Dell AX4-5 User Manual

Page 53

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Understanding Your Failover Cluster

53

Failback

Failback returns the resources back to their original node. When the system
administrator repairs and restarts the failed node, WSFC takes the running
application and its resources offline, moves them from the Failover Cluster
node to the original node, and then restarts the application.

You can configure failback to occur immediately, at any given time, or not at
all. To minimize the delay until the resources come back online, configure the
failback time during off-peak hours.

Modifying Your Failover Policy

Use the following guidelines when you modify your failover policy:

Define how Failover Clustering detects and responds to group resource
failures.

Establish dependency relationships between the resources to control the
order in which the resources are taken offline.

Specify time-out, failover threshold, and failover period for your cluster
resources.

See "Resource Failure" on page 44 for more information.

Specify a Possible Owner List in Failover Clustering MMC for cluster
resources. The Possible Owner List for a resource controls which nodes are
allowed to host the resource.

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