Using Replication to Back Up Namespace Information
Directory replication is always the most reliable way to back up the information that is in your namespace. When you create a new replica of a directory at a clearinghouse, you are not only distributing the information but also creating an up-to-date, real-time backup of the information. If a replica in one clearinghouse becomes unavailable, users can look up the information they need in another replica of the directory in some other clearinghouse. The more replicas of a directory you create, the more likely users will always be able to find the information that is contained in the directory somewhere in the namespace.
If an entire clearinghouse is corrupted, you can restore it by creating a new clearinghouse and then creating new replicas of the directories that were stored there. (See Managing CDS Directories for complete information on how to create a replica.)