What are the best practices for RDX backup ?

I am looking to replace my broken DAT drive with an RDX drive. We run full and incremental backups daily. With our DAT drive we rotated the tapes everyday. We have run into issues in the past with DAT drives failing and tapes going bad, etc. Now we are ready for something more reliable. What are the best practices when using RDX? We back up about 80G and the data will be increasing as time goes on. Do we need to have Media for each day as we did with the DAT drive? Purchasing RDX media for each weekday will end up being pretty expensive on top of the drive itself.
theADDkiDDAsked:
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Thomas RushCommented:
If you're talking an RDX drive that's got the included automatic backup software (HP's does; I don't know about others), then my suggestion is --
- Have a 3-cartridge rotation.  
- label them "rock", "paper", "scissors"
- one cartridge is always offsite, one is always the active backup, and one is "in transit".
- if you ever get confused, you play the kids' game "rock, paper, scissors", and of the two you're looking at, the one that "wins" stays, the one that "loses" goes to the other location

This gives you three cartridges to recover from: today's, yesterday's, and the day-before-yesterday's -- great flexibility and coverage.

Please remember that no hard drive is designed for archival storage.  If you need files going back a year or more, there's nothing better than.... tape.
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