eDirectory offers the Novell robust directory service and the fault tolerance inherent in replication. Replication allows you to keep copies of the eDirectory database, or portions of it, on multiple servers at once.
You should always keep multiple replicas of eDirectory partitions. If you do so and one replica becomes corrupted or is lost because of a failed hard disk, you can delete that replica using ConsoleOne® or Novell iManager and replace it with a new one from the intact replica.
For more information on deleting replicas, see Deleting a Replica.