Is there anyway to setup our Production watch server so that we could have it installed on two machines, one in Seattle and one in Sacramento, but using only a single license?

Seattle is our primary location. This is where it's running now.

Sacramento would be a backup (disaster in Seattle) site should Seattle be unavailable.

We can't afford two licenses given the unlikely need for the backup site.

Should the unthinkable happen, we could "flip a switch" or change a "magic number" in a file and like "magic" the Sacramento server would process jobs and the Seattle server would be non-functional?

Any ideas?