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Date:      Mon, 22 Aug 2005 20:19:54 -0500
From:      "Jim C. Nasby" <decibel@decibel.org>
To:        Uzi Klein <uzi@bmby.com>
Cc:        freebsd-database@freebsd.org, jmc <jcagle@gmail.com>, freebsd-hardware@freebsd.org
Subject:   Re: FreeBSD hardware solution for a database server
Message-ID:  <20050823011954.GM17203@decibel.org>
In-Reply-To: <43088442.7000704@bmby.com>
References:  <040f01c5a4b9$f5d2dff0$0700a8c0@uzi> <6863f0c905081906061290c642@mail.gmail.com> <43088442.7000704@bmby.com>

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On Sun, Aug 21, 2005 at 03:40:18PM +0200, Uzi Klein wrote:
> 2 mirrored drives mounted as /
> 3 RAID 5 drives mounted as /var

RAID5 pretty much sucks for databases that do anything more than 1-5%
writes.

> Are you suggesting AMD based boxes outperforms Intel based machines?
> That's what I'm really interested in...

At least with PostgreSQL they do, by a large margin.

> I know it's time for a dedicated fast database server.
> If i optimized my database and hardware settings, i could gain months, 
> not more.
> The question is upgrade to what (Assuming my DL380 isn't enough)

Keep in mind that a poorly designed app will completely kill you once
you try and scale past a certain level.

Also, I've heard that PostgreSQL tends to do better on complex queries
than MySQL if migrating is an option. Might be worth looking at. Note
that the out-of-the-box config for PostgreSQL is appropriate for like a
486, so you'd need to do some tweaking.
-- 
Jim C. Nasby, Database Architect                decibel@decibel.org 
Give your computer some brain candy! www.distributed.net Team #1828

Windows: "Where do you want to go today?"
Linux: "Where do you want to go tomorrow?"
FreeBSD: "Are you guys coming, or what?"



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