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RAIDn

Posted on 2006-10-20
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Just wondering if anybody has implemented RAIDn, I cant seem to find any hardware controllers that support it, the only thing i can find is this: http://www.tandbergdatacorp.com/products/products_InteliNAS_iceNAS.htm
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Question by:Dinga84
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andyalder earned 150 total points
ID: 17788312
Never even heard of it before which isn't surprising since it's proprietory, they don't mention the write performance hit it gives you do they?

RAID 5 (they would call it RAIDn with n=1) 4 physical I/Os per logical write
RAID 6 (they would call it RAIDn with n=2) 6 physical I/Os per logical write

RAID 6 is often called RAID DP or RAID ADG or similar marketing terms. ou'll find hardware that supports double parity readily enough although they tend to be the top end. Tripple parity isn't all that useful since if you can afford that you probably want performance as well and so go for RAID 10 with hot spare.
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