I assume that the Master Server and Child Servers are DM Repositories.
So the question turns to be: how to retire the original Master Repository Controller and make one of the Child Repository as Master.
Basically you have to:
- Stop the old master Server
- Install HPDM Master Repository Controller on one of your Child server
- Remove the certificate files hpdmskey.keystore in ..\Server\bin from DM Server side to unlock the binding between HPDM Server and origiinal Master Repository Controller
- Open the Repository Management dialog from DM Console. Remove the old Repository record and add the new one accordingly.
- Test the new repository to check the connection.
- Send payload related task for final check.