HP Surestore 80fx Optical Drive and Library SCSI-2 Command Reference - Page 205

Jukebox SCSI-2 Command Set Reserve Command (16H) Table 3-17 Reserve Command (16H) This command reserves the library for use by a single SCSI initiator when the library is connected to multiple initiators. Reserve Command CDB Byte 7 6 5 4 3 2 1 0 Operation Code (16H) 1 Logical Unit Number 3rdPty Third Party Device (0) ID 2 Reservation Identification 3 Element List Length (MSByte) 4 Element List Length (LSByte) 5 Control Byte (0) 0 Element 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. 3-18 Chapter 3