From owner-freebsd-questions Mon Jul 22 8: 6: 4 2002 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 3AF0E37B400 for ; Mon, 22 Jul 2002 08:06:02 -0700 (PDT) Received: from mail6.nc.rr.com (fe6.southeast.rr.com [24.93.67.53]) by mx1.FreeBSD.org (Postfix) with ESMTP id 546A043E31 for ; Mon, 22 Jul 2002 08:06:01 -0700 (PDT) (envelope-from bts@fake.com) Received: from this.is.fake.com ([66.26.254.93]) by mail6.nc.rr.com with Microsoft SMTPSVC(5.5.1877.757.75); Mon, 22 Jul 2002 09:17:15 -0400 Received: by this.is.fake.com (Postfix, from userid 111) id 3C8A8BB34; Mon, 22 Jul 2002 09:16:48 -0400 (EDT) Content-Type: text/plain; charset="iso-8859-1" From: "Brian T. Schellenberger" To: Jens Rehsack , Philip Hallstrom Subject: Re: If a disk is mounted read only is it possible to corrupt it? Date: Mon, 22 Jul 2002 09:16:48 -0400 User-Agent: KMail/1.4.2 Cc: freebsd-questions@FreeBSD.ORG References: <20020719132123.F60588-100000@cypress.adhesivemedia.com> <3D3BDD27.8152AA0B@liwing.de> In-Reply-To: <3D3BDD27.8152AA0B@liwing.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Message-Id: <200207220916.48028.bts@babbleon.org> Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Monday 22 July 2002 06:23 am, Jens Rehsack wrote: | Philip Hallstrom wrote: | > Hi all - | > This seems like an obvious answer, but I didn't see anything in | > the man pages or the FQ so... | > | > If I mount *all* of my partitions as read only (ignoring the problems of | > needing to write log files, etc. for now) and then cut the power to the | > server, is there any chance of corrupting the disk? It seems that | > FreeBSD wouldn't do it, but would the disk itself do it? | | That depends on the disk you're using. If you have problem with your | power supply, you should better think 'bout an uninterruptable power | supply. Unless there is a power surge or physical trauma, a disk most certainly should not be capable of "self-corrupting" unless a write has been issued, and if they are mounted r/o then FreeBSD will never issue a write. -- Brian, the man from Babble-On . . . . bts@babbleon.org (personal) http://www.babbleon.org http://www.eff.org http://www.programming-freedom.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message