From owner-freebsd-questions@FreeBSD.ORG Wed Oct 6 10:18:35 2004 Return-Path: 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 8481916A4CE for ; Wed, 6 Oct 2004 10:18:35 +0000 (GMT) Received: from sgijgw.sgi.co.jp (sgijgw.sgi.co.jp [218.45.228.3]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5C2DA43D31 for ; Wed, 6 Oct 2004 10:18:34 +0000 (GMT) (envelope-from saka@sgi.co.jp) Received: from sgitokyo.nsg.sgi.com (sgitokyo.sgi.co.jp [192.82.194.2]) by sgijgw.sgi.co.jp (8.11.6/3.7Wpl-12-04051414) id i96AIXI32557 for ; Wed, 6 Oct 2004 19:18:33 +0900 Received: from ebi.sgi.co.jp (ebi.sgi.co.jp [192.82.190.216]) by sgitokyo.nsg.sgi.com (8.9.3p2/3.6W-04051414) id TAA25816 for ; Wed, 6 Oct 2004 19:18:32 +0900 (JST) Received: (qmail 5129252 invoked from network); 6 Oct 2004 10:18:35 -0000 Received: from localhost (127.0.0.1) by localhost with SMTP; 6 Oct 2004 10:18:35 -0000 Date: Wed, 06 Oct 2004 19:18:34 +0900 (JST) Message-Id: <20041006.191834.229740712.saka@sgi.co.jp> To: freebsd-questions@FreeBSD.org From: Yui Sakazume X-Mailer: Mew version 3.3 on XEmacs 21.4.15 (Security Through Obscurity) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Subject: RAID performance X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Oct 2004 10:18:35 -0000 Hello, I have installed FreeBSD-4.10 to NEC Express5800 120R. I attached LSI Logic MegaRAID SATA 150-6 with six SATA disks. And configure RAID 5 LUN. But, I/O prformance is poor(about 5MB/s). Is amr suitable for MegaRAID SATA 150-6 ? Please tell me newfs parameters if there is recommendation. Best regards, Yui