From owner-freebsd-questions@FreeBSD.ORG Wed Mar 24 07:42:01 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 C8DB816A4D0 for ; Wed, 24 Mar 2004 07:42:01 -0800 (PST) Received: from watcher.puryear-it.com (unknown [69.2.39.107]) by mx1.FreeBSD.org (Postfix) with ESMTP id 976E143D49 for ; Wed, 24 Mar 2004 07:42:01 -0800 (PST) (envelope-from dap99@i-55.com) Received: from localhost (unknown [127.0.0.1]) by watcher.puryear-it.com (Postfix) with ESMTP id D13D634D1F for ; Wed, 24 Mar 2004 09:32:49 -0600 (CST) Received: from watcher.puryear-it.com ([127.0.0.1]) by localhost (watcher.puryear-it.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 59175-07 for ; Wed, 24 Mar 2004 09:32:49 -0600 (CST) Received: from yourqqh4336axf (localhost [127.0.0.1]) by watcher.puryear-it.com (Postfix) with SMTP id D033C34D1E for ; Wed, 24 Mar 2004 09:32:48 -0600 (CST) Message-ID: <013a01c411b6$68742a20$4b0a000a@yourqqh4336axf> From: "adp" To: Date: Wed, 24 Mar 2004 09:40:49 -0600 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 6.00.2720.3000 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2727.1300 X-Virus-Scanned: by amavisd-new Subject: FreeBSD hdparm? 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, 24 Mar 2004 15:42:01 -0000 I know that under Linux I can modify how the OS uses IDE drives using hdparm. Is there an equivilent for FreeBSD? 'man tuning' seems to indicate that there isn't anything and that I only need to worry about whether I need to use softupdates. (It also mentions sysctl values such as vfs.vmiodirenable, which seems enabled in 4.9 by default.) I can see a need to tweak the parameters of how FreeBSD uses my disks unless it already knows when to enable certain features, for example 32-bit IO.