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I've considered getting a commercial RAID NAS, e.g. QNAP or Synology but hesitate because I want to be absolutely confident regarding disaster recovery. I'd prefer not to be at the mercy of the manufacturer.
Suppose I've been a fool and not remembered that RAID is not a backup. One day a disk in my RAID 5 or 6 array fails, the box itself breaks, and I can't buy the same box again. Are there open source tools that can reliably rebuild my data on a new drive/array?
This is why I want to avoid drobo, but would welcome suggestions on good manufacturers or principles to make disaster recovery simple. E.g. what if I had a 4 bay NAS and set up 2x RAID 1 mirrors which were presented as one drive. In my scenario above would I be able to just copy directly off the healthy drives once plugged into a computer?
Yes raid 1 mirror is the safest, the drive(s) can be read on another PC by itself, at the worst you will have to use "import foreign drive" in disk management to get it mounted in windows explorer. – Moab – 2010-11-30T22:25:36.667