HP Surestore 80ex Optical Drive and Library SCSI-2 Command Reference - Page 178
Verify Group 5 Command AFH, Blk Vfy, Rel Adr, Verification, Length
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SCSI-2 Drive Commands SCSI-2 Drive Command Set Verify (Group 5) Command (AFH) DPO Blk Vfy Rel Adr Verification Length A Disable Page Out bit of 1 instructs the target not to retain the data in the cache after it has been verified. A DPO bit of 0 instructs the target to retain the data in the cache after it has been verified. This bit is ignored. 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. 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. Specifies the number of contiguous logical blocks of data to be verified. A value of 0 indicates that no blocks will be verified and is not considered an error. Chapter 2 2-141