SCSI Description
5–48
Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives
INQUIRY Command (12h) (continued)
Table 5–18 Command Support Data Page — Field Descriptions
Field
Description
Support
The value of the Support field describes the type of support that the disk drive
provides for Command Support Data.
Value
Description
000b
Data about the requested SCSI operation code is not
currently available. In this case, all data after Byte 1 is
undefined.
001b
The device does not support the SCSI operation code
requested. In this case, all data after Byte 1 is undefined
010b
Reserved
011b
The device supports the SCSI operation code in
conformance with the SCSI standard.
100b
Vendor-Specific
101b
The device supports the SCSI operation code, but in a
vendor-specific manner
110b
Vendor-Specific
111b Reserved
ISO-Version
Must be 0.
ECMA-Version
Must be 0.
ANSI-Approved
Minimum operating definition for supported command.
Version
CDB Size
This field contains the number of bytes in the CDB for the Operation Code
being requested and the size of the CDB Usage Data in the data that is
returned in response to the INQUIRY.
CDB Usage Data
This field contains information about the CDB for the Operation Code being
queried. Note that the first byte of the CDB Usage Data contains the OpCode
for the operation specified. All of the other bytes of the CDB Usage Data
contain a map for bits in the CDB of the OpCode specified.
NOTE
The bits in the map have a 1-to-1 correspondence to the CDB for the OpCode
being queried. That is, if the device senses a bit as the entire field or as part of
the field of the operation, the map in CDB Usage Data contains a 1 in the
corresponding bit position. If the device ignores a bit or declares a bit as
“reserved” in the CDB for the OpCode being queried, the map has a 0 in that
corresponding bit position. Refer to Table 5-18 for a list of the data returned
for each of the OpCode values that can be sent in the INQUIRY command.
Summary of Contents for Quantum Atlas 10K II 9.2/18.4/36.7/73.4 GB
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Page 321: ...Appendix A Quick Reference A 6 Quantum Atlas 10K II Ultra 160 m SCSI Hard Disk Drives...
Page 363: ...Appendix B SCSI Bus Signal Timing B 42 Quantum Atlas 10K II Ultra 160 m SCSI Hard Disk Drives...
Page 369: ...Index I 4 Quantum Atlas 10K II Ultra 160 m SCSI Hard Disk Drives...
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