDED COPY target descriptor format
7.5.3.5 SCSI Parallel T_L EXTENDED COPY target descriptor format
7.5.3.6 IEEE 1394 EUI-64 EXTENDED COPY target descriptor format
7.5.3.7 RDMA EXTENDED COPY target descriptor format
7.5.3.8 iSCSI binary IPv4 address EXTENDED COPY target descriptor format
7.5.3.9 SAS serial SCSI protocol target descriptor format
7.5.4 TransportID identifiers
7.5.4.1 Overview of TransportID identifiers
7.5.4.2 TransportID for initiator ports using SCSI over Fibre Channel
7.5.4.3 TransportID for initiator ports using a parallel SCSI bus
7.5.4.4 TransportID for initiator ports using SCSI over IEEE 1394
7.5.4.5 TransportID for initiator ports using SCSI over an RDMA interface
7.5.4.6 TransportID for initiator ports using SCSI over iSCSI
7.5.4.7 TransportID for initiator ports using SCSI over SAS Serial SCSI Protocol
7.6 Vital product data parameters
7.6.1 Vital product data parameters overview and page codes
7.6.2 ASCII Information VPD page
7.6.3 Device Identification VPD page
7.6.3.1 Device Identification VPD page overview
7.6.3.2 Device designation descriptor requirements
7.6.3.2.1 Designation descriptors for logical units other than well known logical units
7.6.3.2.2 Designation descriptors for well known logical units
7.6.3.2.3 Designation descriptors for SCSI target ports
7.6.3.2.3.1 Relative target port identifiers
7.6.3.2.3.2 Target port names or identifiers
7.6.3.2.4 Designation descriptors for SCSI target devices
7.6.3.3 Vendor specific designator format
7.6.3.4 T10 vendor ID based designator format
7.6.3.5 EUI-64 based designator format
7.6.3.5.1 EUI-64 based designator format overview
7.6.3.5.2 EUI-64 designator format
7.6.3.5.3 EUI-64 based 12-byte designator format
7.6.3.5.4 EUI-64 based 16-byte designator format
7.6.3.6 NAA designator format
7.6.3.6.1 NAA identifier basic format
7.6.3.6.2 NAA IEEE Extended designator format
7.6.3.6.3 NAA Locally Assigned designator format
7.6.3.6.4 NAA IEEE Registered designator format
7.6.3.6.5 NAA IEEE Registered Extended designator format
7.6.3.7 Relative target port designator format
7.6.3.8 Target port group designator format
7.6.3.9 Logical unit group designator format
7.6.3.10 MD5 logical unit designator format
7.6.3.11 SCSI name string designator format
7.6.4 Extended INQUIRY Data VPD page
7.6.5 Management Network Addresses VPD page
7.6.6 Mode Page Policy VPD page
7.6.7 SCSI Ports VPD page
7.6.8 Software Interface Identification VPD page
7.6.9 Supported VPD Pages
7.6.10 Unit Serial Number VPD page
8 Well known logical units
8.1 Model for well known logical units
8.2 REPORT LUNS well known logical unit
8.3 ACCESS CONTROLS well known logical unit
8.3.1 Access controls model
8.3.1.1 Access controls commands
8.3.1.2 Access controls overview
8.3.1.3 The access control list (ACL)
8.3.1.3.1 ACL overview
8.3.1.3.2 Access identifiers
8.3.1.3.3 Logical unit access control descriptors
8.3.1.4 Managing the ACL
8.3.1.4.1 ACL management overview
8.3.1.4.2 Authorizing ACL management
8.3.1.4.3 Identifying logical units during ACL management
8.3.1.4.4 Tracking changes in logical unit identification
8.3.1.5 Enrolling AccessIDs
8.3.1.5.1 Enrollment states
8.3.1.5.1.1 Summary of enrollment states
8.3.1.5.1.2 Not-enrolled state
8.3.1.5.1.3 Enrolled state
8.3.1.5.1.4 Pending-enrolled state
8.3.1.5.2 ACL LUN conflict resolution
8.3.1.6 Granting and revoking access rights
8.3.1.6.1 Non-proxy access rights
8.3.1.6.2 Proxy access
8.3.1.6.2.1 Proxy tokens
8.3.1.6.2.2 Proxy LUNs
8.3.1.7 Verifying access rights
8.3.1.8 The management identifier key
8.3.1.8.1 Management identifier key usage
8.3.1.8.2 Overriding the management identifier key
8.3.1.8.2.1 The OVERRIDE MGMT ID KEY service action
8.3.1.8.2.2 The override lockout timer
8.3.1.9 Reporting access control information
8.3.1.10 Access controls log
8.3.1.11 Interactions of access controls and other features
8.3.1.11.1 Task set management and access controls
8.3.1.11.2 Existing reservations and ACL changes
8.3.1.12 Access controls information persistence and memory usage requirements
8.3.1.13 Access identifier formats
8.3.1.13.1 Access identifier type
8.3.1.13.2 AccessID access identifiers
8.3.2 ACCESS CONTROL IN command
8.3.2.1 ACCESS CONTROL IN introduction
8.3.2.2 REPORT ACL service action
8.3.2.2.1 REPORT ACL introduction
8.3.2.2.2 REPORT ACL parameter data format
8.3.2.2.2.1 REPORT ACL parameter data introduction
8.3.2.2.2.2 Granted ACL data page format
8.3.2.2.2.3 Granted All ACL data page format
8.3.2.2.2.4 Proxy Tokens ACL data page format
8.3.2.3 REPORT LU DESCRIPTORS service action
8.3.2.3.1 REPORT LU DESCRIPTORS introduction
8.3.2.3.2 REPORT LU DESCRIPTORS parameter data format
8.3.2.4 REPORT ACCESS CONTROLS LOG service action
8.3.2.4.1 REPORT ACCESS CONTROLS LOG introduction
8.3.2.4.2 REPORT ACCESS CONTROLS LOG parameter data format
8.3.2.4.2.1 REPORT ACCESS CONTROLS LOG parameter data introduction
8.3.2.4.2.2 Key Overrides access controls log portion page format
8.3.2.4.2.3 Invalid Keys access controls log portion page format
8.3.2.4.2.4 ACL LUN Conflicts access controls log portion page format
8.3.2.5 REPORT OVERRIDE LOCKOUT TIMER service action
8.3.2.6 REQUEST PROXY TOKEN service action
8.3.3 ACCESS CONTROL OUT command
8.3.3.1 ACCESS CONTROL OUT introduction
8.3.3.2 MANAGE ACL service action
8.3.3.2.1 MANAGE ACL introduction
8.3.3.2.2 The Grant/Revoke ACE page
8.3.3.2.3 The Grant All ACE page
8.3.3.2.4 The Revoke Proxy Token ACE page
8.3.3.2.5 The Revoke All Proxy Tokens ACE page
8.3.3.3 DISABLE ACCESS CONTROLS service action
8.3.3.4 ACCESS ID ENROLL service action
8.3.3.5 CANCEL ENROLLMENT service action
8.3.3.6 CLEAR ACCESS CONTROLS LOG service action
8.3.3.7 MANAGE OVERRIDE LOCKOUT TIMER service action
8.3.3.8 OVERRIDE MGMT ID KEY service action
8.3.3.9 REVOKE PROXY TOKEN service action
8.3.3.10 REVOKE ALL PROXY TOKENS service action
8.3.3.11 ASSIGN PROXY LUN service action
8.3.3.12 RELEASE PROXY LUN service action
8.4 TARGET LOG PAGES well known logical unit
8.5 SECURITY PROTOCOL well known logical unit
8.6 MANAGEMENT PROTOCOL well known logical unit
Annex A
Terminology mapping
Annex B
PERSISTENT RESERVE IN/OUT functionality for RESERVE/RELEASE replacement
B.1 Introduction
B.2 Replacing the reserve/release method with the PERSISTENT RESERVE OUT COMMAND
B.3 Third party reservations
Annex C
Numeric order codes
C.1 Numeric order codes introduction
C.2 Additional sense codes
C.3 Operation codes
C.3.1 Operation codes
C.3.2 Additional operation codes for devices with the EncServ bit set to one
C.3.3 MAINTENANCE (IN) and MAINTENANCE (OUT) service actions
C.3.4 SERVICE ACTION IN and SERVICE ACTION OUT service actions
C.3.5 Variable length CDB service action codes
C.4 Diagnostic page codes
C.5 Log page codes
C.6 Mode page codes
C.7 VPD page codes
C.8 Version descriptor values
C.9 T10 IEEE binary identifiers
Annex D
T10 vendor identification
Working
Draft
Information technology -
SCSI Primary Commands - 4 (SPC-4)
Project
T10/1731-D
Revision 11
14 May 2007
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
Printed Monday, May 14, 2007 2:53 PM
Points of Contact:
T10 Chair
John B. Lohmeyer
LSI Logic
4420 Arrows West Drive
Colorado Springs, CO 80907-3444
Tel:
Email:
(719) 533-7560
lohmeyer@t10.org
T10 Vice-Chair
George O. Penokie
IBM Corporation
MS: 49C
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Tel:
Email: gop@us.ibm.com
(507) 253-5208
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T10/1731-D Revision 11
Revision Information
14 May 2007
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:
Background Medium Scan
ATA Command Pass-Through
Log Command Corrections
Self Describing Command Timeouts
Persistent Reservations PREEMPT AND ABORT Clarification
Statistics and Performance Log Pages
SSC-3: ASC/ASCQ for Medium Thread Failure [additional sense code]
Enable Background Operation Error Reporting Bit
I_T NEXUS RESET task management function
SAT ATA control mode page proposal
VPD Page 83 Identifier s/b Designator Changes
Add new ADC-2 command to set Volume Identifier
SMC-3: DTE Prevented Medium Removal [additional sense code]
SPC-4 Command requirements
SAT - LOG SENSE command and SMART [additional sense code]
Application ownership of protection information Reference Tag
Security Commands proposal
04-198r5
04-262r8
04-335r2 WORM Tamper Read Enable [additional sense code]
04-371r2
04-372r1
04-397r3
05-003r3
05-015r2
05-026r2
05-074r1
05-142r4
05-156r7
05-157r9
05-230r0 Obsolete Per Initiator Port in SPC-4
05-232r2
05-284r4
05-296r0
05-242r2 Combinations of bits and fields in the LOG SELECT CDB and log parameters
05-248r4
05-252r2 Create well known LUN for trusted commands
05-262r3
05-299r1 Correct Log Page Format Tables in SPC-4, SBC-3, & SAS-2
05-317r3 Remove Attached Media Changer model
05-331r1
05-337
05-340r3
05-360r2
05-368r2
05-370r2 NOTIFY (POWER LOSS EXPECTED) Fixes [additional sense code]
05-374r2 Disabling Reassign on Write Long Logical Blocks
05-375r1
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
06-113r2
Allow Mode Sense Through Read Only Persistent Reservation
(Sep. 2005 CAP minutes) Change IEEE 1212-1994 reference to IEEE 1212-2001
Background scan additions
Extended self test completion time value update
Allow more commands through Write Exclusive reservations
Add security protocol and additional sense for tape encryption
Log Parameter Subpages
EBACKERR bit Error Reporting Clarification
iii
Working Draft SCSI Primary Commands - 4 (SPC-4)
14 May 2007
06-127
Assign Security Protocol code value EFh to the ATA Device Server Password Security protocol
(minutes of the March Plenary)
ALL_TG_PT clarification
T10/1731-D Revision 11
Persistent Reservation additional sense code changes
Persistent Reservation REGISTER AND MOVE from unregistered I_T nexus
Peripheral device identifying information
Vendor-specific service actions for MAINTENANCE (IN) and MAINTENANCE (OUT)
Fix persistence of SET DEVICE IDENTIFIER
SPC-4 WRITE BUFFER clarifications
Persistent Reservations correction
Statistics logging for FUA and FUA_NV
Statistics and Performance log pages command cleanup
06-147r0
06-175r2 Wrapping and saturating counter definitions
06-191r0 Request for the reservation/assignment of Security Protocol value
06-195r1
06-196r0
06-198r0 Making the basic task management model obsolete
06-219r1 New ASC/ASCQs for LOGICAL UNIT ACCESS NOT AUTHORIZED
06-221r3
06-223r1
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
06-282r4
06-298r0
06-320r1
06-321r1
06-323r1 Multiple service delivery subsystem editorial tweaks
06-325r0 New ASC/ASCQ for SAT queue cleared condition
06-337r0
06-350r0
06-369r8
06-388r3
06-389r5 Using Public-Key Cryptography for Key Wrapping {new ASC only}
06-390r2
06-411r2 Clear REPORTED LUNS DATA HAS CHANGED on any command
06-454r0 Clarifying Identifying Information Types Requirements
06-455r1
06-465r1
06-484r1
07-005r2
07-008r8
07-022r1 MANAGEMENT PROTOCOL IN command field name fixup
07-056r0
07-077r0
07-080r2
07-100r0 Digital Signing of Microcode
07-111r1 Duplicate persistent reservation wording removal
07-159r1
07-172r1
07-184r0 Request for security protocol
07-196r0
07-203r0
07-216r1 NAA Locally Assigned designator format
Lost SET IDENTIFYING INFORMATION Parameter List Length requirement
Alternative Proposal for Management Transport
Encryption MAM Attribute
SSC-3: Encryption unsupported medium {new ASC only}
Expander Notification of Temporary Shutdown
Statistics Group Number inconsistencies in SPC-4, SSC-3, and MMC-5
Power conditions state machine clarifications
Security Association Model for SPC-4
Security Goals and Threat Model
Add QTSS and QUAS bits to REPORT SUPPORTED TMF
Target Port Group membership clarification
LOG SELECT CDB page/subpage field usage
Block Device Characteristics VPD page and medium rotation rate field
Editorial change: IEEE P1667 to IEEE 1667
Stop fruitless attempts to shackle users via the IALUAE Control Ext. Mode bit
Persistent reservations self-preempting clarification
ALUA/TPGS Disconnected state
T10 approved 07-027r2 (Enabling and disabling Transport Layer Retries), r1 as revised, for inclusion in SPC-4 but
the author decided not to include SPC-4 changes in the final revision. Instead, a new proposal 07-153 was started
to cover the same information.
To the best of the technical editor’s knowledge, all T10 approved proposals have been included in this revision.
Working Draft SCSI Primary Commands - 4 (SPC-4)
iv
T10/1731-D Revision 11
2 Revision History
2.1 Revision 0 (1 August 2005)
14 May 2007
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
04-262r8
04-371r2
04-372r1
04-397r3
05-003r3
05-015r2
05-074r1
05-230r0 Obsolete Per Initiator Port in SPC-4
Background Medium Scan
ATA Command Pass-Through
Enable Background Operation Error Reporting Bit
I_T NEXUS RESET task management function
SAT ATA control mode page proposal
VPD Page 83 Identifier s/b Designator Changes
Add new ADC-2 command to set Volume Identifier
SPC-4 Command requirements
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).
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:
Persistent Reservations PREEMPT AND ABORT Clarification
05-296r0
05-299r1 Correct Log Page Format Tables in SPC-4, SBC-3, & SAS-2
05-331r1
05-337
Allow Mode Sense Through Read Only Persistent Reservation
(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.
v
Working Draft SCSI Primary Commands - 4 (SPC-4)
14 May 2007
T10/1731-D Revision 11
2.5 Revision 3 (19 January 2006)
The following T10 approved proposals were incorporated in this SPC-4 revision:
SMC-3: DTE Prevented Medium Removal [additional sense code]
SAT - LOG SENSE command and SMART [additional sense code]
Application ownership of protection information Reference Tag
Security Commands proposal
04-335r2 WORM Tamper Read Enable [additional sense code]
05-026r2
05-142r4
05-156r7
05-157r9
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
05-317r3 Remove Attached Media Changer model
05-340r3
05-360r2
05-368r2
05-370r2 NOTIFY (POWER LOSS EXPECTED) Fixes [additional sense code]
05-374r2 Disabling Reassign on Write Long Logical Blocks
05-375r1
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
Background scan additions
Extended self test completion time value update
Allow more commands through Write Exclusive reservations
SSC-3: ASC/ASCQ for Medium Thread Failure [additional sense code]
EBACKERR bit Error Reporting Clarification
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.
In the mode page codes and subpage codes table, the subpage code value for page code 00h was changed from
'not applicable' to 'vendor specific'. Since mode page code 00h is vendor specific, the applicability of subpage
codes must also be vendor specific.
The mode page code information in the numeric order codes informative annex was changed to match the
normative code assignments in Mode Parameters subclause. Every code described in the annex as vendor
specific was changed to device-type specific, with the exception of page code 00h, which the normative text
defines as vendor specific.
Several additional sense code definitions were added as requested by the MMC-5 working group.
Reference columns were added to the mode tables for READ BUFFER and WRITE BUFFER. Several instances of
'accept' were changed to 'process' as in 'If the device server is unable to accept process …'
Some (but not all) of the editorial changes in 05-340r2 that were removed by the CAP working group in r3 were
made anyway.
2.6 Revision 4 (9 March 2006)
The following T10 approved proposals were incorporated in this SPC-4 revision:
06-079r1 More Log Page Cleanup
06-127
Assign Security Protocol code value EFh to the ATA Device Server Password Security protocol
(minutes of the March Plenary)
ALL_TG_PT clarification
06-147r0
Working Draft SCSI Primary Commands - 4 (SPC-4)
vi
T10/1731-D Revision 11
14 May 2007
The descriptions of three additional sense codes 10h/01h, 10h/02h, and 10h/03h were modified to match the
nomenclature in SBC-2 and SBC-3 as follows:
a) DATA LOGICAL BLOCK GUARD CHECK FAILED;
b) DATA LOGICAL BLOCK APPLICATION TAG CHECK FAILED; and
c) DATA LOGICAL BLOCK REFERENCE TAG CHECK FAILED
The Operation Codes table in the numerical codes annex was updated to:
a) Make the SECURITY PROTOCOL IN and SECURITY PROTOCOL OUT commands optional for MMC
devices; and
b) Add the OPEN/CLOSE IMPORT/EXPORT ELEMENT command for SMC devices.
The ADC usage of Service Buffers Information log page was added to the numerical codes annex.
The supported protection type (SPT) field in the Extended INQUIRY Data VPD page was updated to match the
SBC-3 usage.
The definition of additional sense code was update to match existing field reference nomenclature.
2.7 Revision 5 (10 June 2006)
The following T10 approved proposals were incorporated in this SPC-4 revision:
Statistics and Performance Log Pages
Add security protocol and additional sense for tape encryption
Log Parameter Subpages
05-248r4
06-108r3
06-113r2
06-191r0 Request for the reservation/assignment of Security Protocol value
06-195r1
06-196r0
06-198r0 Making the basic task management model obsolete
06-219r1 New ASC/ASCQs for LOGICAL UNIT ACCESS NOT AUTHORIZED
06-223r1
06-224r1 Change 'medium changer' to 'media changer'
06-248r1 Remove the PREVENT ALLOW MEDIUM REMOVAL command from SPC-4
Persistent Reservation additional sense code changes
Persistent Reservation REGISTER AND MOVE from unregistered I_T nexus
Vendor-specific service actions for MAINTENANCE (IN) and MAINTENANCE (OUT)
The operation code list in the informative annex was updated to match MMC-5 usage. The log page code list was
updated to match SSC-3.
A reference to the SSCS bit was corrected to the SCCS bit.
The References Under Development subclause was updated.
The MAM device attributes summary table was updated to match the text.
The annex describing Persistent Reservations functionality needed for an implementation equivalent to the model
for Reserve/Release was corrected to note that the PERSISTENT RESERVE IN command has no equivalent in the
Reserve/Release model.
Numerous editorial changes were made as suggested in 06-271r0. Other minor editorial corrections were made as
per requests from T10 members received privately and on the T10 reflector.
vii
Working Draft SCSI Primary Commands - 4 (SPC-4)
14 May 2007
T10/1731-D Revision 11
2.8 Revision 5a (14 June 2006)
Fix errors, both significant and trivial, in r05. Change bars are cumulative for r05 and r05a.
The revision number in 2.7 was corrected.
Log page parameter code nomenclature was made consistent in the various clause 7 format tables.
The Time Interval log parameter was corrected from 0002h to 0003h.Clarifying changes were made to adjust for
moving the command weight, weighted command time, and idle time definitions from the Statistics and Perfor-
mance log pages overview to the Statistics and Performance log parameter definition. The handling of task priority
values of zero was returned to what was defined in 05-248r4. The removal of the TIME INTERVAL DESCRIPTOR field
was reflected throughout. The READ/WRITE COMMAND PROCESSING INTERVAL field references were corrected to
READ/WRITE COMMAND PROCESSING TIME field.
The coded value tables headers were updated to reference SBC-3, SSC-3, MMC-6, and SMC-3. Hopefully, these
will be the active standards at the time SPC-4 is published.
2.9 Revision 6 (18 July 2006)
The following T10 approved proposals were incorporated in this SPC-4 revision:
06-175r2 Wrapping and saturating counter definitions
06-259r1 Making linked commands obsolete
06-264r2 REQUEST SENSE parameter data clarifications
06-274r1 REQUEST SENSE and Stopped power condition
06-278r0
06-298r0
06-320r1
06-323r1 Multiple service delivery subsystem editorial tweaks
06-325r0 New ASC/ASCQ for SAT queue cleared condition
06-337r0
Fix persistence of SET DEVICE IDENTIFIER
Persistent Reservations correction
Statistics logging for FUA and FUA_NV
Statistics Group Number inconsistencies in SPC-4, SSC-3, and MMC-5
In the table showing the format of the Statistics and Performance log parameter, the field names were corrected to
match the field names used in the field definitions that follow the table.
Following a suggestion indicated by 06-323r1, all practical instances of SAM-3 were changed to SAM-4.
2.10 Revision 7 (6 October 2006)
The following T10 approved proposals were incorporated in this SPC-4 revision:
06-221r3
06-350r0
Peripheral device identifying information
Power conditions state machine clarifications
The SECURITY PROTOCOL SPECIFIC field for certificates in the SECURITY PROTOCOL IN command was corrected to
0001h. The erroneous value in previous revisions was 0000h. The Certificate data table title and the cross
reference to the table were corrected in the same subclause.
In the SECURITY PROTOCOL OUT CDB format table, ALLOCATION LENGTH was changed to TRANSFER LENGTH to
match the field definition text following the table.
Working Draft SCSI Primary Commands - 4 (SPC-4)
viii
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