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Date:      Tue, 21 Jan 2003 11:28:44 -0800
From:      Jeff Behl <jeff@expertcity.com>
To:        Dag-Erling Smorgrav <des@ofug.org>
Cc:        fs@FreeBSD.ORG
Subject:   Re: RAID alternatives
Message-ID:  <3E2D9F6C.7050600@expertcity.com>
In-Reply-To: <20030121102517.B10617@Odin.AC.HMC.Edu>
References:  <20030121102517.B10617@Odin.AC.HMC.Edu>

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We've been using a 3ware 7500 for months in a raid5 configuration; works 
great...

Brooks Davis wrote:
> On Tue, Jan 21, 2003 at 04:15:06PM +0100, Dag-Erling Smorgrav wrote:
> 
>> - Hardware RAID (more expensive, but less hassle and possibly higher
>>   performance).  The problem here is that IDE RAID controllers don't
>>   seem to support RAID 4 or 5; they only support RAID 0, which is
>>   pointless on its own; RAID 1, which is horribly wasteful; and JBOD,
>>   which is just a fancy name for disk concatenation, and is even more
>>   pointless than RAID 0.  The exception seems to be the 3ware 7500
>>   series - which FreeBSD doesn't seem to support.  I'd be happy to be
>>   contradicted :)
> 
> 
> FreeBSD definatly support the 3ware 7000 series and I'm fairly sure it
> support the newer ones as well.  3Ware seems to have done the right
> thing and maintained the API and device IDs across revs so the driver
> doesn't need changes.
> 
> -- Brooks
> 


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