Active-Active cluster on shared nfs storage

 Hi,

We have a FMW installation of Oracle BI discoverer version 11.1.1.4.0.

For HA and Load balancing, we want to create a cluster with services running on machine2.

The question here is can we use the installation of weblogici and FMW on node 1 which is on a shared file system and which is mounted on machine2 as well, 

 for creating cluster on machine2?

If yes, what would be the high level steps?

Or we do we need to do to separate installations for each node for creating the required cluster?

Thanks

San