SCSI Commands: 22BMODE SELECT
Page
92
Field
Bytes
Bits
Description
REW 8
0
Always 0, indicating that Report Early Warning for Read type
commands is not supported.
Gap Size
9
Always 0, indicating that there is no concept of inter-block gaps in
the LTO format.
EOD Defined
10
5-7
Always 0, indicating the logical unit's default EOD definition.
EEG
10
4
Always 1, indicating that EOD generation is always enabled.
SEW 10
3
Always 0, The Buffered Mode set in the MODE SELECT Parameter
Header controls drive buffering.
SWP
10
2
Always 0, indicating unsupported Soft Write Protect.
Buffer Size at
Early
Warning
11-13
Always 0, indicating that this cannot be set.
Select Data
Compression
Algorithm
14 0 = Use pass through mode; do not compress data (not
recommended).
1 = Use default auto-compression scheme (recommended default)
WTRE 15
6-7
WORM Tamper Read Enable (WTRE) specifies how the drive
responds to detection of compromised integrity of a WORM
medium when processing a LOCATE, READ, SPACE or
VERIFY command. The WTRE field has no effect upon a non-
WORM medium.
0 = Vendor Unique. Behavior is same as WTRE = 2.
1 = Detection of compromised integrity on a WORM medium shall
not change the processing of the READ, SPACE, LOCATE or
VERIFY commands.
2 = Detection of compromised integrity on a WORM medium shall
result in a CHECK CONDITION for READ, SPACE, LOCATE or
VERIFY. The sense key shall be set to MEDIUM ERROR and
the additional sense code shall be set to WORM MEDIUM
INTEGRITY CHECK (03/30/0D).
3 = Reserved
ASOCWP 15 2 Always
0,
indicating
unsupported Associated Write Protect.
PERSWP
15
1
Always 0, indicating unsupported Persistent Write Protect.
PRMWP
15
0
Always 0, indicating unsupported Permanent Write Protect.
Reserved
All reserved bits must be 0.
Содержание LTO 4
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