Optical Drive and Library SCSI-2 Command Reference

SCSI-2 Drive Command Set
Verify (Group 1) Command (2FH)
Chapter 2 2-93
SCSI-2 Drive Commands
Blk Vfy A Blank Verify bit of 1 indicates the drive verifies that
sectors are erased.
A Blk Vfy bit of 0 indicates the drive verifies written
data integrity.
Verification
Length The Verification Length field specifies the number of
contiguous logical blocks of data to be verified for this
command. A value of 0 indicates that no blocks will be
verified and is not considered an error.
Rel Adr A relative address bit of one indicates that logical block
address specified is a two’s complement offset from the
last logical block address accessed.
A value of 0 indicates that the logical block address is an
absolute address.