User Manual

SCSI Commands Reference Manual, Rev. J 253
www.seagate.com Direct Access Block commands (SPC-5 and SBC-4)
3.61 WRITE (12) command
The WRITE (12) command (see table 218) requests that the device server transfer the specified logical block(s) from the data-out
buffer and write them. Each logical block transferred includes user data and may include protection information, based on the
WRPROTECT field and the medium format. Each logical block written includes user data and, if the medium is formatted with
protection information enabled, protection information.
See the WRITE (10) command (see 3.60) for the definitions of the fields in this command.
Table 218 WRITE (12) command
Bit
Byte
7 6 5 4 3 2 1 0
0
OPERATION CODE (AAh)
1
WRPROTECT DPO FUA Reserved Obsolete Obsolete
2
(MSB)
LOGICAL BLOCK ADDRESS
. . .
5
(LSB)
6
(MSB)
TRANSFER LENGTH
. . .
9
(LSB)
10
Restricted for
MMC-5
Reserved GROUP NUMBER
11
CONTROL