ACL 4/52 Software Interface Guide
Document 6211225-03
Version 3.0
3-58
SCSI Interface
Request Sense (03h)
The Request Sense Command allows the host to receive sense data
from the library.
The library supports the reporting of current errors only. A current
error (error code 70h) is returned when the error was generated during
the execution of the command indicating the Check Condition.
The library supports unit attention condition queuing as described in
the SCSI-2 standard. Other details of processing for this command are
consistent with those described in the SCSI-2 standard.
The format of the Request Sense command is shown in Table 38.
Table 38: Request Sense
Command
Logical Unit Number
The Logical Unit Number is 0. This field indicates which logical
unit the command should be sent to.
Allocation Length
This field contains the maximum amount of data which may be
returned to the host. Anything greater than 21 returns the full 21
bytes of data.
Bit/Byte
7
6
5
4
3
2
1
0
0
Operation Code (03h)
1
Logical Unit Number
Reserved (00h)
2
Reserved
(0000h)
3
4
Allocation Length
5
Reserved (00h)
