From owner-freebsd-hackers Mon Sep 10 22:41: 0 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from freebsd.dk (fw-rl0.freebsd.dk [212.242.86.114]) by hub.freebsd.org (Postfix) with ESMTP id DAA3C37B405; Mon, 10 Sep 2001 22:40:56 -0700 (PDT) Received: (from sos@localhost) by freebsd.dk (8.11.3/8.11.3) id f8B5fAC10992; Tue, 11 Sep 2001 07:41:10 +0200 (CEST) (envelope-from sos) From: Søren Schmidt Message-Id: <200109110541.f8B5fAC10992@freebsd.dk> Subject: Re: HPT370 RAID or Vinum? In-Reply-To: <20010911090518.G733@canberra.worldwide.lemis.com> "from Greg Lehey at Sep 11, 2001 09:05:18 am" To: Greg Lehey Date: Tue, 11 Sep 2001 07:41:06 +0200 (CEST) Cc: john_wilson100@excite.com, freebsd-hackers@FreeBSD.org, sos@FreeBSD.org Reply-To: sos@freebsd.dk X-Mailer: ELM [version 2.4ME+ PL88 (25)] MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=ISO-8859-1 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG It seems Greg Lehey wrote: > > I reckon if the RAID functions are implemented in HPT BIOS (in software), > > I'll be better off with Vinum. > > Ultimately, all RAID is software RAID. The issue is just how it's > implemented. Exactly. > I'd guess that the HPT will give you far worse performance than Vinum, > though I'd be very interested to see confirmation or denial of this > guess. If you feel like benchmarking, contact me first. And why is that ? for RAID's with the same parameters, I'd expect them to perform equal, maybe with a sligtht advantage to the ATA driver since it saves a few cycles by being tighter integrated. -Søren To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message