From owner-freebsd-questions@FreeBSD.ORG Thu Sep 14 18:50:55 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3B3B316A407 for ; Thu, 14 Sep 2006 18:50:55 +0000 (UTC) (envelope-from skylar@cs.earlham.edu) Received: from quark.cs.earlham.edu (cs.earlham.edu [159.28.230.3]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8EE3D43D46 for ; Thu, 14 Sep 2006 18:50:54 +0000 (GMT) (envelope-from skylar@cs.earlham.edu) Received: from [128.95.231.218] (angband.gs.washington.edu [128.95.231.218]) (authenticated bits=0) by quark.cs.earlham.edu (8.13.6/8.13.3) with ESMTP id k8EIoXBd049800 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 14 Sep 2006 14:50:37 -0400 (EDT) (envelope-from skylar@cs.earlham.edu) X-Authentication-Warning: quark.cs.earlham.edu: Host angband.gs.washington.edu [128.95.231.218] claimed to be [128.95.231.218] Message-ID: <4509A45A.9060409@cs.earlham.edu> Date: Thu, 14 Sep 2006 11:50:02 -0700 From: Skylar Thompson Organization: Earlham College Computer Science Department User-Agent: Mail/News 1.5.0.5 (X11/20060728) MIME-Version: 1.0 To: Bill Moran References: <45096C88.4030203@esiee.fr> <20060914111843.91BC.GERARD@seibercom.net> <4509768C.5030602@esiee.fr> <20060914114608.e130c6a0.wmoran@collaborativefusion.com> In-Reply-To: <20060914114608.e130c6a0.wmoran@collaborativefusion.com> X-Enigmail-Version: 0.94.0.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigCE4EC8392A7BCE2A3A3FB846" X-Greylist: Sender succeded SMTP AUTH authentication, not delayed by milter-greylist-1.6 (quark.cs.earlham.edu [159.28.230.3]); Thu, 14 Sep 2006 14:50:38 -0400 (EDT) X-Virus-Scanned: ClamAV 0.88.2/1623/Wed Jul 26 18:35:11 2006 on quark.cs.earlham.edu X-Virus-Status: Clean X-Scanned-By: MIMEDefang 2.56 on 159.28.230.3 X-Spam-Status: No, score=-2.5 required=8.0 tests=AWL,BAYES_00 autolearn=ham version=3.1.3 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on quark.cs.earlham.edu Cc: Frank Bonnet , freebsd-questions@freebsd.org Subject: Re: SCSI vs. SATA (was Re: Upgrading our mail server) X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: skylar@cs.earlham.edu List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 Sep 2006 18:50:55 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigCE4EC8392A7BCE2A3A3FB846 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Bill Moran wrote: > > Has anyone every verified whether or not SATA has the problems that pla= gued > ATA? Such as crappy quality and lying caches? > > Personally, I still demand SCSI on production servers because it still > seems as if: > a) The performance is still better > b) The reliability is still better > > But I haven't taken a comprehensive look at the SATA offerings. It als= o > seems as if SATA is more limiting. Most SCSI cards can support 16 > devices, does SATA have similar offerings? I know it's not common, but= > if you need that many spindles, you need them! I've used 15-drive SATA Promise arrays with some success. They come in both Fibre Channel and SCSI varieties, and are about $10k with 400GB SATA drives. I've run them up to ~170MB/s with RAID-5, which is more than enough for me. You get the best of both the SATA and SCSI/FC worlds.= --=20 -- Skylar Thompson (skylar@cs.earlham.edu) -- http://www.cs.earlham.edu/~skylar/ --------------enigCE4EC8392A7BCE2A3A3FB846 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.3 (SunOS) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFFCaRasc4yyULgN4YRAmgMAJ9+Ks2juSADrUFtu1uaPDj1P18rzgCfebkE lFj6ZSPLOuNDrtPdbOQQC+I= =Eigo -----END PGP SIGNATURE----- --------------enigCE4EC8392A7BCE2A3A3FB846--