Chapter 16. Scsi Error Reporting; Sense Keys; 16 Scsi Error Reporting; Table 16-1: Sense Key Values - Spectra Logic Spectra 2k Develop Manual

16 SCSI Error Reporting

This section lists the error codes and corresponding meanings that can be returned by
the library. Refer to the tape drive manual for the error codes returned by the tape
drive.
SCSI devices report errors by returning the CHECK CONDITION status after trying to execute a
command received from an initiator. The initiator can then issue a REQUEST SENSE
command to learn more about the error. The sense data returned by the library
includes a Sense Key, an Additional Sense Code, and an Addition Sense Code Qualifier.
These three pieces of information combine to indicate a specific error condition.

Sense Keys

The following table describes the Sense Key valuations returned by the library. The
Sense Key indicates very generally what the nature of the error condition is.

Table 16-1: Sense Key Values

Sense Key Meaning
0h
2h
4h
5h
6h
9h
Explanation
No Sense
Not Ready required to correct this condition. See the additional sense code
Hardware Error performing the command or during a self-test. See the ASC
Invalid command request received or the library is in the wrong
Illegal Request
Unit Attention
Vendor Specific
There is no specific sense key information.
Library cannot be accessed. Operator intervention may be
description for more information.
Library detected a non-recoverable hardware failure while
description for more information.
mode to process the command.
Indicates that the data cartridge inventory may have been
changed.
Indicates vendor-specific sense data for library libraries.
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