Date: Mon, 27 May 2002 09:18:19 -0400 From: Mike Tancsa <mike@sentex.net> To: Cy.Schubert@uumail.gov.bc.ca, Kirk Strauser <kirk@strauser.com> Cc: freebsd-stable@FreeBSD.ORG Subject: Re: Hardware RAID vs vinum Message-ID: <5.1.0.14.0.20020527091240.03ab9ba8@marble.sentex.ca> In-Reply-To: <200205271302.g4RD2Nr1099239@cwsys.cwsent.com> References: <Message from Kirk Strauser <kirk@strauser.com> <87r8jy9ri6.fsf@pooh.int>
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At 06:02 AM 27/05/2002 -0700, Cy Schubert - CITS Open Systems Group wrote:
>The moral of the story: You get better mileage out of a hardware RAID
>controller.
But there are a number of factors that mitigate this.
a) is the hardware on the card adequate. e.g. an old DAC-960 will not be as
fast as vinum running on a P4.
b) are the drivers any good
c) how good is the software implementation of RAID.
I posted to STABLE a while back comparing a couple of benchmarks that
showed this not to always be the case.
---Mike
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