The mailbox move process has been fine tuned in Exchange 2013 with the concept of “Batch Move”.
Similar to Exchange 2010, a single or multiple mailboxes can be moved using EAC. Mailbox move can be initiated from the move mailbox option next to a mailbox or by using the “Migration” tab in the “Recipients” node.
A new option exposed in the EAC is the option to use a CSV file as an input to move the mailboxes.
In 2013, every mailbox move needs a batch name, even if it is to move a single mailbox. There is a new option to specify a “large item limit”.
There is an option to send an email report to an admin account, once the move is completed. This is a nice to have feature. So is the option to prepare the mailbox move and start it later.
In 2013, you can move the primary and target mailbox to different database at the same time.
Do check out the 2013 way of moving mailboxes 
Percy J September 6, 2012 at 5:21 pm
The GUI for batch moves is great. I’m partial to the GUI interface because I use the mouse faster than I type
Rajith Enchiparambil September 17, 2012 at 10:32 am
Very true Percy.
Turbomcp September 8, 2012 at 5:38 pm
Hi
Thanks for sharing
you can also do a delta sync move which you couldn’t in 2010.
for example you move 50 users and suspend
then a week passes but you don’t want to resume and move the delta of that one week.
you can re-sync the differences again so the delta is smaller(without actually moving anything yet)
then resume the suspended should take a few seconds/minutes only.
Rajith Enchiparambil September 17, 2012 at 10:34 am
Very true Turbomcp. You could suspend in 2010, but the delta sync is new.
Raheem Shapi September 14, 2012 at 12:10 am
You are slacking Raj, you need to post more often
! Hope you have a good vacation!
Rajith Enchiparambil September 17, 2012 at 10:35 am
Hi Raheem,
I will try to post more often
homepage September 18, 2012 at 12:57 pm
Thanks a lot for the article post.Really looking forward to read more. Cool.
Rajith Enchiparambil October 3, 2012 at 10:44 pm
Thanks Homepage.