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Posted by / 26-Dec-2019 21:44

Wsus cluster aware updating

Maybe you are familiar with the Remediation process in System Center Virtual Machine which allows you to automatically set a Hyper-V node in maintenance mode, move Virtual Machines to another node, install patches on your Hyper-V Cluster node and bring the node back online. Cluster-Aware Updating (CAU) is an automated feature that allows you to update clustered servers with little or no loss in availability during the update process.During an Updating Run, CAU transparently performs the following tasks: Microsoft Tech Net: Cluster-Aware Updating overview CAU does not only move Virtual Machines, like SCVMM, it does also know about other Cluster Roles like Hyper-V Replica Broker or File shares.You can change this default behaviour so that low priority VMs are moved using live migration, just like medium- and high-priority VMs.WS2012 R2 Hyper-V uses live migration by default for VMs of all priorities.Windows Server 2012 (WS2012) introduced Cluster-Aware Updating (CAU) to allow each member of a cluster be paused, drained of highly available (HA) roles, patched, and rebooted in an orchestrated manner.Without CAU, you will probably be patching your clusters manually (which rarely happens), and in the case of Hyper-V clusters, CAU will leverage Live Migration to ensure that services have zero downtime.

If you run some Clusters with 16 nodes you know how much time was needed for manually updating the cluster nodes.

Check the prerequisites, the name of the prestaged computer account, and the permissions on the cluster’s OU.

With CAU configured, your cluster will automatically: You can initiate a patch run manually from FCM on a cluster node once you have completed the above configuration.

You will need a location for your nodes from which to download the updates.

Unfortunately System Center Configuration Manager does not support CAU yet.

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In Windows Server 2012 Microsoft introduced Cluster-Aware Updating or short CAU.