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SCSI Commands: 22BMODE SELECT
Page
102
3.10.14Drive Capabilities Control Mode Page (21h)
The Drive Capabilities Control mode page controls the capabilities of the LTO 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 Auto Unload Mode will be in effect the next power cycle, after
MODE SELECT. This page persists across power cycles.
Byte
Bits
7
6 5 4 3 2 1 0
0
Reserved Page
Code
(21h)
1
Page Length (0Eh)
2
Operating Systems Support
3
Default Block Size
Firmware Test Control 2
STTF
FTC2
4
WORM Control
Extended POST Mode
5
INQUIRY String Control
6
Firmware Test Control
7
Data Compression Control
8
HUO
Auto Unload Mode
9
Firmware Test Control 3
10
Firmware Test Control 4
11
Reserved
12
Reserved
13
Reserved
14
Reserved
15
Reserved
3.10.14.1
Drive Capabilities Page Field Descriptions
Field
Bytes
Bits
Description
Page Code
0
0-5
21h, indicating the Drive Capabilities Control Mode Page.
Additional
Page Length
1
0Eh, indicating that fourteen parameter bytes follow the Page
Length byte.
Operating
Systems
Support
2
0 = Standard LTO (default AU1-SCSI and ISV)
Default Block
Size
3 6-7
00h
01h
02h
03h
Fixed-block size is 512 bytes
Fixed-block size is 1024 byte
Variable-length block size
reserved
Firmware Test
Control-2
(FTC2)
3
3-5,
0-1
0 = disable Factory test mode code (default)
1 = enable Factory test code 1
2 = enable Factory test code 2
Save Trace To
Flash (STTF)
3
2
0 = disable the Save Trace To Flash feature.
1 = enable the Save Trace To Flash feature (default).
WORM
Control
4
6-7
0 = Reading and writing of WORM media allowed
1 = Only reading of WORM media allowed
2 = Reading and writing of WORM media NOT allowed. Cartridge
handled as an incompatible tape.
POST Mode
4
0-5
0 = Enable POST (default)
1 = Disable POST
Summary of Contents for LTO 4
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