Hello,   What version of EQL firmware are you using?   Since the units are in the same group and in different pools, with proper firmware you can mirror volumes. It's known as synchronous replication.  You can not mirror them all, and there is no auto-failover to the alternate pool.   But your data is safe and at worst a rescan or restart of the host is needed to restore access to the data.    If you do configure volumes for sync rep, they cannot also do remote group replication.  They also can't be a target of replication from another group.    Regards, Don  
We have a M1000e Chassis with 2 Equallogic PS-M4110X, but we had a failure with one of this units, and the availability of the volumes was compromised. It was configured with 2 pool members with RAID6 Policy, but after changing the operation to the DR Site, we are considering the reconfiguration of this layout.In the new layout we are interested in something like mirroring the volumes between both PS-M4110X units, and in the case that one unit get damaged, it could continue operating all volumes with the remaining unit. Does it is posible..? or the only HA options is for accessing the controllers. Regards, Dionisio
Equallogic PS-M4110X Options for HA / Mirroring of volumes.