From owner-freebsd-hardware Mon Sep 4 13:16:53 2000 Delivered-To: freebsd-hardware@freebsd.org Received: from cage.simianscience.com (cage.simianscience.com [64.7.134.1]) by hub.freebsd.org (Postfix) with ESMTP id 2F2F437B422; Mon, 4 Sep 2000 13:16:51 -0700 (PDT) Received: from chimp (chimp [192.168.0.2]) by cage.simianscience.com (8.11.0/8.9.3) with ESMTP id e84KGkV18806; Mon, 4 Sep 2000 16:16:47 -0400 (EDT) (envelope-from mike@sentex.net) Message-Id: <4.2.2.20000904160941.07469d88@mail.sentex.net> X-Sender: mdtancsa@mail.sentex.net X-Mailer: QUALCOMM Windows Eudora Pro Version 4.2.2 Date: Mon, 04 Sep 2000 16:11:30 -0400 To: Mike Smith From: Mike Tancsa Subject: Re: Problems installing 4.1 on 3ware RAID 5200 & 6200 Cc: "FreeBSDHW" In-Reply-To: <200009042017.NAA05211@mass.osd.bsdi.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Sender: owner-freebsd-hardware@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org At 01:17 PM 9/4/2000 -0700, Mike Smith wrote: > > >Newfs doesn't use aligned buffers... > > > > Thanks for pointing this out. One thing that is not clear to me, how does > > this explain the very poor performance in bonnie ? If the poor bonnie > > results were being triggered by the alignment problem, would it not show > > equally poor results in RAID0 mode as well ? > >If the array was still initialising, bonnie's results would be pretty >terrible as well. Try creating an array and rebooting when it starts the >profiling pass, and see if it fares any better for you. Actually, I inadvertently did this without any noticeable results. ---Mike -------------------------------------------------------------------- Mike Tancsa, tel +1 519 651 3400 Network Administration, mike@sentex.net Sentex Communications www.sentex.net Cambridge, Ontario Canada www.sentex.net/mike To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message