From owner-freebsd-stable@FreeBSD.ORG Mon Jun 27 06:29:12 2005 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7ECF816A41C for ; Mon, 27 Jun 2005 06:29:12 +0000 (GMT) (envelope-from hausen@punkt.de) Received: from gate.ka.punkt.de (kagate.punkt.de [217.29.33.131]) by mx1.FreeBSD.org (Postfix) with ESMTP id 109D043D1F for ; Mon, 27 Jun 2005 06:29:11 +0000 (GMT) (envelope-from hausen@punkt.de) Received: from hugo10.ka.punkt.de (hugo10.ka.punkt.de [10.0.0.110]) by gate.ka.punkt.de with ESMTP id j5R6PQWX027977 for ; Mon, 27 Jun 2005 08:25:26 +0200 (CEST) Received: from hugo10.ka.punkt.de (localhost [127.0.0.1]) by hugo10.ka.punkt.de (8.12.10/8.12.10) with ESMTP id j5R6T9uL050452; Mon, 27 Jun 2005 08:29:09 +0200 (CEST) (envelope-from ry93@hugo10.ka.punkt.de) Received: (from ry93@localhost) by hugo10.ka.punkt.de (8.12.10/8.12.10/Submit) id j5R6T9dZ050451; Mon, 27 Jun 2005 08:29:09 +0200 (CEST) (envelope-from ry93) From: "Patrick M. Hausen" Message-Id: <200506270629.j5R6T9dZ050451@hugo10.ka.punkt.de> In-Reply-To: <20050627031918.GA20199@tmn.ru> To: "Sergey N. Voronkov" Date: Mon, 27 Jun 2005 08:29:09 +0200 (CEST) X-Mailer: ELM [version 2.4ME+ PL99f (25)] MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII Cc: freebsd-stable@freebsd.org Subject: Re: SATA vs SCSI ... X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 27 Jun 2005 06:29:12 -0000 Hi! > As an result: If you need to have FAST disk subsystem - buy SCSI. If you need > large storage or you don't want to pay to much money - buy SATA. Seconded. SATA offers larger capacity per buck. If price/performance is important, I'd seriously consider the ICP SATA cards. Another note: if you need the fastest disk subsystem you can buy, don't even think about implementing RAID5. Go for 1+0 instead. And buy an ICP card ;-) Another big plus for SCSI: unattended "auto" hot plug. If you have a RAID1+0 with 6 disks and without a hot spare (as we do - we needed "fast" and "as much as we can cram in the box") and if your hot plug backplane ist "SAFE-TE" compliant (another one of those beloved standards), then the cleaning staff could change a broken disk drive. The ICP card will automatically start the necessary rebuild if you exchange a broken disk with a factory new one. This could be important if you need 24x7 and don't have a qualified operator on site all the time. No need to start the RAID config utility. HTH, Patrick M. Hausen Leiter Netzwerke und Sicherheit -- punkt.de GmbH Internet - Dienstleistungen - Beratung Vorholzstr. 25 Tel. 0721 9109 -0 Fax: -100 76137 Karlsruhe http://punkt.de