Oracle 10g配置RMAN RECOVERY CATALOG-ylw6006
Control file:– Simpler administration
– Default
Recovery catalog:
– Replicates control file data
– Has room for more data
– Can service many targets
– Can store RMAN scripts
RMAN repository data is always stored in the control file of the target database. But it can also be stored in a separate database, called a recovery catalog.
A recovery catalog preserves backup information in a separate database, which is useful in the event of a lost control file. This allows you to store a longer history of backups than what is possible with a control file–based repository. A single recovery catalog is able to store information for multiple target databases. The recovery catalog can also hold RMAN stored scripts, which are sequences of RMAN commands for common backup tasks. Centralized storage of scripts in the recovery catalog can be more convenient than working with command files.
Usage of a separate recovery catalog database is not recommended for small installations where administration of a separate recovery catalog database would be burdensome
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