You can specify a different Global Manager source for Business Impact Manager by performing the following two steps:
Remove the current Global Manager source by stopping the Business Impact Manager and then restarting it with a startup command line that contains the --norestore option.
Add a new Global Manager source by completing the procedure in “Adding the Global Manager as a topology source” on page 96.
Including the --norestore option in the startup command line will start Business Impact Manager without restoring any saved objects from its repository file. (Business Impact Manager repository files are located in the BASEDIR/smarts/local/repos/icf directory.) This mode of startup is necessary to delete from the repository the topology elements associated with the Global Manager source that is targeted for source removal.
Because the Business Impact Manager startup command created during the Service Assurance Manager installation does not contain the --norestore option, you will need to either temporarily modify the Business Impact Manager startup command (substitute --ignore-restore-errors with --norestore) or create a new service startup command or a new native startup command that contains the --norestore option.