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180
[4]
The Pad field contains invalid data and shall be ignored.
Note. The Pad field is included to accommodate initiators which require the intermediate data to be
aligned on a particular memory boundary.
[5]
The Intermediate Data field contains data that shall be used in the Xor operation with the data from the
specified source devices. The length of the data is equal to the Rebuild/Regenerate length multiplied by
the block size.
Table 138:
Source Descriptor format
Bit
7
Byte
0
(MSB
:
7
8
(MSB
:
11
12
(MSB
:
15
Notes.
[1]
The Source Device Address field specifies a SAM-compliant target identifier of a device that is a data
source.
[2]
The Source Starting Logical Block Address field indicates the starting Logical Block Address to use when
reading data from the source specified in the Source Device Address field.
6
5
Source Device Address [1]
Source Starting Logical Block Address [2]
SCSI Interface Product Manual, Rev. J
4
3
Reserved
2
1
(LSB)
(LSB)
(LSB)
0
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