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SubjectRe: O_DIRECT to md raid 6 is slow
On 15/08/2012 01:49, Andy Lutomirski wrote:
> If I do:
> # dd if=/dev/zero of=/dev/md0p1 bs=8M
[...]
> It looks like md isn't recognizing that I'm writing whole stripes when
> I'm in O_DIRECT mode.

I see your md device is partitioned. Is the partition itself stripe-aligned?

Cheers,

John.



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