Hi all, I got a question what is the correct procedure for applying an update on a CCR. 1. Stop the repilication between the passive(node b) and active node(node a), and apply the update (windows or dirver) on the passive node while all the resorses (CCR and the Windows Failovers Cluster name are on the acctive node) 2. After the update is applyed, resume the replication and wait for it to be healty. 3. Failover the cluster to the passive node (node b) 4. Stop the repilication, and apply the updates on the node a 5. Resume the replicaiton, wait for it to be healty and then failback to the node a. Is this the correct procedure? Tnx all!

Yes, Its a correct and i want to add one more point. I would suggest you to suspend replication instead of stop replication and resume after manitenance. Also beofre moving cluster to other node you have to run "get-storagegroupcopy" and see replay queu and copy queue length are "0". How to Install Update Rollups in a CCR Environment:: http://technet.microsoft.com/en-us/library/bb885047(EXCHG.80).aspx Anil

Tnx Anil

I got one more question, What is the best practise for the Windows Cluster in a CCR enviroment, should i manualy move the windows cluster to the active node also prior to the update of the pasive node? Tnx All!