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