From owner-freebsd-performance@FreeBSD.ORG Wed Jun 18 11:54:58 2003 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9852C37B401 for ; Wed, 18 Jun 2003 11:54:58 -0700 (PDT) Received: from all.the.wimmins.come.to.loungenet.org (all.the.wimmins.come.to.loungenet.org [64.30.215.225]) by mx1.FreeBSD.org (Postfix) with ESMTP id 07D7643FD7 for ; Wed, 18 Jun 2003 11:54:58 -0700 (PDT) (envelope-from dclements@linkline.com) Received: from all.the.wimmins.come.to.loungenet.org (localhost [127.0.0.1]) id h5IIvdCB002459; Wed, 18 Jun 2003 11:57:39 -0700 (PDT) (envelope-from dclements@linkline.com) Received: (from doug@localhost)h5IIvdJE002458; Wed, 18 Jun 2003 11:57:39 -0700 (PDT) X-Authentication-Warning: all.the.wimmins.come.to.loungenet.org: doug set sender to dclements@linkline.com using -f Date: Wed, 18 Jun 2003 11:57:39 -0700 From: Doug Clements To: "Jin Guojun [DSD]" Message-ID: <20030618185739.GE2215@linkline.com> References: <20030614190033.7F0DE37B407@hub.freebsd.org> <20030615091254.M85497@bluhayz.org> <3EF0B507.2B1B6FDF@lbl.gov> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3EF0B507.2B1B6FDF@lbl.gov> User-Agent: Mutt/1.4.1i X-Mailman-Approved-At: Wed, 18 Jun 2003 11:55:44 -0700 cc: freebsd-performance@freebsd.org cc: agent dero Subject: Re: freebsd-performance Digest, Vol 4, Issue 7 X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: Doug Clements List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 18 Jun 2003 18:54:58 -0000 On Wed, Jun 18, 2003 at 11:52:55AM -0700, Jin Guojun [DSD] wrote: > Recently, we tested software RAID via CCD and VINUM, and compared > them to adaptec 2xxx RAID controller. The performance is the same. > The CPU are Xeon 2.8 GHz, SuperMicro MB with ServerWork Chipset. > Seagate 3147xxxxLC drives. > > Problem is the write is slow for all of them, especially when multiple writes. > > Heard from Adaptect that their 5400 RAID has best performance, but > never had one for testing. > > So, soft RAID is ok to save bucks for hardware. How was CPU usage during the tests? --Doug