Configuring Cluster-Aware Updating for cluster nodes

One of the most complicated tasks in previous Windows versions, regarding Windows Updates, is the process of updating a cluster. The whole procedure is manual and requires a lot of effort to guarantee that all nodes within the clusters are up-to-date.

Windows Server 2012 introduces Cluster-Aware Updating (CAU), which automatically installs updates for all node members of a cluster in a synchronized and orchestrated way. Once CAU is able to do all the jobs with no user interaction, it allows enterprises to update their clusters in a dynamic and automated process, saving costs, time, and resources otherwise spent on running updates on clusters. As a result, it will reduce outages in clusters when running updates and reduces your tasks for manual updates.

CAU will be responsible for checking, downloading, and installing all available Windows updates packages and installing with minimum or no downtime for the services running in the cluster...