User Manual

SCSI Commands Reference Manual, Rev. J 97
www.seagate.com Direct Access Block commands (SPC-5 and SBC-4)
VERSION field
The VERSION field indicates the implemented version of the SPC standard and is defined in table 62 .
NORMACA (Normal ACA Supported
1 The Normal ACA Supported (NORMACA) bit set to one indicates that the device server supports a NACA bit set to one in the CDB CON-
TROL byte and supports the ACA task attribute (see 2.2.7).
0 A NORMACA bit set to zero indicates that the device server does not support a NACA bit set to one and does not support the ACA task
attribute.
HISUP (Hierarchical Support) bit
0 A hierarchical support (HISUP) bit set to zero indicates the SCSI target device does not use the hierarchical addressing model to assign
LUNs to logical units.
1 A HISUP bit set to one indicates the SCSI target device uses the hierarchical addressing model to assign LUNs to logical units.
RESPONSE DATA FORMAT field
A RESPONSE DATA FORMAT field value of two indicates that the data shall be in the format defined in this manual. Response data format values
less than two are obsolete. Response data format values greater than two are reserved.
ADDITIONAL LENGTH field
The ADDITIONAL LENGTH field indicates the length in bytes of the remaining standard INQUIRY data. The relationship between the ADDI-
TIONAL LENGTH field and the CDB ALLOCATION LENGTH field is defined in 2.2.6.
SCCS (SCC Supported) bit
1 An SCC Supported (SCCS) bit set to one indicates that the SCSI target device contains an embedded storage array controller component.
See SCC-2 for details about storage array controller devices.
0 An SCCS bit set to zero indicates that the SCSI target device does not contain an embedded storage array controller component.
Table 62 VERSION field codes
Code Description
00h
The device does not claim conformance to any standard.
02h
Obsolete
03h
The device complies to ANSI INCITS 301-1997 (SPC).
04h
The device complies to ANSI INCITS 351-2001 (SPC-2).
05h
The device complies to ANSI INCITS 408-2005 (SPC-3).
06h
The device complies to ANSI INCITS 513-2015 (SPC-4)
07h
The device complies to T10/BSR INCITS 503 (SPC-5)
Code Description Code Description
01h
Obsolete (SCSI=001b)
07h Reserved
08h - 0Ch
Obsolete (ECMA=001b)
0Dh - 3Fh Reserved
40h - 44h
Obsolete (ISO=01b)
45h - 47h Reserved
48h - 4Ch
Obsolete (ISO=01b & ECMA=001b)
4Dh - 7Fh Reserved
80h - 84h
Obsolete (ISO=10b)
85h - 87h Reserved
88h - 8Ch
Obsolete (ECMA=001b)
8Dh - FFh Reserved