SEPM 11.6 and SEPM 12.1 failover/load balancing in the same site
I have just received 2 new 2008 servers and I would like to deploy and test SEPM 12.1 on one of them and add that SEPM 12.1 server to my current SEP environment currently managed by 1 SEPM 11.6.(11.0.6005.562) as additional SEPM for failover or load balancing.
SEP database is sitting on separate SQL server.
70% my current SEP clients running SEP 11.6 will get upgraded to 12.1 in the future but 30% will need to stay on 11.6 as we are still running a lot of servers/desktop on Win 2000 and as far as I know 12.1 is not supporting Win 2000.
What will be the best and easiest way to achieve this task without affecting any currently installed SEP 11.6 clients?
Can I just install and add additional 12.1 SEPM, connect it to current SQL database and setup server priorities?
Or I will need to install another SEPM 11.6, add it to my current environment and then upgrade it to SEPM 12.1?