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Date:      Fri, 18 Dec 1998 08:05:35 +0100
From:      sthaug@nethelp.no
To:        grog@lemis.com
Cc:        patton@sysnet.net, dswartz@druber.com, freebsd-isp@FreeBSD.ORG
Subject:   Re: RAID solutions?
Message-ID:  <5412.913964735@verdi.nethelp.no>
In-Reply-To: Your message of "Fri, 18 Dec 1998 13:14:34 %2B1030"
References:  <19981218131434.M486@freebie.lemis.com>

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> Striping (``RAID 0'') will give you better speed for concurrent
> access, which is what you are talking about here.  Mirroring (RAID-1)
> will give you better read performance, assuming your system balances
> reads across the mirror, but worse write performance.

... and the FreeBSD ccd mirroring does *not* balance the reads. It always
reads from the first disk in a mirror.

Steinar Haug, Nethelp consulting, sthaug@nethelp.no

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