Updated: Installing Exchange 2010 rollups on DAG servers - now with a script!
Having had to install rollups on a bunch of Exchange 2010 servers recently, I took the info from the original post
Installing Exchange 2010 rollups on DAG servers and combined it all into a PowerShell script. I also updated the original article to include steps using Exchange Management Console (EMC). Take a look at the original post for the updated info and script.