On Sun, Dec 18, 2011 at 10:46 PM, Jan-Aage Frydenbø-Bruvoll
<j...@architechs.eu> wrote:
> The affected pool does indeed have a mix of straight disks and
> mirrored disks (due to running out of vdevs on the controller),
> however it has to be added that the performance of the affected pool
> was excellent until around 3 weeks ago, and there have been no
> structural changes nor to the pools neither to anything else on this
> server in the last half year or so.

Is the pool over 80% full? Do you have dedup enabled (even if it was
turned off later, see "zpool history")?

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