You can back up and restore your CDB using either RDS DB snapshots or Recovery Manager (RMAN).
Backing up and restoring a CDB using
DB snapshots
DB snapshots work similarly in the CDB and non-CDB architectures. The principal differences are as follows:
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When you restore a DB snapshot of a CDB, you can't rename the CDB. The CDB is named
RDSCDBand can't be changed. -
When you restore a DB snapshot of a CDB, you can't rename PDBs. You can modify the PDB name by using the modify-tenant-database command.
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To find tenant databases in a snapshot, use the CLI command describe-db-snapshot-tenant-databases.
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You can't directly interact with the tenant databases in a CDB snapshot that uses the multi-tenant architecture configuration. If you restore the DB snapshot, you restore all its tenant databases.
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RDS for Oracle implicitly copies tags on a tenant database to the tenant database in a DB snapshot. When you restore a tenant database, the tags appear in the restored database.
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If you restore a DB snapshot and specify new tags using the
--tagsparameter, the new tags overwrite all existing tags. -
If you take a DB snapshot of a CDB instance that has tags, and you specify
--copy-tags-to-snapshot, RDS for Oracle copies tags from the tenant databases to the tenant databases in the snapshot.
For more information, see Oracle Database considerations.
Backing up and restoring a CDB using RMAN
To learn how to back up and restore a CDB or individual tenant database using RMAN, see Performing common RMAN tasks for Oracle DB instances.
