From: Bill Davidsen <davidsen@tmr.com>
To: Dan <dan@korstad.net>
Cc: linux-raid@vger.kernel.org
Subject: Re: future hardware
Date: Fri, 27 Oct 2006 17:22:26 -0400 [thread overview]
Message-ID: <45427892.4070008@tmr.com> (raw)
In-Reply-To: <000901c6f509$1bd65560$eb00000a@mine3ad5e808fe>
Dan wrote:
>I have been using an older 64bit system, socket 754 for a while now. It has
>the old PCI bus 33Mhz. I have two low cost (no HW RAID) PCI SATA I cards
>each with 4 ports to give me an eight disk RAID 6. I also have a Gig NIC,
>on the PCI bus. I have Gig switches with clients connecting to it at Gig
>speed.
>
>As many know you get a peak transfer rate of 133 MB/s or 1064Mb/s from that
>PCI bus http://en.wikipedia.org/wiki/Peripheral_Component_Interconnect
>
>The transfer rate is not bad across the network but my bottle neck it the
>PCI bus. I have been shopping around for new MB and PCI-express cards. I
>have been using mdadm for a long time and would like to stay with it. I am
>having trouble finding an eight port PCI-express card that does not have all
>the fancy HW RAID which jacks up the cost. I am now considering using a MB
>with eight SATA II slots onboard. GIGABYTE GA-M59SLI-S5 Socket AM2 NVIDIA
>nForce 590 SLI MCP ATX.
>
>What are other users of mdadm using with the PCI-express cards, most cost
>effective solution?
>
There may still be m/b available with multiple PCI busses. Don't know if
you are interested in a low budget solution, but that would address
bandwidth and use existing hardware.
Idle curiousity: what kind of case are you using for the drives? I will
need to spec a machine with eight drives in the December-January timeframe.
--
bill davidsen <davidsen@tmr.com>
CTO TMR Associates, Inc
Doing interesting things with small computers since 1979
next prev parent reply other threads:[~2006-10-27 21:22 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-21 12:04 future hardware Dan
2006-10-21 16:52 ` Justin Piszcz
2006-10-22 2:38 ` Mike Hardy
2006-10-22 2:02 ` Richard Scobie
2006-10-27 21:22 ` Bill Davidsen [this message]
2006-10-27 21:56 ` Daniel Korstad
2006-10-27 22:18 ` Daniel Korstad
2006-10-29 22:29 ` Doug Ledford
2006-10-31 16:11 ` Rob Bray
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