Is it possible to migrate a single project area in RTC from 2.x to 3.x? If yes, then how it can be done? If not, y is it not possible?
One answer
In RTC, the operations to backup, restore, move, and upgrade/migrate all happen for an entire server. It is not possible to do any of those on a single project area within a server.
This feature has been a high priority for some customers for several years. You are far from the first to ask for it. I can't give an authoritative answer about why it is so hard to implement. But I believe it has to do with the number of links/references between project areas (or between the project area and server-level data such as users) and the fact that RTC doesn't deal well when those links break or one end of the link moves to a different server.