Quantum ATL SuperLoader ATL, User Manual

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Chapter 3 Media Changer Commands
Release Element (10) Command (57h)
Quantum ATL SuperLoader Software Interface Guide 141
Table 60 Release
(10) Command
Field Name Description
3rdPty 3rdPty Release allows an initiator to release a logical
unit that was previously reserved. If the value in this
field is 0, third party release is not requested. If
3rdPty = 1, then the device server shall release the
specified logical unit, but only if the initiator ID,
3rdPty bit, and third party device ID are identical
when compared to the RESERVE command that
established the reservation.
Long ID If the Long ID bit is set to 1, the Parameter List Length
is 8 and the eight bytes of the parameter list carry the
device ID of the third party device; the contents of the
Third Party Device ID in the CDB (byte 3) are
ignored.
Element The SuperLoader supports reservations only on
entire logical units. The value must be 0.
Reservation
Identification
Any value in this field is ignored by the SuperLoader.
Third Party
Device ID
If the Third Party Device ID value that is connected
with the reservation release is smaller than 255, the
LongID bit may be 0 and the ID value sent in the
CDB. If LongID bit = 0, the Parameter List Length
field also = 0. If the Third Party Device ID value is
greater than 255, LongID = 1.
Device servers that support device IDs greater than
255 will accept commands with LongID = 1; device
servers that do not support IDs greater than 255 may
reject commands with LongID set = 1. Device ID
formats are protocol-specific.