SCSI Commands
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If the Immediate (Immed) flag is 1, then the drive validates the command and waits
for any previous command from any host to complete, including any immediate
commands currently being processed, and for any buffered data to be flushed to
tape. It will then report a deferred error for any preceding command or buffered data
if appropriate. If there is no deferred error, the drive reports good status and initiates
the command. If the Immediate flag is 0, status is not returned until after the
command has completed.
Completion Status
Code
Message
Description
00h
Good Status
♦
The tape is positioned as requested.
♦
The drive remains in any previously set modes.
♦
The drive is ready to perform any appropriate command.
Note: If IMMED is one, then Good status only indicated that the com-
mand is valid.
02h
Check Condition
Use the Request Sense command to retrieve status information. Possi-
ble Sense Keys are:
Code
Message
Description
02h
Not Ready
No cartridge is in the drive, cartridge is in
the Loadable position or the cartridge is
in the Medium Auxiliary Memory Acces-
sible Position
04h
Hardware Error
Parity error on then SCSI bus, or drive
hardware failure detected.
05h
Illegal Request
Medium Removal Prevention has been
set, or the command Descriptor Block is
invalid.
06h
Unit Attention
The cartridge was loaded or unloaded to
the Medium Loadable, Medium Auxiliary
Memory Accessible Or Medium Loaded
at BOT positions.
