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(1)
Release Function
This command releases a reserve state if a reserve state exists, and if the INIT which issued
this command has a reserve right for the entire IDD (logical unit). See Reserve Right and
Third Party Reserve Function in "RESERVE Command" (item 3.1.11) concerning the
definition of "Reserve Right."
(2)
Release Object and Third Party Release Function
When the "3rd Pty" bit in CDB byte 1 is "0," this command cancels a reserve state if it exists
in the IDD that has been reserved by a RESERVE command without the INIT that issued this
command specifying the third party reserve function.
When the "3rd Pty" bit is "1," the third party release function is specified and this command
can release a reserve state established in the past by the third party reserve function. When the
third party release function is specified, this command releases the reserve state only when the
INIT that issued this command is the same as the INIT that used the RESERVE command in
the past to specify the third party reserve function which caused the IDD to be reserved for the
SCSI device (third party device) specified in the "3rd Pty Dev ID" field in CDB byte 1 of this
command.
Since only 3 bits are defined in the "3rd Pty Dev ID" in this command, the third party release
function is valid only for SCSI devices with SCSI IDs 7 to 0.
3 - 76
C141-E039-01EN
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