
MODE SENSE (6) / (10) Command (1Ah / 5Ah) SDLT 600 SCSI Interface Guide
4-130 January 2005 81-81200-02 REV A01
Table 4-73. TapeAlert MODE SENSE Page — Field Descriptions
Field Name Description
PS Parameters Savable. Always set to 0.
Page Code Identifies the type of MODE SENSE page being transferred. A value of 1Ch
identifies this as the TapeAlert Page.
Page Length Indicates the number bytes in the page, excluding bytes 0 and 1. The length is
returned in MODE SENSE commands and must subsequently be set to the
same value when performing MODE SELECT.
Perf Performance. Not supported. Always set to 0.
EBF Enable Background Function. Not supported. Always set to 0.
EWASC Enable Warning. Not supported. Always set to 0.
DExcpt Disable Information Exception Operations. Default value is 1. When set to 0,
the reporting method specified by the contents of the MRIE field is selected.
When set to 1, all information exception operations are disabled and the drive
ignores the contents of the MRIE field. When in this mode, the software polls
the TapeAlert Log page.
Test Always set to 0.
LogErr Error Log. Not supported.
MRIE Method for Reporting Informational Exceptions. The drive uses the contents of
this field to report information about exception conditions. Four methods are
available:
Value Method
00h No reporting of Informational Exception Conditions. The drive
does not report information exception conditions.
03h Conditionally Generate Recovered Error. This value is the default.
The drive reports informational exception conditions, if reports of
recovered errors are allowed, by returning CHECK CONDITION
status on the next SCSI command (except INQUIRY and
REQUEST SENSE commands) following detection of the
condition. The Sense Key is set to RECOVERED ERROR with
the Additional Sense Code set to 5Dh / 00h (TapeAlert event).
The SCSI command with CHECK CONDITION completes
without error before the report of any exception condition and
does not need to be repeated.
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