User's Guide
Table Of Contents
- SCSI Command Support
- SCSI Commands
- Initialize Element Status - 07h
- Initialize Element Status With Range - E7h
- Inquiry - 12h
- Log Sense - 4Dh
- Mode Select (6) - 15h
- Mode Select (10) - 55h
- Mode Sense (6) - 1Ah
- Mode Sense (10) - 5Ah
- Mode Pages
- Move Medium – A5h
- Persistent Reserve In – 5Eh
- Persistent Reserve Out – 5Fh
- Position to Element – 2Bh
- Prevent Allow Medium Removal – 1Eh
- Read Buffer – 3Ch
- Read Element Status – B8h
- Release Element (6) – 17h
- Release Element (10) – 57h
- Report LUNS – A0h
- Request Sense – 03h
- Request Volume Element Address - B5h
- Reserve Element (6) - 16h
- Reserve Element (10) - 56h
- Send Diagnostic - 1Dh
- Send Volume Tag - B6h
- Test Unit Ready (00h)
- Write Buffer (3Bh)
78 SCSI Commands
Request Sense – 03h
What the Library Does With This Command
The library returns eighteen bytes of sense data to the requesting initiator. The data is preserved until either
the REQUEST SENSE command or any other command is received. The library can queue multiple Unit
Attentions for processing.
Command Usage
This command should be issued whenever the initiator receives a CHECK CONDITION from the library. It
should continue to be issued until all check conditions have been cleared.
Request Sense CDB Format
The REQUEST SENSE CDB format is shown in the following table.
Allocation Length – This field specifies the number of sense bytes requested by the initiator.
Table 76 REQUEST SENSE CDB format
Bit
Byte
76543210
0 Op Code (03h)
1 Logical Unit Number Reserved
2 Reserved
3 Reserved
4 Allocation Length
5 Control