We're doing (trying to do) the final part of a dual swing migration from from 2003 to 2010 to 2013. The following is our current situation:
The 2010 box has been up and running for a couple/few weeks now, and works fine, without any issues.
The 2003 box has been completely decommissioned and removed from the domain/network.
The 2013 box has been set up and running for a week or so, but is not "in use/production"; just sitting there.
We do not care one bit for "co-existence", for any length of time, we just want to move the mailboxes from the 2010 box, to the 2013 box and then remove the 2010 box from the network, altogether, leaving us on Exchange 2013, period. We only have 23 mailboxes, with at total dB size of about 15-20GB, so this is a pretty small scale project, compared to a lot of stuff I've read on here.
We don't really care about setting up Outlook Anywhere, for external use, even though I've set it up on the 2010 box, thinking we had to do so, to move to 2013 (still not sure about that!). Everyone accesses their email via OWA, when not in the office.
The more I've read up on the subject, the more confused I've become on what else I need to do. I tried to do a "test" move of one mailbox today, and it failed, so I've decided to call it quits for the day (possibly the weekend).
Can anyone help guide me with what I need to do next, to migrate from the 2010 box to the 2013 box, and get rid of the 2010 box? It would be greatly appreciated, as I'm just frustrated with it at this point, as I can't find any articles on what we want to do: they all seem to lean toward co-existence... Thanks.