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Old 01-13-2010, 08:33 PM
ABMX ABMX is offline
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Join Date: Jan 2010
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I can't speak for the performance side, but your redundancy kinda goes out the window if your applying a RAID1 to 2x RAID0 arrays.
In a RAID0+1, if a single drive fails in either of the two RAID0's the entire RAID0 should be dropped from the RAID1 as degraded because it can't match it's pair. Technically this only offers single drive redundancy no matter your side.
In a RAID1+0, it's conditional. If a single drive fails, as long as it's RAID1 partner doesn't fail you can still maintain the array through further failures in other pairs.
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