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SCSI Description
Maxtor Atlas 10K III 5-165
The SET DEVICE IDENTIFIER command requests that the device identifier
information in the logical unit be set to the value send via the SET DEVICE
IDENTIFIER command’s parameter list. The data format and field descriptions are
shown in Table 5-201 and Table 5-202 respectively.
Upon successful completion of a SET DEVICE IDENTIFIER command, a Unit
Attention is generated for all initiators except the one that issued the command.
SET DEVICE IDENTIFIER Command Descriptor Block-Data Format
SET DEVICE IDENTIFIER Command Descriptor Block-Field Descriptions
The SET DEVICE IDENTIFIER command’s parameter list contains Identifier to be
set by the logical unit to which the command is sent. The parameter list is shown
below in Table 5-203 and the field descriptions are shown in Table 5-204.
SET DEVICE IDENTIFIER Parameter List-Data Format
SET DEVICE IDENTIFIER Parameter List-Field Descriptions
0 Operation Code (A4h)
1 Reserved Service Action (06h)
2 – 5 Reserved
6 – 9
(MSB)
Parameter List Length
(LSB)
10 Reserved
11 Control
Service Action . Any other value forces Check Condition, Illegal Request.
Parameter List Length
This field specifies the length, in bytes, of the Identifier to be transferred
from the application client to the device server. The maximum value for
this field is 64 bytes. A parameter list length of 0 indicates that no data
will be transferred, and that subsequent REPORT DEVICE IDENTIFIER
commands will return an Identifier length of 0. If the parameter list length
exceeds 64 bytes, then the drive returns a Check Condition status with
the sense key set to Illegal Request, and an additional sense code of In-
valid Field in CDB.
0 – n
(MSB)
Identifier
(LSB)
Identifier
The value reported in this field is the data to be returned by all
subsequent REPORT DEVICE IDENTIFIER commands, until a new
SET DEVICE IDENTIFIER command is issued that changes the
data.