The highly available failover cluster described in this document provides a level of redundancy so that if the service fails on one node in the cluster, it will automatically failover and recover on another node in the cluster. When an event like this happens, it's important to bring the node that failed back into an operational state so that the redundancy in the system can be restored and protect in the case of another failure. This section talks about restoring the failed node under a variety of failure conditions.