Dell PowerVault 775N (Rackmount NAS Appliance) - Manual (Page 78)

Enabling Cluster NFS File Share Capabilities
After you add a node to the cluster, enable the NFS file sharing capabilities by performing the following steps.
NOTE: Perform this procedure on one cluster node after you configure the cluster.
1. Open a command prompt.
2. At the prompt, type:
c:\dell\util\cluster
3. In the cluster directory, run the NFSShareEnable.bat file.
Failover and Failback
This section provides information about the failover and failback capabilities of MSCS.
Failover
When an individual NAS cluster resource fails on a cluster node, MSCS detects the resource failure and tries to restart the
resource on the cluster node. If the restart attempt reaches a preset threshold, MSCS brings the running resource offline,
moves the dependent resources to another cluster node, and restarts all resources and related dependencies on the other
cluster node(s). This process of automatically moving resources from a failed cluster node to other healthy cluster node(s) is
called failover.
To fail over and fail back running NAS cluster resources, the resources are placed together in a group so that MSCS can move
the cluster resources as a combined unit. This process ensures that the failover and/or failback procedures transfers all of the
user resources as transparently as possible.
After failover, the Cluster Administrator can reset the following recovery policies:
NAS cluster resource dependencies
NAS cluster resource(s) restart on the same cluster node
Workload rebalancing (or failback) when a failed cluster node is repaired and brought back online
Failover Process
MSCS attempts to fail over a group when any of the following conditions occur:
The node currently hosting the group becomes inactive for any reason.
One of the resources within the group fails, and it is configured to affect the group.
Failover is forced by the System Administrator.
When a failover occurs, MSCS attempts to perform the following procedures: