I have two exchange servers a physical 2010 (Version 14.3 build 123.4) server and VMware esx 6.0 virtual 2013 (Version 15.0 Build 1130.7) server.
I am in the process of migrating users; however, I keep running into issues.
When I bulk move users it looks like things are going fine ( in run Get-moverequest|get-moverequeststatistics and keep a close eye on it) then the database the users are being moved to dismounts, the job stalls and if your current mailbox happens to be on that you are disconnected from exchange.
I get this warning
The Microsoft Exchange Mailbox Replication service was unable to save changes to request.
Request: 'fd323d37-9466-438e-819e-588c1a44aa8e' (367bcc14-b4c1-49e2-97a1-2a4ef3ac4a1f)
Database: IT_MS
Error: MapiExceptionMdbOffline: Unable to make connection to the server. (hr=0x80004005, ec=1142)
Diagnostic context:
Lid: 41192 dwParam: 0x1
Lid: 49384
Lid: 51176 StoreEc: 0x476
Lid: 48104
Lid: 39912 StoreEc: 0x476
Lid: 41192 dwParam: 0x2
Lid: 49384
Lid: 51176 StoreEc: 0x476
Lid: 48104
Lid: 39912 StoreEc: 0x476
Lid: 41192 dwParam: 0x0
Lid: 49064 dwParam: 0x1
Lid: 38439 EMSMDBPOOL.EcPoolConnect called [length=48]
Lid: 54823 EMSMDBPOOL.EcPoolConnect returned [ec=0x476][length=20][latency=0]
Lid: 53361 StoreEc: 0x476
Lid: 51859
Lid: 33649 StoreEc: 0x476
Lid: 43315
Lid: 58225 StoreEc: 0x476
Lid: 39912 StoreEc: 0x476
Lid: 54129 StoreEc: 0x476
Lid: 50519
Lid: 59735 StoreEc: 0x476
Lid: 59199
Lid: 27356 StoreEc: 0x476
Lid: 65279
Lid: 52465 StoreEc: 0x476
Lid: 60065
Lid: 33777 StoreEc: 0x476
Lid: 59805
Lid: 52487 StoreEc: 0x476
Lid: 19778
Lid: 27970 StoreEc: 0x476
Lid: 17730
Lid: 25922 StoreEc: 0x476
Then I get this error
At '12/13/2015 11:22:29 AM' the copy of database 'IT_MS' on this server was unexpectedly dismounted. The error returned by failover was "There is only one copy of this mailbox database (IT_MS). Automatic recovery is not available.". For more specific information about the failures, consult the event log on the server for other "ExchangeStoreDb" events.
If I just migrate one mailbox, often the mailbox goes into quarantine.
Mail on both servers seems to work just fine. Not sure what the issue is between them.
Any ideas?