HP 4000.6000.8000 Enterprise Virtual Arrays - Manual (Page 34)

Setting Point in time Behavior
At initial presentation The units are brought online to Controller
A.
On dual boot or controller resynch If cache data for a LUN exists on a
particular controller, the unit will be
brought online there. Otherwise, the
units are brought online to Controller A.
On controller failover All LUNs are brought online to the
surviving controller.
Path A - Failover
Only
On controller failback All LUNs remain on the surviving
controller. There is no failback except
if a host moves the LUN using SCSI
commands.
At initial presentation The units are brought online to Controller
B.
On dual boot or controller resynch If cache data for a LUN exists on a
particular controller, the unit will be
brought online there. Otherwise, the
units are brought online to Controller B.
On controller failover All LUNs are brought online to the
surviving controller.
Path B - Failover Only
On controller failback All LUNs remain on the surviving
controller. There is no failback except
if a host moves the LUN using SCSI
commands.
At initial presentation The units are brought online to Controller
A.
On dual boot or controller resynch If cache data for a LUN exists on a
particular controller, the unit will be
brought online there. Otherwise, the
units are brought online to Controller A.
On controller failover All LUNs are brought online to the
surviving controller.
Path A - Failover/
Failback
On controller failback All LUNs remain on the surviving
controller. After controller restoration,
the units that are online to Controller B
and set to Path A are brought online
to Controller A. This is a one time
occurrence. If the host then moves the
LUN using SCSI commands, the LUN will
remain where moved.
34 Enterprise Virtual Array operation