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DateWed, 23 Aug 2006 22:25:37 -0700
From"H. Peter Anvin" <>
SubjectRe: Linux: Why software RAID?
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?
> 
> It would theoretically allow you to remain feature-compatible by 
> downloading new kernels to your RAID card.
> 

Yes.  In fact, I have been told by several RAID chip vendors that their 
customers are *strongly* demanding that their chips be able to run Linux 
  md (and still use whatever hardware offload features.)

So it's happening.

	-hpa
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