
Chapter 3 Media Changer Commands
Set Device Identifier Command (A4h)
168 Quantum ATL SuperLoader Software Interface Guide
Set Device Identifier Command (A4h) 3
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 87 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
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