Maxtor 10K V manual 84

Table 5-36Command 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 Com-
	mand Support Data.
	Value	Description
	000b	Data about the requested SCSI operation code is not currently avail-
		able. 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-spe-
		cific 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 5-36for a list of the data returned for each of the OpCode values that can be sent in the INQUIRY command.

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