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Third-Party Device ID
This is required and used only when the 3rd Pty bit is set, in which case this field
specifies the SCSI ID of the initiator to be granted the reservation of the logical unit.
The drive preserves the reservation until one of the following occurs:
It is superseded by another valid
It is released by the same initiator with a third-party
the same value in the Third-Party Device ID field.
It is released by a hard reset or a power-cycle.
The drive ignores any attempt to release the reservation made by any other initiator,
including the initiator for which the reservation was made.
It is valid for an initiator to reserve the drive using a third-party reservation over itself.
In this case, a non-third-party
reservation.
command from the same initiator.
RESERVE UNIT
RELEASE UNIT
command could also release the
RELEASE UNIT
command with
Commands 143
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