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Page 60
Field Descriptions
Drive Capabilities Control Mode Page
9
10
11
Field
Bytes
Bits
Page
0
0-5
Code
Additional
1
Page
Length
Perf
2
7
DExcept
2
3
Test
2
2
LogErr
2
0
MRIE
3
0-3
Interval
4-7
Timer
Test Flag
8-11
Number
Reserved
The Drive Capabilities Control mode page controls the capabilities of the Viper drive.
A single copy of this page is maintained for all initiators. New Inquiry String Control,
Firmware Test Control, and Data Compression Control will be in effect immediately
after Mode Select. New Operating Systems Support, Extended POST Mode, and
Autounload Mode will be in effect the next power cycle, after Mode Select. This page
persists across power cycles.
Bits
Byte
7
6
0
Reserved
1
2
Test Flag Number
Test Flag Number
Test Flag Number, LSB
Description
1Ch, indicating the Information Exceptions Mode Page.
Always 0Ah, indicating that 10 parameter bytes follow the Page
Length byte.
Always 0, indicating that this feature is not supported.
0 = Exception reporting is enabled.
1 = Exception reporting is disabled (default).
0 = Normal operation (default).
1 = Fail next command (see below) with:
01/5D/FF if Test Flag Numbert 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.
Always 0, indicating that this feature is not supported.
Always 3, so if an exception occurs, the next command (except In-
quiry 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).
Always 0, indicating that this feature is not supported.
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 tape alert flag in log page 2Eh if it is
supported. Otherwise, return Check Condition.
-1 to -64 = Clear the indicated tape alert flag (from 1 to 64) if it is
supported. Otherwise, return Check Condition.
32767
= Set all supported tape alert flags.
All reserved bits must be 0.
5
4
3
Page Code (21h)
Page Length (07h)
Operating Systems Support
LTO SCSI Interface Manual
2
1
0
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