From owner-freebsd-fs@FreeBSD.ORG Fri Jan 20 07:01:11 2006 Return-Path: X-Original-To: freebsd-fs@freebsd.org Delivered-To: freebsd-fs@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id D1DB016A41F for ; Fri, 20 Jan 2006 07:01:11 +0000 (GMT) (envelope-from non_secure@yahoo.com) Received: from web50908.mail.yahoo.com (web50908.mail.yahoo.com [206.190.38.128]) by mx1.FreeBSD.org (Postfix) with SMTP id 4C0B743D48 for ; Fri, 20 Jan 2006 07:01:11 +0000 (GMT) (envelope-from non_secure@yahoo.com) Received: (qmail 80235 invoked by uid 60001); 20 Jan 2006 07:01:10 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=coJeLgagIgSdpxBhzLv5r6a5df8/5LBMDyiIMBfaUs7K5v1sKdSbdDlxe3kPHvq2+gkcn+0Itk89H938AZmL259UEYUGhrclilsuPpZ3zNgwT4h8XiDVl6g/QYw5NpdDS0IZ+Bh2jebRU9njS3LeIwvhBvnD2eeUwiMfE+4E9S0= ; Message-ID: <20060120070110.80233.qmail@web50908.mail.yahoo.com> Received: from [24.94.196.84] by web50908.mail.yahoo.com via HTTP; Thu, 19 Jan 2006 23:01:10 PST Date: Thu, 19 Jan 2006 23:01:10 -0800 (PST) From: Joe Schmoe To: freebsd-fs@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Subject: can snapshots become corrupted ? Is fsck'ing /dev/md0 sensible ? X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 20 Jan 2006 07:01:11 -0000 I want to make this brief for you all ... Let's say I have a running filesystem, and the system crashes, and (for whatever reason) I mount and run the filesystem in an unclean state. While in this unclean, running state, I create a snapshot on it. Now let's say I unmount the filesystem and fsck it for real. It gets marked clean. Is the snapshot that resides on that filesystem still dirty ? If so, is it expected that use of the clean FS with the dirty snapshot enabled would cause system instability (hard lock of system). If so, is it sensible for me to mount the snapshot on md0 and fsck /dev/md0 ? thakns. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com