Product manual

3.4.7 Write (6) command (0A
H
)
When the drive receives the Write command, it writes the initiator’s data
to the disc.
The Read-Write Error Recovery page (01
H
) determines how the drive
handles bad sectors during a Write command. The Read-Write Error
Recovery page is discussed in Appendix C.1 on page 98. If the system
supports disconnection, the drive can disconnect and reconnect while
executing this command. The drive disconnects when either an internal
error-recovery procedure is required or the drive’s internal data buffer is
full. The buffer-empty ratio in the Disconnect/Reconnect page deter-
mines when the drive reconnects. Section C.2 on page 100 documents
the Disconnect/Reconnect page.
If there is a reservation access conflict, this command terminates with a
reservation conflict status and no data is written. For more information
about the reservation conflict status, see Section 3.2. on page 35.
Note.
The Write (6) command cannot access all logical blocks on the
drive. The Write (10) command must be used to access all
logical blocks.
Bytes
Bits
76543210
000001010
1 LUN Logical block address (MSB)
2 Logical block address
3 Logical block address (LSB)
4 Transfer Length
500000000
Bytes 1–3
The
logical block address specifies the logical block where
the write operation begins.
Byte 4
The
transfer length specifies the number of contiguous logical
blocks of data to be transferred. A transfer length of zero
indicates that 256 logical blocks are to be transferred. Any other
value indicates the number of logical blocks to be transferred.
46 Medalist Pro 2160N/2160WC Product Manual, Rev. A