Optical Drive and Library SCSI-2 Command Reference

Jukebox SCSI-2 Command Set
Reserve Command (16H)
Chapter 33-18
Reserve Command (16H)
This command reserves the library for use by a single SCSI initiator
when the library is connected to multiple initiators.
3rdPty When set to 1, the library is reserved for the SCSI
device specified in the Third Party Device ID field.
Third Party
Device ID A third party device ID indicates identification of the
SCSI device the library is to be reserved for.
Element When set to 1, any valid element identified in the
element list is reserved for the initiator making the
request.
When set to 0, all elements are reserved.
Reservation
Identification Identifies each element reservation with a code word
byte.
Element List
Length Defines the size of the element list.
Table 3-17 Reserve Command CDB
Byte 7 6 5 4 3 2 1 0
0 Operation Code (16H)
1 Logical Unit Number
(0)
3rdPty Third Party Device
ID
Element
2 Reservation Identification
3 Element List Length (MSByte)
4 Element List Length (LSByte)
5 Control Byte (0)