I haven't thought this through, but an incident at one of our sites over the weekend brought this up.
Basically we had a power outage of several hours that also brought down one of our three pollers and the hot-standby server.
I would have loved to just move the hot-standby licence to another data center for a couple of hours while the issue was resolved...
It occurred to me that it would have been great if the licence was held on the database server rather than each poller/module. From my 'user' view, I have paid for x number of licences, and in today's virtual server farms we have the ability to move applications/services very quickly between physical servers.
The limitation I had was how fast I could contact support and have the license moved - rather than a technical limitation.
Would it be practical to have an app on the database server to control the licensing, so that we were free to move pollers around?
Dave.