How to select a specific application server for process chain

Hi All,

We have 3 ECC servers , a database server and  two application servers. And we have one Bw system.

I knew that if we are running process chain automatically, it is choosing automatically random application server . Sometimes it is AP4 or PB4.

How to select a specific server for process chain on Bw side Or is this posibble on ECC side?

Now process chain runs and choosing automatically a server. But i have to select a specific server. I don't need the load balancing.

Regards,

Hasan.