My client has an existing Domino setup, started at version 2.0 upgraded over the years to 6.5.4. We are about to install a new Domino 9 server. Customisations have be applied to; mailboxes(custom template mailtmp5.ntf), Names.nsf, catalog.nsf, mail.box.
As a precaution we have already taken separate backups of all of the above. This is part of a planned migration for all servers to version 9, but we will be running a mixed setup for a few weeks.
If we install the new Domino 9 server as an 'additional' server within the directory will it overwrite the existing templates and Names.nsf?
Would it be best to extract all the customised docs/views/code into a separate template and add the functionality back into the Domino 9 template versions?
IBM recommend that an upgrade to 9 should start with a minimum 8.5, any issues to look out for going from 6.5.4 to 9?
If this all looks like a bad idea we can virtualise an existing 6.5.4 and upgrade to 8.5 then 9 on a test server and see what transpires!