16. Disaster Recovery : Master Node Recovery : Requirements for Failover of Master Node
 
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Requirements for Failover of Master Node
The following are required to use the master node failover feature:
Red Hat Enterprise Linux Cluster Suite
II_SYSTEM and all data locations and log locations (II_DATABASE, II_LOG, and so on) must be located on a device that is physically mounted on both the Master Node and Secondary Master Node under the same path. Use of NFS is not supported.