How to change host name entry for java instance using config tool

Hi Gurus,

We are trying to invoke DR for dual stack SAP PI system.Strategy followed is BR Tool  backup and restore method.

We are able bring up ABAP stack and it is still pointing to production Java stack.

Could any one please guide us with step by step procedure to change entries and bringing up java stack for DR system.

While bringing up java instance we are facing below issues

From starting framework it goes back to collecting data stack.

Thanks,

Avadhesh Sharma    

+91-8095226536