For a client we are moving all of their servers offsite. For their 700 user HQ we'll leave just print servers and DCs. The client is asking if we could just use Read-only DCs in HQ. While technically that should work (no Exchange servers will be in that site), I'm not sure how comfortable I am with that. Maybe it's just fine and I'm being too conservative.
I know that certain functions, such as changing passwords and adding machines to the domain, would be unavailable if the HQ is isolated from the COLO. I don't see this as much of a problem. If both of their redundant 1GB fiber links are down and ALL production servers are unreachable, then they have bigger problems than trying to add a workstation to the domain in HQ!
Anybody have any thoughts or experience?