Quantum 10K II - Manual (Page 282)

SCSI Description
Quantum Atlas 10K II Ultra160/m SCSI Hard Disk Drives 5–215
5.46 WRITE (6) Command (0Ah)
The WRITE (6) command requests that the drive write initiator-supplied data to the
medium.
The Command Descriptor Block for the WRITE (6) command is shown in the figure
below; the table that follows describes the data fields.
Bit
Byte
7 6 5 4 3 2 1 0
0 Operation Code (0Ah)
1 Reserved Logical Block Address
2 - 3 Logical Block Address
4 Transfer Length
5 Control
Figure 5–106 WRITE (6) Command Descriptor Block — Data Format
Table 5–100 WRITE (6) Command — Field Descriptions
Field Description
Logical Block Address The address of the first logical block where the Write operation will occur.
Transfer Length The number of contiguous logical blocks of data to transfer. A transfer
length of 0 indicates 256 logical blocks are to be transferred. Any other
value indicates the actual number of logical blocks that will be transferred.