SCSI Commands: 22BMODE SELECT
Page
100
Field
Bytes
Bits
Description
EBF
2
5
Parallel SCSI Interface: Always 0.
Fibre Channel Interface:
0 = Background function is disabled.
1 = Background function is enabled.
EWasc
2 4 Always
1,
indicating
that
TapeAlert warning flags are reported.
DExcept
2
3
0 = Exception reporting is enabled.
1 = Exception reporting is disabled (default).
Test
2
2
0 = Normal operation (default).
1 = Fail next command (see below) with:
01/5D/FF if Test Flag Number is 0.
01/5D/00 if Test Flag Number indicates a valid value (see below).
This will be reported only one time between resets. Test bit and
Test Flag Number are cleared right away after the MODE SELECT
and are displayed as 0s in MODE SENSE.
LogErr
2 0 Always
0,
indicating
that this feature is not supported.
MRIE 3 0-3
Always 3, so if an exception occurs, the next command (except
INQUIRY and REQUEST SENSE) will get check condition status and
the Sense Key will be set to Recovered Error (01) and the Additional
Sense will be set to Failure Prediction Threshold Exceeded (5D00).
Interval
Timer
4-7
Always 0, indicating that this feature is not supported.
Test Flag
Number
8-11
This field is in 2’s complement.
0 = No flag number. If Test = 1, then Test bit will be cleared only in
MODE SENSE when 01/5D/FF is returned.
If Test = 0 and Test Flag Number is not 0, return Check Condition.
If Test = 1 and Test Flag Number is one of the following:
1 to 64 = Set the indicated TapeAlert flag in log page 2Eh if it is
supported. Otherwise, return Check Condition.
-1 to -64 = Clear the indicated TapeAlert flag (from 1 to 64) if it is
supported. Otherwise, return Check Condition.
32767 = Set all supported tape alert flags.
Reserved
All reserved bits must be 0.
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