Configure Policy Server failover in non-AIX operating systems

Policy Server failover is achieved using HACMP on AIX environment. How do you configure failover in operating systems other than AIX such as Windows.

One of the ways that I could see is:

1. Take nortan ghost of MPS machine and on a new machine with the same OS configuration, extract the ghost.

2. Keep the second machine disconnected from network. This machine will have same hostname as the primary MPS machine.

3. On a periodic basis, take MPS backup from primary using pdbackup command and restore the backup on second machine(call it backup machine).

4. In the event of primary MPS failure, disconnect primary from network and connect backup MPS machine to network.