Optical Drive and Library SCSI-2 Command Reference

SCSI-2 Drive Command Set
Erase (Group 1) Command (2CH)
Chapter 22-88
Erase (Group 1) Command (2CH)
This command erases data from the specified logical block address. This
command can only be used with rewritable disks.
NOTE The 9.1 and 5.2 Gbyte capacity drives cannot Format, Erase, Write, or
Write and Verify 650 Mbyte and 1.3-Gbyte optical disks. The 2.6 Gbyte
capacity drives cannot Format, Erase, Write, or Write and Verify 650
Mbyte optical disks. If this command is issued with any of these drive/
media combinations, a CHECK CONDITION status will result with the
Sense Key/Additional Sense Code set to Data Protect/Write Protected.
Table 2-78 Erase (Group 1) Command CDB
Byte 7 6 5 4 3 2 1 0
0 Operation Code (2CH)
1 Logical Unit Number
(0)
Reserved (0) ERA Rsvd
(0)
RelAdr
2 Logical Block Address (MSByte)
3 Logical Block Address
4 Logical Block Address
5 Logical Block Address (LSByte)
6 Reserved (0)
7 Transfer Length (MSByte)
8 Transfer Length (LSByte)
9 PBA Reserved (0) Flag Link