User's Guide

Chapter 2 Media Changer Commands
Persistent Reserve In Command (5Eh)
Quantum SuperLoader 3 Software Interface Guide 77
5h WRITE
Exclusive,
Registrants
Only
READS: Shared; any application client on any initiator may execute
commands that perform transfers from the target to the initiator.
WRITES: Exclusive; any command from an initiator that has not
previously performed a
Register service action with the device
server that attempts a transfer to the target results in a reservation
conflict
ADDITIONAL RESERVATIONS: Allowed; any initiator may reserve
the logical unit, extents, or elements as long as the persistent
reservations to not conflict with any reservations already known to
the device server.
6h Exclusive
Access,
Registrants
Only
READS: Exclusive; any command from an initiator that has not
previously performed a Register service action with the device
server that attempts a transfer from the target results in a
reservation conflict.
WRITES: Exclusive; any command from an initiator that has not
previously performed a Register service action with the device
server that attempts a transfer to the target results in a reservation
conflict
ADDITIONAL RESERVATIONS: Allowed; any initiator may reserve
the logical unit, extents, or elements as long as the persistent
reservations to not conflict with any reservations already known to
the device server.
7h-Fh Reserved Not applicable
Code Name Description