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Tape drive logs
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Sense Key The SCSI equivalent of Sense Key as defined by the SCSI standard.
ASC/ASCQ The SCSI equivalent of Additional Sense Code (ASC) and Additional Sense Code
Qualifier (ASCQ) as defined by the SCSI standard.
Field Description
Sense Key Definition
0h No Sense. This is an indicator that the drive did not have an error but that the host system may have
sent an incorrect command or that a field in the changing parameters information was not correct. This
is also an indicator that a request to move the tape past an EOD or a read of a filemark may have been
attempted.
1h Recovered Error. The drive had a recoverable error. This is one in which the drive detected something
that may not be correct, but that the problem would not prevent the drive from functioning correctly. It
may be just an indicator of an event that the drive was able to correct. For example, a Cleaning Requested
status shows that the drive requires a cleaning tape, but still functions correctly without it. This sense key
is only recorded in the logs if it is a Cleaning Requested condition.
2h Not Ready. The drive is not ready for tape functionality. This is not reported in the drive log pages.
3h Medium Error. The drive was not able to read or write successfully to the tape. Look at the Event Logs
and correlate the events with media and system logs to determine if this is due to media or the drive.
This sense key is recorded in the drive logs.
4h Hardware Error. The drive has detected an error condition related to the hardware. You need to refer
to the Sense Key and ASCQ, along with other event logs to best understand the error. Based on the log
information, replace the appropriate component. This sense key is logged each time it is reported.
5h Illegal Request. The requested command had an incorrect parameter defined and you need to review
the actual command and parameter to determine what was wrong. This is not logged in the drive logs.
6h Unit Attention. A condition exists that impacts the drive's functionality. Examples include a SCSI Bus
reset or a transition from Ready to Not Ready. A reset is required because the Mode Page setting may
change after a reset and the host needs to know that. This sense key is not logged in the drive logs.
7h Data Protected. The media currently in the drive is write-protected. This can be a hardware or software
write protect. This sense key is not logged in the drive logs.
8h Blank Check. While reading, writing, or doing a search on the media, the drive encountered a EOD mark
or a long gap was detected. A long gap may be the result of a drive stopping the write command without
doing the correct command termination. This sense key is not reported in the drive logs.
Bh Aborted Command. Command aborted. Generated when the drive aborts a command.
Dh Volume Overflow. The tape drive has reached the physical EOT and can no longer write data to the tape.
This sense key is not reported in the drive logs.
Eh Miscompare. During the drive self tests, the drive detected a data miscompare while executing the
internal test. This error would be an indicator that the drive should be returned for repair.
ASC/ASCQ Description Suggested Action
0C/00 Write Error. Drive was not able to
successfully write the data to the tape.
Problem may be the tape cartridge or the drive.
If the problem continues, contact customer support.