Cluster-Aware Updating

Hi,

    I am trying to use Cluster-Aware Updating ( CAU ) for updating all the nodes in the cluster environment.

I have installed the CAU features in the windows server 2012 and also scheduled the Update.

I have applied the update to the cluster node. Everything is working fine but after all the downloads completed it started to install the update & the system reboots .

In the log it says that "The cluster node failed to restart".

I am a little bit new to cluster & CAU.

So, Please guide me and share the right link that I can use that link.

Thanks,