Failover Cluster Maintenance
Roles are deployed on failover clusters based on the fact that they are critical to business operations. The reliability of each cluster node is very important, and making any changes to the software or hardware configuration of each node can compromise this reliability. Before any changes are implemented on a production failover cluster, a few pre-maintenance tasks should be performed. To prepare a cluster node for maintenance, do the following:
1. Whether you’re planning a software or hardware upgrade, research to see whether the changes will be supported on Windows Server 2012 failover clusters.
2. Log on to one of the Windows Server 2012 cluster nodes with an account with administrator privileges over all nodes ...
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