I'm using EMS to migrate 300 mailboxes from our Exchange 2010 server to Exchange 2013 (CU3). All but 9 of the mailboxes show "completed." The others show either "stalledduetowritecpu" or "stalledduetowritethrottle" If I look at the mailboxes in the console, it shows that they're on the correct database.
How do I verify whether the move request has completed or not? I don't want to suspend or cancel it and risk corrupting anything.