About high availability in pool management
When you use pool management in conjunction with an HA environment, configure both peers as members of the same pool. If you choose one of the peers to be a pool manager, its failover peer should join the pool as a member.
Pools are dissolved when the manager is no longer available, unless the manager has an HA peer.
Without pool management, Core cannot manage its failover peer storage configuration unless failover is active (the failover peer is down). With pool management, the manager can manage the failover peer storage configuration even while the failover peer is up. The manager failover peer can manage the manager storage configuration only when the manager is down. The following scenarios show how you can use HA in pool management:
• The manager is down and its failover peer is active. In this scenario, when the manager is down the failover peer can take over the management of a pool. The manager failover peer can manage storage configuration for the members of the pool using the same configuration as the manager.
• The member is down and its failover peer is active. When a member of a pool is down and it has a failover peer configured (and the peer is not the manager of the member), the failover peer takes over servicing the LUNs of the member. The failover peer can access the storage configuration of the member when it is down. However, the pool manager cannot access the storage configuration of the failed member. To manage storage configuration of the down member, you need to log in to the Management Console of its failover peer directly.