Extended directory catalogs and directory assistance
Unless you integrate an extended directory catalog into a server's primary Domino® Directory, a server must use directory assistance to look up information in an extended directory catalog, and to determine whether to use an extended directory catalog for client authentication and/or group lookups for database authorization.
About this task
After you create a Directory Assistance document for an extended directory catalog in a directory assistance database, to optimize look up performance, remove any Directory Assistance documents for the individual Domino directories aggregated into the directory catalog.
Make sure to aggregate all the fields that need to be searched because once servers search an extended directory catalog they cannot use directory assistance to access the source Domino Directories directly to retrieve field values that are not aggregated.
You can set up a server to use more than one extended directory catalog by creating a Directory Assistance document for each one.