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 -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html