Rya,
To answer your question directly, no. COBRAS does not back up any location information, however, it does get subscriber object ID's. In a nutshell, what is going to happen when you install LOC-2 into the environment, it's automatically going to sync in all of the subscribers into its GlobalSubscriber table from AD, as belonging to LOC-1 as long as its still the "owner" of these subscribers. If you try and run COBRAS import on that new server, it's going to recognize the subscriber object ID's in your backup that you're trying to import, already exist in the GlobalSubscriber table and it'll not allow you to proceed.
The link I sent you explains your two options. You either:
1. use GSM tool to move the users from old server to new (this takes care of remapping the subscriber properties including locationobjectID to the new server), or
2. bulk delete every one of the users from the old server. This deletes all subscribers locally on LOC-1 and proceeds to delete all Unity properties from the user objects in AD, which then replicates between other DC's in your environment and eventually LOC-2 will see those deletions and purge all of these users from its GlobalSubscriber table thus allowing them to be imported on a different Unity server.
Moral of the story, unless you move the users or delete them first, COBRAS will not allow you to run it since it can cause massive problems with users existing in two places.
Hope that helps,
Brad
