Quantum DLT 8000 Product Manual page 320

SCSI Commands
RELEASE UNIT (6) Command (17h) (continued)
Table 5–80 RELEASE UNIT (6) Command Data — Field Descriptions
Field Name
3rdPty
Third Party Device ID
MEDIA CHANGER CONSIDERATIONS
The optional Element reservation feature defined for Medium Changer devices in the
SCSI-2 ANSI specification is not supported. The RELEASE command is defined the
same as for the tape drive. The whole loader unit can be released. RESERVE / RELEASE
of the Loader and Drive LUNs are handled independently.
5-176
Description
The third party release option for RELEASE UNIT allows an initiator to
release a logical unit that was previously reserved using the third-
party reservation option. If this bit is 0, then the third-party release
option is not requested. If this bit is set to 1, the drive is released if it
was originally reserved by the same initiator using the third-party
reservation option and if the tape drive is the same SCSI device
specified in the Third Party Device ID field.
Required if the 3rdPty bit is 1. This field specifies the SCSI ID of the
initiator whose third party reservation is being released. This field
must be set if the initiator of the original third party RESERVE is the
source of the RELEASE.
Quantum DLT 8000 Tape System