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
Set Device Identifier Command (A4h)
Quantum SuperLoader 3 Software Interface Guide 137
Set Device Identifier Command (A4h)
The SET DEVICE IDENTIFIER command requests that the device identifier
information in the logical unit be set to the value received in the
SET
DEVICE IDENTIFIER
parameter list. This command is optional for all
device types.
On successful completion of a
SET DEVICE IDENTIFIER command, a unit
attention shall be generated for all initiators except the one that issued the
service action. When reporting the unit attention condition, the additional
sense code shall be set to
DEVICE IDENTIFIER CHANGED.
Figure 80 Set Device Identifier
Descriptor
The Identifier field shall be a vendor specific value, to be returned in
subsequent
REPORT DEVICE IDENTIFIER commands.
Bit
Byte76543210
0
Operation Code (A4h)
1
Reserved Service Action (06h)
2 - 5
Reserved
6 - 9
(MSB)
Parameter List Length
(LSB)
10
Reserved
11
Unused Reserved Flag Link