When setting backup with intellisnap with Oracle appear "Unable to proceed with rman based snap to tape as catalog has not been specified by the user."
Error backup Intellisnap for Oracle

Best answer by Piyush Nagar
Hi ,
ASM supports only Rman based backup copy as mentioned in documentation. Rman backup copy using proxy requires a dedicated db instance on proxy with the same name as Production/source db. Recovery Catalog with source database registered is must and mandatory requirement. Recovery catalog should be accessible from source and proxy machine.
Using dedicated proxy during rman backup copy --> because we mount database on proxy using snapshot control file and unmount once backup completes, there is no way to register/catalog backuppieces/Full and incremental backups without having recovery catalog. You can create a separate dedicated instance for recovery catalog with source oracle database registered that also serves long term retention of backup pieces in recovery catalog.
Possible Combinations with rman based backup copy you can get :
- Using source as proxy without catalog (sRMANDATAFILECOPY default) -->Only Full backup possible: http://documentation.commvault.com/commvault/v11/article?p=35461_1.htm
- Using source as proxy with catalog (sRMANDATAFILECOPY default) --> Only Full backup possible: http://documentation.commvault.com/commvault/v11/article?p=35461_1.htm
- Using different proxy <catalog is must> . Rman Full and incremental backup copy is supported
Thanks
Piyush
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