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SCSI Commands
Verify Command Operation
Completion Status
Comparison errors cause a Check Condition with the Sense Key set to 0Eh, which
indicates miscompare. The residual byte or block count is reflected in the Request
Sense data.
When the Fixed bit is set, the Verify Length specifies the number of contiguous
blocks to be verified on the tape. When the Fixed bit is cleared, the Verify Length
specifies the number of bytes in the block to verify.
The byte compare starts on a block boundary starting at the current tape block
position.
Code
Message
Description
• The drive is ready to perform any appropriate command.
00h
Good
• The drive remains in any previously set mode.
Status
• The tape is positioned on the EOT side of the last block verified.
02h
Check
Use the Request Sense command to retrieve status information. Possible
Condition
Sense Keys are:
Code
02h
03h
04h
05h
06h
08h
0Eh
Message
Description
Not Ready
No cartridge is in the drive.
Media Error
Unrecoverable data error encountered.
Hardware Error
Parity error on the SCSI bus or drive hardware
failure.
Illegal Request
The Command Descriptor Block is invalid.
Unit Attention
The cartridge was changed, or the drive was re-
set prior to this command.
Blank Check
EOD was encountered.
Miscompare
Verify data miscompare.
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