Quote:
Originally Posted by haertig
This is why the saying goes: "RAID is not a backup system". RAID stands for "Redundant Array of Independent Disks". So if you experience corruption on one disk, then RAID diligently copies that corruption to the other disks in the array, so you end up with "redundant corruption". RAID is (should be!) used to gain better system uptime or speed. It doesn't do diddly squat for backups. RAID systems need to be backed up just the same as non-RAID systems do. I guess IA didn't know that.
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I don't know the details of IA operations then or now, but point out that if udetected long enough the corruption would be copied to the full set of full backups.