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DLT2000 SCSI Interface
8-106 DLT2000/DLT2700 Cartridge Tape Subsystem
Table 8-5 Sense Keys Used
Sense
Key
Description
0h
No Sense. Check the Filemark/EOM/ILI bits and the ASC/Q bytes.
1h
Recovered Error. This can be caused by rounding of Mode Parameters
on a Mode Select, or to report that R/W error rates are reaching
subsystem specification limits for optimal operation. However, the
device may still be able to continue to function without any unrecovered
errors for a long period of time.
2h
Not Ready. The media is not ready for tape operation commands. Media
might not be present in the drive, or may be in the process of loading or
calibrating.
3h
Medium Error. An unrecoverable write, read, or positioning error has
occurred. Detailed device specific information may be available.
4h
Hardware Error. The Additional Sense Code/Qualifier fields may
provide more specific information.
5h
Illegal Request. The CDB or supplied parameter data had an
unsupported or illegal operation specified. Check bytes 15, 16, and 17.
6h
Unit Attention. Unit Attentions are created after a device reset, if the
media asynchronously becomes ready to this initiator, if another initiator
changes Mode Parameters, and if the firmware is updated.
7h
Data Protected. The current media is write-protected. This can be
because of the Write Protect switch on the cartridge, or if the media is
not CompacTape III.
8h
Blank Check. An EOD or LongGap has been encountered.
Bh
Command Aborted. Generated when a command has been aborted by
the tape device for some reason. Check the ASC/Q bytes.
Dh
Volume Overflow. Physical end of media has been reached during
writing. The initiator ignored the EOM condition and continued writing.
Eh
Miscompare. A compare error occurred during reading by the self-tests
invoked during execution of a Send Diagnostic.