When the CAU feature is used in conjunction with continuously available cluster workloads, such as continuously available file servers (file server workload with SMB Transparent Failover) or Hyper-V, the cluster updates can be performed with zero impact to service availability for clients.ĬAU facilitates the adoption of consistent IT processes across the enterprise. Practical applicationsĬAU reduces service outages in clustered services, reduces the need for manual updating workarounds, and makes the end-to-end cluster updating process more reliable for the administrator. However, in the case of continuously available workloads, such as Hyper-V with live migration or file server with SMB Transparent Failover, Cluster-Aware Updating can coordinate cluster updates with no impact to the service availability. This can cause a transient service interruption for connected clients. Restores the clustered roles on the node.įor many clustered roles in the cluster, the automatic update process triggers a planned failover.Brings the node out of maintenance mode.Installs the updates and any dependent updates. Moves the clustered roles off the node.Puts each node of the cluster into node maintenance mode.During an Updating Run, Cluster-Aware Updating transparently performs the following tasks: Feature descriptionĬluster-Aware Updating is an automated feature that enables you to update servers in a failover cluster with little or no loss in availability during the update process. When updating Storage Spaces Direct clusters, we recommend using Cluster-Aware Updating.
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