Has anybody some experiences with VIPA (Virtual IP Address )

Our situation:
We have some ADABAS DBs in Cluster Mode.
During the normal time, the EntireX Services access to the DBs from the partition A.
When we make an IPL, the EntireX Services are down during this time.

The Idee:
Same Broker und same Services are up on both partition A and B.
Before start IPL partition A, the EntireX Services go dynamically make access to the partition B with help from VIPA.

Our z/OS specialist has no experience with VIPA and it will be helpful if anybody can help us.

Question:
As anybody some experiences with VIPA on z/OS?

Or

As anybody an other solution to make our services always up during a IPL?

Bests regards, Benard Grandjean.