At the moment we have three servers running Exchange 2010;
We want to install SP1 on the mailbox server with the /hosting switch. I've searched the internet, and couldn't find any information about this. Can someone tell me what will happen with the current mailboxes? Are they left alone or should we restore them afterwards? Or should we remove all of the servers and start all over again?
Should sp1 be installed with the hosting switch on every server or just on the mailbox server?
I'm going to test this in a lab environment, but before I begin I want to gather some information.