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Chapter 8 SCSI Commands
The returned data is as shown in the following table.
Table 8.15.2 : LUN reporting parameter list format
8.16. REQUEST SENSE command (03h)
The REQUEST SENSE command requests the autoloader to transmit sense data
to the host.
Table 8.16.1 : REQUEST SENSE command
For the REQUEST SENSE command to be able to return fault information, the
autoloader responds to the command by returning CHECK CONDITION
STATUS. If there is no valid sense data, the autoloader returns NO SENSE as
the sense key and NO ADDITIONAL SENSE INFORMATION as the
additional sense code.
Sense data is held by the autoloader until returned to the host by a REQUEST
SENSE command. However, this is cleared when another command is received
from the same host. Even if the Allocation Length is less than the valid sense
data, the autoloader does not adjust the Additional Sense Length
correspondingly.
Bit
Byte
7
6
5
4
3
2
1
0
0
(MSB)
LUN List Length(00 00 00 08h)
1
2
3
(LSB)
4
Reserved(0h)
5
Reserved(0h)
6
Reserved(0h)
7
Reserved(0h)
8
(MSB)
LUN(00 00 00 00 00 00 00 00)
15
(LSB)
Bit
Byte
7
6
5
4
3
2
1
0
0
Operation code (03h)
1
Logical unit number(0h)
Reserved
2
Reserved
3
Reserved
4
Allocation length
5
Control(0h)
