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Re: What's the best hardver for PostgreSQL 8.1?

From: Alex Turner <armtuk(at)gmail(dot)com>
To: Benjamin Arai <barai(at)cs(dot)ucr(dot)edu>
Cc: Luke Lonergan <LLonergan(at)greenplum(dot)com>, pgsql-performance(at)postgresql(dot)org
Subject: Re: What's the best hardver for PostgreSQL 8.1?
Date: 2005-12-26 22:54:54
Message-ID: 33c6269f0512261454p3ac8a251w6071bc1cac0a7a8e@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-performance
Yes - they work excellently. I have several medium and large servers
running 3ware 9500S series cards with great success.  We have
rebuilding many failed RAID 10s over the course with no problems.

Alex

On 12/26/05, Benjamin Arai <barai(at)cs(dot)ucr(dot)edu> wrote:
>  Have you have any experience rebuilding arrays in linux using the 3Ware
> utilities?  If so, did it work well?
>
>
>  Luke Lonergan wrote:
>  Benjamin,
>
>
>
>  Have you done any benchmarking of the 9550SX against a software raid
> configuration?
>
>
> Interesting - no, not on SATA, mostly because I've had awful luck with Linux
> drivers and SATA. The popular manufacturers of SATA to PCI bridge chipsets
> are Silicon Image and Highpoint, and I've not seen Linux work with them at
> any reasonable performance yet. I've also had problems with Adaptec's cards
> - I think they manufacture their own SATA to PCI chipset as well. So far,
> I've only had good luck with the on-chipset Intel SATA implementation. I
> think the problems I've had could be entirely driver-related, but in the end
> it doesn't matter if you can't find drivers that work for Linux.
>
> The other problem is getting enough SATA connections for the number of disks
> we want. I do have two new Areca SATA RAID cards and I'm going to benchmark
> those against the 3Ware 9550SX with 2 x 8 = 16 disks on one host.
>
> I guess we could run the HW RAID controllers in JBOD mode to get a good
> driver / chipset configuration for software RAID, but frankly I prefer HW
> RAID if it performs well. So far the SATA host-based RAID is blowing the
> doors off of every other HW RAID solution I've tested.
>
> - Luke
>
>
>
>
> --
>  Benjamin Arai
>  barai(at)cs(dot)ucr(dot)edu
>  http://www.benjaminarai.com

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