I have an Exchange 2010 SP3 (220.127.116.11) with one datastore. This server is a SBS 2011 machine with about 60 users. The datastore contained a huge amount of whitespace that I needed to free up. I have a total of 83 mailboxes. I created the new datastore and started moving the mailboxes. 82 mailboxes moved to the new datastore with no problems and completed rather quickly.
I have one mailbox that is taking forever to transfer over. It seems to be stuck at 27%. The move has been running for about 8.5 hours now. The mailbox in questions is about 2.5GB in size. This is about average for our users. I have successfully moved much larger mailboxes last night, (11GB and 15GB)
Ther server is virtualized, (vmware 5.5) and both datastores, (original datastore and new datastore) are on the same EqualLogic 6100SX NAS, (SSD drives with 15K SAS).
I don't see the network or the storage being the issue here since the other 82 mailboxes transferred so quickly and without issue.
Is there something I can do to test, or fix this mailbox? Any article I found on slow move transfers all talk about Exchange 2010 SP1. But I have SP3 installed.
It seems the mailbox which is taking huge hours is corrupted or containing some bad items. You can try repairing the mailbox by running the following command. However you need to cancel the move request for this user first and then try to run a repair
New-MailboxRepairRequest -Mailbox email@example.com -CorruptionType FolderView
Refer the below link for the same.