Backing up the recovery catalog

Hello everyone,  

I'm curious how you all are going about backing up your recovery catalogs. Do you do it through rman backups, or logical exports, or both? I've always done it through logical exports (exp), then compressed and backed up to tape through Netbackup with bpbackup - all scripted to run very smoothly and automatically after each database backup and archive log backup. This has served me well in the past, but now I'm setting up a new server and was just reviewing this configuration and the documentation that recommends backing up the recovery catalog via rman instead, so I'm considering changing my ways but not sure if that's a good idea. Just curious what others are doing and if you have any compelling reasons for doing it one way or the other.  

Thanks,
Brandon  

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