Set Device Identifier (A4) - IBM Ultrastar 36LZX Specifications

8.35 SET DEVICE IDENTIFIER (A4)

Byte
7 6
0
1 Reserved = 0
2
3
4
5
6 (MSB)
|
9
10
11 VU = 0
Figure 152. SET DEVICE IDENTIFIER(A4)
The SET DEVICE IDENTIFIER command requests that the device identifier information be set to the
value received in the SET DEVICE IDENTIFIER parameter list.
On successful completion of a SET DEVICE IDENTIFIER command a unit attention is generated for all
initiators except the one that issued the service action. When reporting the unit attention condition the
additional sense code is set to DEVICE IDENTIFIER CHANGED.
Ÿ
Parameter List Length field specifies the length in bytes of the Identifier that is transferred from the
host system to the target. The maximum value for this field is 512 bytes. A parameter list length of
zero indicates that no data is transferred, and that subsequent REPORT DEVICE IDENTIFIER
commands return an Identifier length of zero.
Bit
5 4 3
Command Code = A4h
Service Action = 06h
Reserved = 0
Parameter List Length
Reserved = 0
Reserved = 0
Ultrastar 36LZX hard disk drive specifications
2 1 0
(LSB)
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