The Oracle DBMS supports pipes as a means of interprocess communication among database sessions. It distinguishes private pipes from public pipes. To enforce security, private pipes owned by the user SYS may not be accessed by any other database user. The Recovery Manager (RMAN) pipe interface leverages private pipes. It is ideally suited to integrate RMAN into portable third-party backup and restore tools. It is also very well suited to implement robust scripts, which can handle catalog instance failures, block corruptions, and internode parallel backup and restore for Real Application Clusters (RAC) installations.
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