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Re: raid10 write performance - Mailing list pgsql-performance

From Ivan Voras
Subject Re: raid10 write performance
Date
Msg-id hvsmbq$gok$1@dough.gmane.org
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In response to Re: raid10 write performance  (Greg Smith <greg@2ndquadrant.com>)
Responses Re: raid10 write performance  (Florian Weimer <fweimer@bfk.de>)
Re: raid10 write performance  (Scott Marlowe <scott.marlowe@gmail.com>)
List pgsql-performance
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On 06/22/10 16:40, Greg Smith wrote:
> Grzegorz Jaśkiewicz wrote:
>> raid: serveRAID M5014 SAS/SATA controller
>>
>
> Do the "performant servers" have a different RAID card?  This one has
> terrible performance, and could alone be the source of your issue.  The
> ServeRAID cards are slow in general, and certainly slow running RAID10.

What are some good RAID10 cards nowadays?

On the other hand, RAID10 is simple enough that soft-RAID
implementations should be more than adequate - any ideas why a dedicated
card has it "slow"?

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