User Manual

SCSI Commands Reference Manual, Rev. J 246
www.seagate.com Direct Access Block commands (SPC-5 and SBC-4)
3.58 VERIFY (32) command
The VERIFY (32) command (see table 214) requests that the device server verify the specified logical block(s) on the medium.
Each logical block includes user data and may include protection information, based on the VRPROTECT field and the medium
format.
The VERIFY (32) command shall only be processed if type 2 protection is enabled (see
SPC-5).
Table 214 VERIFY (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 (000Ah)
9 (LSB)
10 VRPROTECT DPO
Reserved BYTCHK
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)
VERIFICATION LENGTH. . .
31 (LSB)