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You can then have CAU “connect” to any failover cluster using appropriate administration credentials, and update the cluster on demand For an overview of the scenario, check out the CAU Scenario Overview .
For this blog post, I will focus on the first mode above: Self-Updating .
The beauty of self-updating is that it lets you configure your failover cluster to be on “auto pilot” in terms of patching, and once set up, the cluster updates itself on the schedule you have defined in a way that it causes either no impact to service availability, or the least possible – depending on the types of workloads (e.g.
Hyper-V cluster updating experience would be truly continuously available with Live Migration, with zero down time to Hyper-V VM users).
If you had of course explicitly chosen not to install Failover Clustering Tools on the cluster nodes, you will need to install them now with this step.
If you plan to run CAU from a computer different from the cluster nodes, that is still easy!
Now, if you had self-updating already configured for your cluster, the wizard would give you three different options – to disable, re-enable and remove the self-updating functionality.
So in effect, this wizard is your “one-stop shop” for all things related to self-updating configuration.
Remote-Updating: CAU can run on a standalone Windows 8/Windows Server 2012 computer that is not a cluster node.
At a high level, there are three things you need to do to get the end-to-end scenario working and operating seamlessly with your existing patching infrastructure such as Windows Server Update Services (WSUS), on a Windows Server 2012 failover cluster: 1.
Install CAU tools on the Windows Server 2012 (or Windows 8 Client) computer that you want to run it from. Configure self-updating on the desired failover cluster 3. Install CAU tools Installation of CAU is very easy: CAU tools are a part of Failover Clustering Tools.
Confirm that the scenario works by previewing the updates and prompting a Self-Updating Run Then you simply sit back and enjoy watching cluster self-updating in action! As Failover Clustering Tools are by default auto-selected for installation when the Failover Clustering feature is installed on a cluster node, your cluster nodes most likely already have CAU tools pre-installed.
The net is that you can safely skip this step if you are running it from one of the cluster nodes.