Optical Drive and Library SCSI-2 Command Reference
SCSI-2 Drive Command Set
Numerical List of Commands
Chapter 2 2-5
SCSI-2 Drive Commands
3BH Write Buffer Writes data to the controller 
data buffer.
2-99
3CH Read Buffer Reads data from the controller 
data buffer
2-102
3EH Read Long Reads data from the specified 
logical block address including 
ECC data
2-104
3FH Write Long Writes data to the specified 
logical block address without 
using the ECC generation 
circuitry
2-106
4CH Log Select Clears drive resident logs and 
odometers
2-109
4DH Log Sense Reads drive resident logs and 
odometers
2-111
55H Mode Select Sets optical disk, drive unit, or 
controller unit parameters
2-122
Table 2-2 Group 1 and 2 Commands (10-byte command) 
Code
(hex.)
Name Description  Page 
Number 










