sorry for confusion but each QVS will be located on its own physical server in order to create 2 nodes cluster environment.
QVS 1 -- machine A
QVS 2 -- machine B
However, they need to access the same shared area for all qvw, pgo and shared objects for failover. The shared area will be located on a 3rd server which will be connected to SAN.
My issue is sizing the configuration of this 3rd server ( cpu, ram, ....) ?