Re: Raid 5 vs Raid 10 Benchmarks Using bonnie++

On Aug 17, 2011, at 1:31 PM, ktm(at)rice(dot)edu wrote:

> On Wed, Aug 17, 2011 at 01:26:56PM -0500, Ogden wrote:
>> I am using bonnie++ to benchmark our current Postgres system (on RAID 5) with the new one we have, which I have configured with RAID 10. The drives are the same (SAS 15K). I tried the new system with ext3 and then XFS but the results seem really outrageous as compared to the current system, or am I reading things wrong?
>>
>> The benchmark results are here:
>>
>> http://malekkoheavyindustry.com/benchmark.html
>>
>>
>> Thank you
>>
>> Ogden
>
> That looks pretty normal to me.
>
> Ken

But such a jump from the current db01 system to this? Over 20 times difference from the current system to the new one with XFS. Is that much of a jump normal?

Ogden