[OmniOS-discuss] performance extrremely low from nothing !

[Fábio Rabelo]

Thanks everyone ...

Turns out the issue was Hard Disks !

All of them !

This system belongs to a mining company, and in the last month they
made several deep explosions .

Even some windows glasses have been blown out, and nobody cared to say
that to me ...

Problem solved .

System will need to be rebuild from scratch using backups .

Very "enjoyable" 2 or 3 days of work ahead ...

Thanks everyone again ...


Fábio Rabelo

2016-05-24 23:04 GMT-03:00 Bob Friesenhahn <bfriesen at simple.dallas.tx.us>:
> On Tue, 24 May 2016, Dirk-Jan Wemmers wrote:
>
>> Hi Fabio,
>>
>> is your pool (or one of your individual vdev’s) almost full? ZFS
>> performance can take quite a nosedive when it fills up above say 80%.
>
>
> Also, deduplication can cause a precipitous nose-dive in performance if it
> is enabled, enough data is written, and there is not enough memory.
>
> Bob
> --
> Bob Friesenhahn
> bfriesen at simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
> GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/
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