5.6 HP StorageWorks X9320 Network Storage System Administrator Guide (AW542-96006, June 2011)

To ensure continuous data access, X9000 Software provides manual and automated failover
protection at various points:
• Server. A failed node is powered down and a designated standby server assumes all of its
segment management duties.
• Segment. Ownership of each segment on a failed node is transferred to a designated standby
server.
• Network interface. The IP address of a failed network interface is transferred to a standby
network interface until the original network interface is operational again.
• Storage connection. For servers with HBA-protected Fibre Channel access, failure of the HBA
triggers failover of the node to a designated standby server.
High availability and redundancy 11