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Performance question : on raid 10 disks

Hi,

On a dedicated MaxDB server with raid 10 with 6 disks (3 stripes of 2 mirrored disks) and 256Mo caching capabilities, that store data on raw device, what is the better size of the stripe (that commonly is 64 or 128Ko in comparison to the 8Ko data pages)

Maybe it's is better to have an odd number of stripes ? then i could reorganise to have one system disk, one "spare disk" and 4 raid 10 disks (2 stripes of 2 mirrored disks) because I read that for raw devices, a stipe size should equal the primary io size (8Ko)...

greats !

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