SCSI Commands: 29BREAD ATTRIBUTE
Page
131
Bits
Byte
7 6 5 4 3 2 1 0
2
FIRST PARTITION NUMBER
3
NUMBER OF PARTITION AVAILABLE
The AVAILABLE DATA contains two.
The FIRST PARTITION NUMBER field indicates the first partition available on the
specified volume number. It contains zero as there is only one partition.
The NUMBER OF PARTITION AVAILABLE field contains the number of partitions
available on the specified volume number. It contains one as there is only one
partition.
3.17.7
Medium Auxiliary Memory Attributes
The format of each medium auxiliary memory attribute used in for drive response
data and the application client’s parameter data is shown in the table below.
Bits
Byte
7 6 5 4 3 2 1 0
0
(MSB)
1
ATTRIBUTE IDENTIFIER 0
(LSB)
2
READ
ONLY
Reserved FORMAT
3
(MSB)
4
ATTRIBUTE LENGTH (n-4)
(LSB)
5
(MSB)
n
ATTRIBUTE VALUE
(LSB)
Note: This format is used for parameter data of the WRITE ATTRIBUTE command
and the READ ATTRIBUTE command.
Field Bytes
Bits
Description
ATTRIBUTE
IDENTIFIER
0-1
A code identifying the attribute.
Specifies the format of the data in the ATTRIBUTE VALUE field
00b
ATTRIBUTE VALUE field contains binary data
01b
ATTRIBUTE VALUE field contains left aligned ASCII data
10b
ATTRIBUTE VALUE field contains textual data. The
character set is as describe in the TEXT LOCALIZATION
IDENTIFER attribute section found in SPC-3.
FORMAT 2 0-1
11b Reserved
READ ONLY
2
7
0 = attribute is in the read/write state.
1 = attribute is in the read only state.
ATTRIBUTE
LENGTH
3-4
Length in bytes of the ATTRIBUTE VALUE field
ATTRIBUTE
VALUE
5-N The ATTRIBUTE VALUE field contains the current value, for the
READ ATTRIBUTE command, or intended value, for the WRITE
ATTRIBUTE command, of the attribute.
Reserved
All reserved fields must be 0.
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