HP 3000 Enterprise Virtual Array - Manual (Page 34)

Table 4 Failback preference settings
Setting Point in time Behavior
At initial presentation The units are alternately brought online
to Controller A or 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 alternately brought online to
Controller A or to Controller B.
On controller failover All LUNs are brought online to the
surviving controller.
No preference
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
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.
34 Enterprise Virtual Array operation