I believe you do it in the order I have below. That keeps the mailbox servers last.
In this order: 2 CAS/HUB servers 1 CAS/HUB/Mailbox server 2 Mailbox servers -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Maglinger, Paul Sent: Friday, February 12, 2016 3:34 PM To: New Exchange List ([email protected]) Subject: [Exchange] Installing Exchagne 2010 SP3 on servers with different roles. I'm getting ready to install Exchange 2010 SP3 and UR11. In this environment we have: 2 CAS/HUB servers 2 Mailbox servers 1 CAS/HUB/Mailbox server The DAG consists of information stores on the 2 mailbox servers and the CAS/HUB/Mailbox server. I know I should begin updating the CAS/HUB servers first and then the Mailbox. But in the case of having a CAS/HUX/Mailbox in the mix, do I save it for last or do it first, or does it matter? -Paul
