HP Surestore 80fx Optical Drive and Library SCSI-2 Command Reference - Page 168

SCSI-2 Drive Command Set Write (Group 5) Command (AAH) SCSI-2 Drive Commands NOTE Table 2-123 NOTE Write (Group 5) Command (AAH) This command writes data starting at the specified logical block address. The Mode Select Commands (15H, 55H) impact read, write, format, and erase commands. Write (Group 5) Command CDB Byte 7 6 5 4 3 2 1 0 0 Operation Code (AAH) 1 Logical Unit Number DPO FUA EBP Rsvd RelAdr (0) (0) 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 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 Chapter 2 2-131