On Tue, Sep 21, 2010 at 4:03 PM, <a.smith@stripped> wrote:
> Quoting Johan De Meersman <vegivamp@stripped>:
>
>> Your raid controller is "lying" to you - you can't have RAID10 with just
>> two
>> disks :-p Don't worry about that, though - it's a good enough config.
>>
>
> Good enough? If he is genuinely saturating the disk with IO (as he states
> the problem is IO) then it isnt good enough. But perhaps that needs a bit
> more analysis before we really know...
It takes quite some doing to fill a 15krpm RAID-1 with IO, all the way
through all the controller, OS and SQL caches. A lot more investigating is
needed before concluding that the symptom is indeed the cause.
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