Product manual

Appendix B. Sense data
The appendix contains the descriptions for sense data returned by the
Request Sense command. For more information on the Request Sense
command, see Section 3.4.3.
B.1 Additional sense data
When the initiator issues a Request Sense command, the drive returns
the following additional sense data.
Bit
Byte
7 6 5 4 3 2 1 0
0 Valid
Error code
1 1 1 0 0 0 X
1 Segment number (00
H
)
2 0 0 ILI 0 Sense key
3–6 Information bytes
7 Additional sense length
8–11 Command specific data
12 Additional sense code
13 Additional sense code qualifier
14 FRU code
15 SKSV
Sense key specific
16–17
18–22 Product-unique sense data (00
H
)
Byte 0 If the
valid bit is one, the information bytes (bytes 3 through 6)
are valid. If the validity bit is zero, the information bytes are not
valid.
If the
error code contains a value of 70
H
, the error occurred on
the command that is currently pending. If the error code contains
a value of 71
H
, the error occurred during the execution of a
previous command for which a good status has already been
returned.
Byte 1 The
segment number is always zero.
ST3655 Family SCSI Drives Product Manual, Rev. A 79