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)
76 SCSI Commands
Report LUNS – A0h
What the Library Does With This Command
The library will return a list of the logical units that it supports. When this command is sent to a DA blade
controller device logical unit or media changer device logical unit, at LUN 0, it will return a list of all additional
logical units that are available. This list will primarily be media changer devices representing the configured
Logical Libraries. When this command is sent to any of the media changer device logical units, they will only
report themselves.
Command Usage
This command can be used to retrieve what Logical Unit Numbers are supported to avoid scanning for all
possible numbers. It is useful for identifying the various Logical Libraries that may be configured.
Report LUNS CDB Format
The REPORT LUNS CDB format is shown in the following table.
Allocation Length – This field must be set to a minimum of 10h (16 bytes) to retrieve information for at least
a single LUN.
Table 74 REPORT LUNS CDB format
Bit
Byte
76543210
0 Op Code (A0h)
1 Reserved
2 Reserved
3 Reserved
4 Reserved
5 Reserved
6
:
9
Allocation Length
10 Reserved
11 Control