User's Guide
Table Of Contents
- Preface
- Theory of Operation
- Media Changer Commands
- Overview of Command and Status Processing
- Media Changer Command Descriptions
- Initialize Element Status Command (07h)
- Inquiry Command (12h)
- Load Unload Command (1Bh)
- Log Sense Command (4Dh)
- Mode Select (6) / (10) Command (15h / 55h)
- Mode Sense (6) / (10) Command (1Ah/ 5Ah)
- Move Medium Command (A5h)
- Persistent Reserve In Command (5Eh)
- Persistent Reserve Out Command (5Fh)
- Position to Element Command (2Bh)
- Prevent/Allow Medium Removal (1Eh)
- Read Buffer Command (3Ch)
- Read Element Status Command (B8h)
- Release Element (10) Command (57h)
- Release Unit (6) Command (17h)
- Report Device Identifier Command (A3h)
- Report LUNS Command (A0h)
- Request Sense Command (03h)
- Reserve Element (10) Command (56h)
- Reserve Element (6) Command (16h)
- Send Diagnostic Command (1Dh)
- Set Device Identifier Command (A4h)
- Test Unit Ready Command (00h)
- Write Buffer Command (3Bh)
- Index
Chapter 2 Media Changer Commands
Report LUNS Command (A0h)
Quantum SuperLoader 3 Software Interface Guide 120
Report LUNS Command (A0h)
The REPORT LUNS command requests that the peripheral device logical
unit numbers of known logical units in the target be sent to the
applications client. The command only returns information about the
logical units to which commands may be sent.
Figure 71 Report LUNS
Descriptor
Table 56 Report LUNS
Command Descriptor Block
Bit
Byte765 4 3210
0
Operation Code (A0h)
1 - 5
Reserved
6 – 9
(MSB)
Allocation Length
(LSB)
10
Reserved
11
Unused Reserved Flag Link
Field Description
Allocation
Length
If the
Allocation Length is not sufficient to contain the logical unit number
values for all configured logical units, the device server still reports as many
logical number values as will fit in the
Allocation Length.
The format of the report of configured logical units is shown in figure 72
.