Whenever you need to check for a directory or file to be restored, locate recovery points, or to just perform a search, instead of querying the content of the entire database, Arcserve Backup performs the query on just the catalog files with the help of the catalog index.If this catalog browsing finds the details in the catalog database folder for a specific session, it will not look in the Arcserve Backup database.但是，如果未发现，则它将再次尝试在 Arcserve Backup 数据库中查找。如果在编录数据库文件夹和 Arcserve Backup 数据库中仍然均未发现该会话的详细信息，则它将提示您选择是否要再次合并会话，以在合并过程将编录文件重新创建到编录数据库文件夹或将详细信息从磁带会话内容重新生成到 Arcserve Backup 数据库。
Note:All application agent sessions except for Microsoft Exchange Server, such as SQL Server, Informix, Oracle, Microsoft SharePoint Server, Lotus Notes etc, do not support catalog browsing and the details from those sessions will be inserted into the Arcserve Backup database.
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