User's Guide

Chapter 2 Emulated Medium Changer SCSI Commands
Release (17h)
Quantum DX-Series Software Interface Guide 71
Release (17h) 2
The Release command releases the DX-Series system or elements that
match the specified release parameters.
Table 48 Release
Command
Bit/Byte 7 6 5 4 3 2 1 0
0
1
2
3
4
5
• Logical Unit Number
The Logical Unit Number is 0. This field indicates the logical unit to
which the command is sent.
• 3rdPty and 3rd Party ID
The 3rd party release option allows an initiator to release a logical
unit or elements that were previously reserved using the 3rd party
reservation option.
• If the 3rdPty bit is 0, then the 3rd party release option is not
requested and the command only releases a unit or elements that
were reserved without 3rd party reservation
Note: It is not an error to attempt to release the DX-Series system if it
is not currently reserved by the requesting initiator. However,
if the DX-Series system is reserved by another initiator, the
DX-Series system is not released.
Operation Code (17h)
Logical Unit Number 3rdPty 3rd Party ID
Element
0
Reservation ID
Reserved (00h)
Reserved (00h)
Unused Reserved (00h)
Flag (0) Link (0)