
SCSI-2 Drive Command Set
Write and Verify (Group 5) Command (AEH)
Chapter 2 2-137
SCSI-2 Drive Commands
Write and Verify (Group 5) Command (AEH)
Writes data to the optical disk and then verifies the write by reading the
written data and checking the error correction code.
NOTE The Mode Select Commands (15H, 55H) impact read, write, format, and
erase commands.
NOTE For Write-Once media, Byte 11, Bit 7 and Bit 6 are reserved (0).
DPO A Disable Page Out bit of 1 instructs the target not to
store the data in the cache after it has been transferred
to the media.
A DPO bit of 0 instructs the target to store the data in
the cache after it has been transferred to the media.
This bit is ignored.
Table 2-125 Write and Verify (Group 5) CDB
Byte 7 6 5 4 3 2 1 0
0 Operation Code (AEH)
1 Logical Unit Number (0) DPO Rsvd (0) EBP Rsvd (0) RelAdr
2 Logical Block Address (MSByte)
3-4 Logical Block Address
5 Logical Block Address (LSByte)
6 Transfer Length (MSByte)
7-8 Transfer Length
9 Transfer Length (LSByte)
10 Reserved (0)
11 PBA ErsCntl Reserved (0) Flag Link
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