Here is the third and final part of the migration from Exchange 2010 to Exchange 2016. Part 1 and Part 2 can be found here:
- Migration from Exchange 2010 to Exchange 2016 Part 1
- Migration from Exchange 2010 to Exchange 2016 Part 2
In this part we clean up and uninstall Exchange 2010.
Removing the Exchange 2010 databases
To ensure that Exchange 2010 can be uninstalled cleanly later, the databases must first be deleted.
First, the public folder proxy mailbox is switched off using the following command on the Exchange 2016 server:
Set-OrganizationConfig -RemotePublicFolderMailboxes:$NULL
Now the public folder database on the Exchange 2010 server can be deleted, the fastest way to do this is probably via the console:
The database files have to be deleted manually, but as I simply delete the entire VM later, I don't need to do this:
In the same way, the PFProxyDatabase containing the proxy mailbox can also be deleted:
And also the old mailbox database:
After all Exchange 2010 databases have been deleted, it will look like this:
While we're on the subject of deleting, you can also delete the old offline address book, but don't get the wrong one:
Das Offlineadressbuch bei dem Exchange 2010 der „Server für die Generierung“ ist, kann gelöscht werden.
The Exchange 2016 OAB (displayed with note Ex2013) remains in place:
Customize send connector
The Exchange 2010 server is still the source server of the Send Connector, here too the old server can be easily removed from the configuration via the console:
Only the Exchange 2016 server is still the source server of the send connector
Clean up DNS
The DNS entry for the CAS array can now also be removed
Just like the CAS array itself:
Uninstall Exchange 2010
Exchange 2010 can now be uninstalled:
Deselect all roles and also the administration tools:
Exchange 2010 can be uninstalled just as neatly as it was installed:
Exactly 4 minutes later Exchange 2010 is history :-)
Last but not least, remove the server from AD and restart it
Delete computer account from AD
Confirm the warning:
Done. Yes, really, everything is ready.
Should I write another obituary?
I really liked Exchange 2010, I'm almost a bit sad to see everyone migrating to Exchange 2016 now. I would estimate the percentage of Exchange 2010 installations to be higher than Exchange 2013 installations. Let's leave out Exchange 2013 and the bumpy start for now, I hope that Exchange 2016 will be a worthy successor. In any case, things are looking pretty good so far.
Rest in Peace Exchange 2010!