Remove cluster aware updating
When I started evangelizing Windows Server 2012 for Microsoft, there was a long list of features that I was always happy to point to.There are a few of them that I have never really gone into detail on, that I am currently working with. Cluster Aware Updates (CAU) is a feature that does exactly what it says – it helps us to update the nodes in a Failover Cluster without having to manually take them down, put them into maintenance mode, or whatever else.
You would think that CAU would be a default behaviour. Nonetheless, you have to actually enable the role feature. By the way, in case you are curious the Firewall Rules that you need to enable is the ‘Remote Shutdown’ rule.This error can also happen if the target service account password is different than what is configured on the Kerberos Key Distribution Center for that target service.Ensure that the service on the server and the KDC are both configured to use the same password.You will need a location for your nodes from which to download the updates.Unfortunately System Center Configuration Manager does not support CAU yet.The Disable-Cau Cluster Role cmdlet suspends the self-updating functionality on the specified cluster.
The self-updating functionality of the cluster can be re-enabled with the Enable-Cau Cluster Role cmdlet.
The recommended managed solution will be to use WSUS.
If you are downloading updates through a proxy (such as directly from Microsoft) then you will need to configure Win HTTP proxy settings on each cluster node.
Take the time to create a prestaged computer account with a name that will mean something to you and your colleagues in a year’s time.
If all goes well the wizard will complete with a Success status.
Have you ever wanted to disable Cluster Aware Updating perhaps just for a while or even permanently?