I'm moving mailboxes from Exchange 2003 to Exchange 2010. It's taken 1.5 hours to move 50% of a 916MB mailbox. I've moved two similarly sized mailboxes before and it didn't take nearly this long. I've checked the performance counters on both the source and target servers and it doesn't appear to be a server hardware resource bottleneck.
The biggest change I've made to the 2010 environment is I've created a DAG and enabled replication to a 2nd offsite server connected via a WAN-accelerated T1. I suspected that the Mailbox Replication Service was throttling the move so I tried suspending the offsite mailbox database copy and that didn't seem to help. Do I need to remove the copy completely and then do a reseed after migrating my mailboxes to see any benefit?
Any ideas why my mailbox move is going so slowly or anyone know where I might look to shed further light on the problem?
The biggest change I've made to the 2010 environment is I've created a DAG and enabled replication to a 2nd offsite server connected via a WAN-accelerated T1. I suspected that the Mailbox Replication Service was throttling the move so I tried suspending the offsite mailbox database copy and that didn't seem to help. Do I need to remove the copy completely and then do a reseed after migrating my mailboxes to see any benefit?
Any ideas why my mailbox move is going so slowly or anyone know where I might look to shed further light on the problem?