HP SureStore E SAN Manager LUN Management Administrator's Guide

162 Using CLARiiON’s Application Transparent Failover (ATF)
Tip To keep your devices organized in the main window, HP
recommends creating a separate device group for all of the devices
attached to each SP.
9. If desired, use Navisphere to redistribute the LUNs between the two SPs for normal
operation.
Assign Failover Pairs
A failover pair consists of a LUN and its missing peer.
1. Assign a LUN and its missing peer to a host that will be running ATF. Make sure that the
LUN and its missing peer are correctly assigned. If you assign the wrong missing peer
LUN, ATF will not function correctly under SAN Manager LM.
Device group
for SP A
Device group
for SP B