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SCSI Commands: 38BREPORT SUPPORTED OPERATION CODES
Page
164
Field Bytes
Bits
Description
SERVACTV
5
0
The Service Action Valid bit:
0 = Indicates Operation Code does not have service actions and
Service Action field contents are reserved.
1 = Indicates Operation Code has service actions and contents of
Service Action field are valid.
CDB Length
6-7
The length of the command CDB in bytes.
The Single Command parameter data
Byte
Bits
7 6 5 4 3 2 1 0
0
Reserved
1
Reserved Support
2
(MSB)
3
CDB Size (n-3)
(LSB)
4
(MSB
n
CDB Usage Data
(LSB)
3.26.2.2
REPORT SUPPORTED OPERATION CODES Single Command
Field Descriptions
Field Bytes
Bits
Description
Support 1 0-2
000b = Data for the requested command is not currently available.
All data after byte 1 is not valid.
001b = The requested command is not supported. All data after
byte 1 is undefined.
010b = Reserved
011b = The drive supports the requested command in conformance
with the SCSI standard.
100b = Reserved
101b = The drive supports the requested command in a vendor
specific manner.
110b – 111b = Reserved
CDB Size
2-3
The size of the CDB Usage Data field in the parameter data, and
the number of bytes in the CDB for the command being queried.
CDB Usage
Data
4-n Information about the CDB of the command being queried. This
information is a usage bitmap describing the non-reserved areas in
the CDB.
Summary of Contents for LTO 4
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