Before You Modify a Replica Set
Before you modify a directory's replica set, you need to know how many replicas exist, their replica types, and the name of the clearinghouse where each of the replicas is stored. The command that you use to modify a directory's replica set does not allow you to accidentally leave a replica out of the new set. You must explicitly list all existing replicas that are in the set. You can include or exclude any replica from the new set, but you must account for all replicas. Only one of the replicas that you include in the new set can be designated as the master replica.
To display the names of all of a directory's replicas, use the dcecp directory show command. This command queries the directory's CDS_Replicas attribute to gather this information. (See Managing the DCE Directory Service for information on how to use the dcecp directory show command.)