SCSI Commands: 23BMODE SENSE
Page
111
3.11.4
MODE SENSE Block Descriptor
Byte
Bits
7 6 5 4 3 2 1 0
0
Density Code
1
Reserved
2
Reserved
3
Reserved
4
Reserved
5
(MSB)
6
7
Block Length
(LSB)
3.11.4.1
Block Descriptor Field Descriptions
Field Bytes
Bits
Description
LTO4 drive
LTO3 drive
LTO2 = 42h (read only)
LTO1 = 40h (read only)
LTO3 = 44h
LTO2 = 42h
LTO4 = 46h
LTO3 = 44h
Density
Code
0
Cartridge not present or not ready = 00h
Block
Length
5-7
0 = Variable length block mode. The Fixed bit in READ and WRITE
commands must be 0.
1 to FFFFFFh = The length of the fixed-length block to be read or
written when the Fixed bit is set in a Read or Write command.
Reserved
All reserved bits must be 0.
Note: Use Report Density command to determine all densities supported by the drive and density of
the tape currently in the drive.
3.11.5
Mode Parameter Pages
There are several mode parameter pages that allow you to retrieve different drive
parameters. The format of these pages is described in the MODE SELECT
command, starting on page 48. The following mode parameter pages are supported:
Mode Parameter Page
See Page
Disconnect/Reconnect Mode Page (02h)
84
Control Mode Page (0Ah)
88
Data Compression Control Mode Page (0Fh)
90
Sequential Access Device Configuration Mode Page (10h)
91
Protocol Specific Logical Unit Mode Page (18h) (FC or SAS drives only)
91
Protocol Specific Port Mode Page (19h) (FC or SAS drives only)
93
Information Exceptions Mode Page (1Ch)
91
Medium Configuration Mode Page (1Dh)
76
Drive Capabilities Control Mode Page (21h)
101
Interface Control Mode Page (22h)
101
Содержание LTO 4
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