Disadvantage:

•Must ensure that the failover cluster nodes have ample resources available to handle the additional workload.

Figure 1-3 shows an example of multiway failover configuration.

cluster

cluster

node 1

node 2

 

Application A

Application C

Application B

 

cluster node 3

cluster node 4

Figure 1-3. Example of a 4-Node Multiway Failover

Table 1-4 provides an example of a multiway failover configuration for the cluster shown in Figure 1-3. 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 will failover to cluster nodes 2, 4, and 3, respec- tively. The cluster resource groups on cluster nodes 2, 3, and 4 need to be configured similarly.

Table 1-4. Example of a 4-Node Multiway Failover Configuration

Cluster Resource Group

Failover Order in the

 

Preferred Owners List

 

 

A

1, 2, 3, 4

B

1, 4, 2, 3

C

1, 3, 4, 2

 

 

NOTE: When implementing this type of failover solution, failback should be config- ured to avoid performance degradation.

Cascading Failover

With Cascading failover, all running applications migrate from the failed node to the next preassigned cluster node. If you do not make a failover selection, cascading failover will be the default failover type. This type of failover provides the following features:

1-8 User’s Guide

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Dell FE100, FL100 manual Cascading Failover, Example of a 4-Node Multiway Failover Configuration, Disadvantage
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FL100, FE100 specifications

The Dell FE100, FL100, FL200, and FE200 are part of Dell's lineup of advanced networking switches designed to cater to the increasing demand for efficient data handling in enterprise environments. These switches combine powerful performance with a range of features that ensure scalability, reliability, and ease of management.

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