I feel like I must have missed a step in my upgrade from exchange 2003 to 2010. I'm installing 2010 on a new server and will be running in a a mixed\coesxistance mode while I move mailboxes from my old box to the new one.
So everything looks all good, I've got the hub, client access and mailbox roles on my new box. If I open the EMC on the 2010 box, I can see the mailboxes on my older 2003 server. I can't move them, and If I attempt to double click on a mailbox under recipient configuration I get:
"Couldn't find database DOLPHIN\First Storage Group\Mailbox Store (DOLPHIN) Make sure you have typed it correctly. It was running the command get-Mailbox -identity 'foxshox.com/Users/Alexander' -ReadFromDomainController"
Any ideas of what I missed?