Has anyone been involved in Migrating from Domino/BES to Exchange/BES? How diffiicult was it? What kind of issues dd you face? My company is moving from Notes/Domino R5.0.13 to Exchange 2003 SP2 over the next couple of months, and I am responsile for the BlackBerry users among other things. Any tips would be appreciated.
Both platforms use a different architecture for their configuration database.
There's no simple migration path from Domino/BES to Exchange/BES.
Depending on the version of Domino you're currently running....it's either all *.nsf databases (if using 2.x-->2.2.x) or a mixture of *.nsf databases and MSDE/SQL (if using 4.0.x). Also there's no downgrade path for Domino if your your upgrade or migration runs into problems. You'll have to take the necessary precautions and make some replicas of the files in the /BES and /BES/State directories before proceeding. Or use the files from a brick-level backup.
My suggestion would be to simply remove the users from the Domino/BES (provided their mail accounts been migrated over to Exchange mail server) and add them to the Exchange/BES. You'll still end up doing that anyway, since both BES servers are not on the same configuration database, because they are architecturally different.
The Domino users will have no other choice but to endure some inconvenience recradling to regenerate a new encryption key and the orphaning of the Domino mail on devices. It'll also be necessary to do a security wipe of those devices before activation on the Exchange/BES. I think a good Project Plan is in order.
Do you have a disaster recovery site? You could get a new BES 4.1 licence for Exchange, migrate users to it and then kill and rebuild the old server as 4.1/Exch and relocate it to the DR site with ~50% of users on it.
If you're an AD shop that doesn't leverage Domino databases, apps etc. moving to Exchange might be helpful. We are going the other path, using Domino for document management, blogs and whatever else we can think of. You can do that with Microsoft, as long as you want to install a whole bunch of stuff along with Exchange.