On Tue, Dec 8, 2009 at 5:13 PM, Timo Neuvonen <timo-news AT tee-en DOT net> 
wrote:
>
> "John Drescher" <drescherjm AT gmail DOT com> kirjoitti viestissä
> news:387ee2020912081330v6e8fa197s5009971859acbd75 AT mail.gmail DOT com...
>> On Tue, Dec 8, 2009 at 4:16 PM, Hayden Katzenellenbogen
>> <hayden AT nextlevelinternet DOT com> wrote:
>>> Yes it is a raid-6 configuration running on a 3ware 9690SA-8I.
>>>
>
> I've never had this card, it should be powerful one I think. But I've
> sometimes experienced really poor write performance with 3ware 9550 and 9650
> cards when unit's write cache was disabled (controller default). If it is
> disabled, try if it has any effect.
>

Yes if the cache is disabled you will get horrible random write
performance. If this is also the spool drive that can be the reason.

John

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