User Manual

SCSI Commands Reference Manual, Rev. J 255
www.seagate.com Direct Access Block commands (SPC-5 and SBC-4)
3.63 WRITE (32) command
The WRITE (32) command (see table 220) 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.
The WRITE (32) command shall only be processed if type 2 protection is enabled (see SBC-4).
Table 220 WRITE (32) command
Bit
Byte
7 6 5 4 3 2 1 0
0 OPERATION CODE (7Fh)
1 CONTROL
2
Reserved. . .
5
6 Reserved GROUP NUMBER
7 ADDITIONAL CDB LENGTH (18h)
8 (MSB)
SERVICE ACTION (000Bh)
9 (LSB)
10 WRPROTECT DPO FUA Reserved Obsolete Reserved
11 Reserved
12 (MSB)
LOGICAL BLOCK ADDRESS. . .
19 (LSB)
20 (MSB)
EXPECTED INITIAL LOGICAL BLOCK REFERENCE TAG. . .
23 (LSB)
24 (MSB)
EXPECTED LOGICAL BLOCK APPLICATION TAG
25 (LSB)
26 (MSB)
LOGICAL BLOCK APPLICATION TAG MASK
27 (LSB)
28 (MSB)
TRANSFER LENGTH. . .
31 (LSB)