Re: high throughput storage server?

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David Brown put forth on 2/23/2011 9:15 AM:

> Basically you are comparing a 4-drive RAID-6 to a 4-drive RAID-10.  I
> think the RAID-10 will be faster for streamed reads, and a lot faster

In this 4 drive configuration, RAID6 might be ever so slightly faster in
read performance, but RAID10 will very likely be faster in every other
category, to include degraded performance and rebuild time.  I can't say
definitively as I've not actually tested these setups head to head.

> for small writes.  You get improved safety in that you still have a
> one-drive redundancy after a drive has failed, but you pay for it in
> longer and more demanding rebuilds.

Just to be clear, you're saying the RAID6 rebuilds are longer and more
demanding than RAID10.  To state the opposite would be incorrect.

-- 
Stan
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