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Date:      Tue, 05 Jul 2011 10:37:43 +0200
From:      Michael Fuckner <michael@fuckner.net>
To:        gerrit.kuehn@aei.mpg.de
Cc:        freebsd-fs@freebsd.org
Subject:   Re: Are thumpers still interesting in 2011 ? (raidz3 on x4500 @ 3.0gbps ...)
Message-ID:  <4E12CD57.7030403@fuckner.net>
In-Reply-To: <20110705101039.701cc042.gerrit@pmp.uni-hannover.de>
References:  <1309793921.2618.YahooMailRC@web120016.mail.ne1.yahoo.com>	<4E1212A7.70405@feral.com>	<4E1224BE.1020508@cran.org.uk>	<20110704211522.GA43675@icarus.home.lan>	<20110705090039.17321256.gerrit@pmp.uni-hannover.de>	<4E12C34A.8030409@fuckner.net> <20110705101039.701cc042.gerrit@pmp.uni-hannover.de>

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On 07/05/2011 10:10 AM, Gerrit K=C3=BChn wrote:
> On Tue, 05 Jul 2011 09:54:50 +0200 Michael Fuckner <michael@fuckner.net=
>
> wrote about Re: Are thumpers still interesting in 2011 ? (raidz3 on x45=
00
> @ 3.0gbps ...):
>=20
> MF> LSI 9211-8i- but I don't know anything about the price.
>=20
> Something around 200,-=E2=82=AC as far as I can see. This boils down to=
 more than
> 20,-=E2=82=AC/disk which is about twice the price of a cheap LSI1068 ca=
rd (around
> 11,-=E2=82=AC/disk).
Of Course 3GBit is cheaper than 6GBit- 6GBit is new.

> If you build machines with 24, 36 or even more disks, this
> can become quite an issue.
if you have so many disks I would recommend a chassis with expander
Backplane (like Supermicro 846E16). You have 4x6GBit to the backplane
which should be enough even if you connect 24 HDD.


> MF> Integrated Raid is currently not supported, but they work as HBA wi=
th
> MF> 8.2-STABLE.
>=20
> I guess the integrated raid is the problem when it comes to the price. =
I'm
> looking for something without integrated raid, which is usually much
> cheaper. Thanks for the hint, anyway.
LSI 3081E-R can also do integrated raid as well- 3801E with external
connectors can't do this because of the missing NVRAM Chip. IMHO
integrated raid it is supported in FreeBSD.

Regards,
 Michael!



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