Cluster aware updating

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This can cause a transient service interruption for connected clients.

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 topic describes scenarios and applications for using CAU, and provides links to content that describes how to integrate CAU into other IT automation and management processes.

In today’s data center, and for the foreseeable future, the biggest word is “automation”.

It doesn’t matter how big your datacenter is, either.

However, in the case of continuously available workloads such as Hyper-V with live migration or file server with SMB Transparent Failover, CAU can coordinate cluster updates with no impact to the service availability.

CAU can be used on all editions of Windows Server 2012 R2 and Windows Server 2012, including Server Core installations.

The exact installation requirements for the Failover Clustering Tools depend on whether CAU coordinates updates as a clustered role on the failover cluster (by using self-updating mode) or from a remote computer running Windows Server 2012 R2, Windows Server 2012, Windows 8.1 or Windows 8 (by using remote-updating mode).

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