Re: Benchmark: Dell/Perc 6, 8 disk RAID 10

From: Craig James <craig_james(at)emolecules(dot)com>
To: Justin <justin(at)emproshunts(dot)com>
Cc: Greg Smith <gsmith(at)gregsmith(dot)com>, pgsql-performance(at)postgresql(dot)org
Subject: Re: Benchmark: Dell/Perc 6, 8 disk RAID 10
Date: 2008-03-17 18:33:28
Message-ID: 47DEB978.2030307@emolecules.com
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Justin wrote:
>> 2000 tps ??? do you have fsync turned off ?
>>
>> Dave
>>
>
> No its turned on.

Unless I'm seriously confused, something is wrong with these numbers. That's the sort of performance you expect from a good-sized RAID 10 six-disk array. With a single 7200 rpm SATA disk and XFS, I get 640 tps. There's no way you could 2000 tps from a single disk.

Craig

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