Dell PowerVault 775N (Rackmount NAS Appliance) - Manual (Page 17)

Figure 1-4. Example of a Failover Pair Configuration
Table 1-8. Example of a Failover Pair Configuration for a
Four-Node Cluster
Cluster Resource Group Possible Owners List
App1 1,2
App2 3,4
Multiway Failover
Multiway failover is an active/active failover policy where running applications from a failed node migrate to multiple nodes in
the cluster. This type of failover solution provides automatic failover and load-balancing between cluster nodes. However, you
must ensure that the failover cluster nodes have ample resources available to handle the additional workload. Figure 1-5
shows an example of four-node multiway failover configuration.
Table 1-9 provides an example of a four-node multiway failover configuration for the cluster shown in Figure 1-5 . For each
cluster resource group, the failover order in the Preferred Owners list outlines the order that you want that resource group to
failover. In this example, node 1 owns cluster resource groups A, B, and C. If node 1 fails, the cluster resource groups A, B,
and C fail over to cluster nodes 2, 4, and 3, respectively. Configure the cluster resource groups similarly on cluster nodes 2, 3,
and 4.
When implementing this type of failover policy, configure failback to avoid performance degradation.
Figure 1-5. Example of a Four-Node Multiway Failover Configuration