From owner-freebsd-isp  Thu Dec 17 23:05:47 1998
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From: sthaug@nethelp.no
Received: (qmail 5414 invoked by uid 1001); 18 Dec 1998 07:05:35 +0000 (GMT)
To: grog@lemis.com
Cc: patton@sysnet.net, dswartz@druber.com, freebsd-isp@FreeBSD.ORG
Subject: Re: RAID solutions?
In-Reply-To: Your message of "Fri, 18 Dec 1998 13:14:34 +1030"
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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