From owner-freebsd-questions Fri Dec 17 11:18:26 1999 Delivered-To: freebsd-questions@freebsd.org Received: from mail.rdc1.ab.home.com (ha1.rdc1.ab.wave.home.com [24.64.2.50]) by hub.freebsd.org (Postfix) with ESMTP id 074B91576B for ; Fri, 17 Dec 1999 11:18:24 -0800 (PST) (envelope-from rdh@best.com) Received: from best.com ([24.66.216.246]) by mail.rdc1.ab.home.com (InterMail v4.01.01.07 201-229-111-110) with ESMTP id <19991217191823.DAIA27330.mail.rdc1.ab.home.com@best.com> for ; Fri, 17 Dec 1999 11:18:23 -0800 Received: (from rdh@localhost) by best.com (8.9.3/8.8.5) id MAA77720; Fri, 17 Dec 1999 12:18:22 -0700 (MST) To: freebsd-questions@freebsd.org Subject: when is it safe to use the 0xa0ffa0ff disk flags? References: <01ae01bf47e7$08293900$d2630a0a@megared.net.mx> From: Dale Hagglund Date: 17 Dec 1999 12:18:22 -0700 In-Reply-To: "Alejandro Ramirez"'s message of "Thu, 16 Dec 1999 11:00:18 -0600" Message-ID: <867lidxtoh.fsf_-_@ponoka.battleriver.com> Lines: 15 User-Agent: Gnus/5.070098 (Pterodactyl Gnus v0.98) Emacs/20.3 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG "Alejandro Ramirez" writes: > Are you refering to the "0xa0ffa0ff" flags???, this flags are for > improve performance by enabling DMA use, enable the multi-sector I/O > and the 32BIT I/O modes to IDE Disks. How does one know if it's safe to apply those those particular flags to one's system? If they'll speed up disk activity, I'm all in favour of them, but I don't want to trash my disks by mistake. I'm using 3.2-RELEASE with a kernel built to support ipfw and the bpf stuff. My disks are Quantum Fireballs, a ST2.1A and KA9.1 respectively. Dale. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message