linux-kernel - Re: Linux: Why software RAID?

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Message-ID: <Pine.GSO.4.64.0608240742000.16414@montezuma.acc.umu.se>
Date:	Thu, 24 Aug 2006 07:43:30 +0200 (MEST)
From:	Mattias Wadenstein <maswan@....umu.se>
To:	Chris Friesen <cfriesen@...tel.com>
cc:	Jeff Garzik <jeff@...zik.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Linux RAID Mailing List <linux-raid@...r.kernel.org>,
	marc@...kel.com
Subject: Re: Linux: Why software RAID?

On Wed, 23 Aug 2006, Chris Friesen wrote:

> Jeff Garzik wrote:
>
>> But anyway, to help answer the question of hardware vs. software RAID, I 
>> wrote up a page:
>>
>>     http://linux.yyz.us/why-software-raid.html
>
> Just curious...with these guys 
> (http://www.bigfootnetworks.com/KillerOverview.aspx) putting linux on a PCI 
> NIC to allow them to bypass Windows' network stack, has anyone ever 
> considered doing "hardware" raid by using an embedded cpu running linux 
> software RAID, with battery-backed memory?

I'd expect this to be the reason why md offload support to xor engines and 
whatever turns up. It makes very little sense for a modern server/desktop 
CPU, but for the embedded ones it does.

/Mattias Wadenstein
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