Quantum LTO 3 User Manual page 87

Quantum lto 3: user guide
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SCSI Commands: 22BMODE SELECT
3.10.1.3
3.10.1.4
Field
Bytes
Parameter List
4
Length
Reserved
Control
5
A value in the Parameter List Length field that truncates a parameter list causes the
drive to return a Check Condition, and the REQUEST SENSE data is set to Illegal
Request.
MODE SELECT(10) Command Descriptor Block
Bits
Bytes
7
0
1
Ignored LUN
2
3
4
5
6
7
(MSB)
8
9
MODE SELECT(10) CDB Field Descriptions
Field
Bytes
Bits
Operation
1
Code
Ignored
1
5-7
Logical
Unit
PF
1
4
Parameter
7-8
List Length
Reserved
Control
9
A value in the Parameter List Length field that truncates a parameter list causes the
drive to return a Check Condition, and the REQUEST SENSE data is set to Illegal
Request.
Bits
Description
Specifies the number of bytes in the MODE SELECT parameter
list to be transferred from the host to the drive. A value of 0 is a
valid entry and indicates no data.
All reserved bits must be 0.
See SCSI Command Control Byte Format on page 25.
6
5
4
Operation Code (55h)
PF
Reserved
Reserved
Reserved
Reserved
Reserved
Parameter List Length
Control
Description
The Operation Code for MODE SELECT is 55h.
The LUN field is vestigial from the SCSI-1 standard and is ignored.
Always 1, indicating SCSI-2 format.
Specifies the number of bytes in the MODE SELECT parameter list
to be transferred from the host to the drive. A value of 0 is a valid
entry and indicates no data.
All reserved bits must be 0.
See SCSI Command Control Byte Format on page 25.
3
2
1
Reserved
Page 79
0
(LSB)

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