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SCSI Commands
Message Codes
Completion Status
Sense
Key
ASC
ASCQ
Byte 2
Byte 12
Byte 13
0Bh
45h
00h
0Bh
47h
00h
0Bh
48h
00h
0Bh
49h
00h
0Bh
4Ah
00h
0Bh
4Bh
00h
0Bh
4Eh
00h
0Bh
5Ah
01h
0Dh Volume Overflow
0Dh
00h
02h
The table in Appendix A: Message Codes, beginning on page 126, lists the vendor
unique message codes that are returned in the Field Pointer field (bytes 16-17) when
the SKSV bit is 0.
Code
Message
Description
• The drive is ready to perform any appropriate command.
00h
Good
Status
• The drive remains in any previously set mode.
• The tape position is not changed.
02h
Check
Use the Request Sense command to retrieve status information. Possible
Condition
Sense Keys are:
Code
05h
Message
Select or reselect failure
SCSI parity error
Initiator detected error
message received
Invalid message error
Command phase error
Data phase error
Overlapped commands
attempted
Operator medium removal
request
EOM detected
Message
Description
Illegal Request
The Command Descriptor Block is invalid.
Page 107
Explanation
An attempt to reselect an initiator in
order to complete the command
has failed.
A command failed because an Ini-
tiator Detected Error message was
received.
The command failed because an
invalid message was received by
the drive.
A command could not be executed
because too many parity errors oc-
curred in the Command phase
A command could not be com-
pleted because too many errors oc-
curred during the Data phase.
An initiator selected the drive even
though it already had a command
outstanding in the drive.
The command was aborted be-
cause the eject button was
pressed.
A Write or Write File Marks com-
mand failed because the physical
end of tape was encountered. The
EOM flag will be set.
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