Did they indicate why they thought the Drobo wasn't a good idea for bootable backups? It should work fine (and they've even communicated with me about it)...
It's really not a good idea to separate the backups the way you're thinking of doing it. I mean, you can back up everything but the pictures, music and documents to the 160, but I'd get a 500GB to back up to, and use the Drobo for 'archived' pictures, etc.
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--Dave Nanian
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