Konstantin Sharlaimov <konstantin.sharlaimov@xxxxxxxxx> writes:
> This patch adds RAID1 read balancing to device mapper. A read operation
> that is close (in terms of sectors) to a previous read or write goes to
> the same mirror.
I wonder if there shouldn't be a way to turn this off (or if there
already is one).
Or more generaly an option to say what is "near". Specifically I would
like to teach the raid1 layer that I have 2 external raid boxes with a
16k chunk size. So read/write within a 16k chunk will be the same disk
but the next 16k are a different disk and "near" doesn't apply
anymore.
MfG
Goswin
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