Hi all,

Currently i am trying to setup exchange 2013 into coexist exchange server 2007. The setup has completed successfully, so does mailbox migration test from 2007 database to 2013 database.

My questions is, when i accessing 2013 ECP, select Server Menu, i can see the coexist 2007 server along with 2013 server, but on database tab, there are only databases belong to 2013. The user from 2007 database cannot access his mailbox from 2013 OWA.

My questions are:

1. Is it normal, that 2013 ECP will not listed the 2007 database? If not, what are the configurations i have missed?

2. If it is normal, then let say that i would like to do mailbox migration gradually (because it will take very long downtime to migrate a bunch of mailbox), how user can still access mail.domain.com from outside organization and the 2013 CAS will understand whether this user's belong to 2013 mailbox (user has been migrated) or 2007 mailbox (user that has not been migrated)?

Thanks.

1. No, it is not normal. You should be able to see 2007 but you can't create a mailbox in this database

2. 2013 CAS understand 2010/2007 mailbox and redirects.

Check my blog if this helps: http://msexchangeguru.com/2013/05/10/exchange2013-migration/

Hi,

I did update the exc 2007 servers. It is SP3 rollup update 10. But the dbase is not there, from 2007 exchange management console i can see 2013 mailbox databases, bot not vice versa....

I don't think this is a show stopper so I would recommend to continue with migration than spending extra time on this which is not causing any problem.