Best way to put cluster resources into maintenance?

Got two servers (and a quorum) each running a number of ldoms. These ldoms are all set up as individual cluster resource groups.

We're planning to move all ldoms off onto the one server (using clrg switch).

So we can then perform maintenance on the original host. We plan to power this back up but do not want ldoms switched back to it - its being physically moved next week.

Do we need to do anything to unmonitor the resource groups etc to stop any ldoms inadvertently switching back to this original control domain/host?