I am about to implement a 2-node 10g RAC cluster (RedHat ES). Shared storage is by way of a SAN. I plan to use RAW+ASM for datafile management. I am unsure as to the best way to implement a backup strategy. I was hoping to use RAW+ASM for the flash_recovery_area and use RMAN to back up the database. That will be OK, but somehow I need to get the flash_recovery_area on to tape. Should I do something else in order to get tape backups? The option of the third-party media management/backup software integrated with RMAN is not available to us (due to cost).
Oracle does supply, free of charge, third-party media software by Legato and/or Veritas with 10g. This software can be used to have RMAN write to a locally attached tape drive on your database server. So this option is still available to you.
Another option is to have RMAN back up to a cooked file system and then have regular OS routines pick up the RMAN backup and copy to tape using simple tar commands.