From owner-freebsd-hackers Thu Jan 2 1:27:19 2003 Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id BD89E37B401 for ; Thu, 2 Jan 2003 01:27:18 -0800 (PST) Received: from priv-edtnes04.telusplanet.net (outbound02.telus.net [199.185.220.221]) by mx1.FreeBSD.org (Postfix) with ESMTP id E6D8943EC2 for ; Thu, 2 Jan 2003 01:27:17 -0800 (PST) (envelope-from sh@bel.bc.ca) Received: from dbs ([216.232.223.49]) by priv-edtnes04.telusplanet.net (InterMail vM.5.01.05.17 201-253-122-126-117-20021021) with SMTP id <20030102092712.ZJSA27316.priv-edtnes04.telusplanet.net@dbs> for ; Thu, 2 Jan 2003 02:27:12 -0700 Message-ID: <000501c2b241$21927560$31dfe8d8@slugabed.org> From: "Sean Hamilton" To: Subject: ATA RAID performance Date: Thu, 2 Jan 2003 01:27:12 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Greetings, I have tried using both atacontrol and ccdconfig to create stripes and mirrors of various sizes, and have found that in all cases, read performance *decreased*. Is this typical? I have a Promise controller in another computer running Windows which sees a considerable performance increase while striping, but in the FreeBSD machine, no controller is present. thanks, sh To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message