Date: Sun, 11 Nov 2001 09:33:56 +0100 (CET) From: Søren Schmidt <sos@freebsd.dk> To: Mike Smith <msmith@FreeBSD.ORG> Cc: Greg Lehey <grog@FreeBSD.ORG>, john_wilson100@excite.com, freebsd-hackers@FreeBSD.ORG, sos@FreeBSD.ORG Subject: Re: HPT370 RAID or Vinum? Message-ID: <200111110833.fAB8Xun88149@freebsd.dk> In-Reply-To: <200111102227.fAAMRQV01034@mass.dis.org>
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It seems Mike Smith wrote: > > Agreed. I don't think the RAIDs will have the same parameters. Most > > of these cheap controllers have fairly simplistic algorithms. Note > > that I said "guess", though. In my language, that means "don't know > > for sure". I'd really like to see some objective benchmarks. > > Er. > > These "cheap controllers" don't have any algorithms at all to speak of; > they're just ATA controllers with BIOS code that supposedly understands > striping/mirroring. There is no algorithm to speak of involved with striping, and just a little more in mirroring in the error case, but anyways.. > The "algorithms" are in the 'ar' driver, which should really just be a > vinum shim. Well, the way vinum is implemented that wont work unfortunately. -Søren To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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