LifeKeeper performs live monitoring of the nodes by checking the heartbeat response through all the configured communication paths. If the heartbeat communication does not receive a predetermined number of responses, it is determined that the communication path is disconnected, and the status is set to DEAD. If the status of all communication paths is DEAD, LifeKeeper determines it as a node failure and initiates a failover.
Since two or more communication paths between servers are recommended with LifeKeeper, configure them as follows.
Refer to Creating a Communication Path for details.