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Date:      Fri, 1 Jul 2005 11:07:48 -0600
From:      "Chad Leigh -- Shire.Net LLC" <chad@shire.net>
To:        Peter Jeremy <PeterJeremy@optushome.com.au>
Cc:        FreeBSD Questions <questions@freebsd.org>, hardware@freebsd.org
Subject:   Re: RAID Cards
Message-ID:  <07DFC3D6-E165-40F3-83FC-7AB92A1B9EF5@shire.net>
In-Reply-To: <20050701091954.GC83739@cirb503493.alcatel.com.au>
References:  <20050630205744.GN33728@ratchet.nebcorp.com> <20050630211444.19C6343D48@mx1.FreeBSD.org> <20050701091954.GC83739@cirb503493.alcatel.com.au>

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On Jul 1, 2005, at 3:19 AM, Peter Jeremy wrote:

> On Thu, 2005-Jun-30 17:18:15 -0400, Simon wrote:
>
>> It's not only CPU factor, I don't trust software RAID.
>>
>
> I suspect you don't have a choice.  Either the RAID is done in the  
> kernel
> on your host system or the RAID is done in the the firmware on your  
> RAID
> card.  In either case, it's software.

Sure, everything in the end is SW anymore, at least at a controlling  
level.  But it does not involve the OS and can have special HW  
circuits used to perform certain functions much faster.  It reduces  
the strain on the OS.

Chad

---
Chad Leigh -- Shire.Net LLC
Your Web App and Email hosting provider
chad@shire.net





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