From owner-freebsd-chat@FreeBSD.ORG Sat Feb 5 17:31:20 2005 Return-Path: Delivered-To: freebsd-chat@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 682D716A4CE for ; Sat, 5 Feb 2005 17:31:20 +0000 (GMT) Received: from cyrus.watson.org (cyrus.watson.org [204.156.12.53]) by mx1.FreeBSD.org (Postfix) with ESMTP id 227B743D49 for ; Sat, 5 Feb 2005 17:31:20 +0000 (GMT) (envelope-from robert@fledge.watson.org) Received: from fledge.watson.org (fledge.watson.org [204.156.12.50]) by cyrus.watson.org (Postfix) with SMTP id A7EC546B8D; Sat, 5 Feb 2005 12:31:19 -0500 (EST) Date: Sat, 5 Feb 2005 17:30:26 +0000 (GMT) From: Robert Watson X-Sender: robert@fledge.watson.org To: Steve Kargl In-Reply-To: <20050204192511.GA84359@troutmask.apl.washington.edu> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: freebsd-chat@freebsd.org Subject: Re: the value of a journal filesystem? X-BeenThere: freebsd-chat@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Non technical items related to the community List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 05 Feb 2005 17:31:20 -0000 On Fri, 4 Feb 2005, Steve Kargl wrote: > I'm not sure if this is a ext2fs, ext3fs, or reiserfs, but the 2nd > paragraph is somewhat ominious. The notice does statement whether the > damaged filesystems are on other disks or on disks in other machines > (ie. nfs mounted). Journalling, as with Soft Updates, relies on generally correct operation of the media (i.e., changes are written or not, etc), and is intended to protect only against "fail stop" failure modes. Handling media failure is generally a task for RAID arrays, which are intended to mask corruption by coercing corruption to "fail stop" on the media. So the interesting question here would be: did their RAID not protect them? Or did they not have RAID? Robert N M Watson > > -- > steve > > ----- Forwarded message from do-not-reply@ecoscentric.com ----- > > From: do-not-reply@ecoscentric.com > X-Accept-Language: en-gb, en, en-us > To: sourceware users > Subject: Outage of gcc.gnu.org / sourceware.org / sources.redhat.com > Date: Fri, 4 Feb 2005 05:16:07 +0000 (GMT) > X-Spam-Checker-Version: SpamAssassin 3.0.1 (2004-10-22) on > troutmask.apl.washington.edu > X-Spam-Level: > X-Spam-Status: No, score=-0.4 required=3.0 tests=BAYES_05,NO_REAL_NAME > autolearn=no version=3.0.1 > > sourceware.org, also known as sources.redhat.com, also known as > gcc.gnu.org, also known as ecos.sourceware.org is down at the moment due to > a failed disk. > > Unfortunately the failure caused significant filesystem corruption, even > though that shouldn't have happened. As a result, sourceware will be down > for some time longer. The sourceware overseers and Red Hat sysadmins are > working hard to bring it back up. The disk has been replaced and the > filesystems are about to be restored from backups, although we are still > trying to see if there's any way to recover the filesystem data. > > We will send another notice when it comes back, so sit tight and watch this > space. If there are any questions, e-mail > > Yours, > > The sourceware overseers > > ----- End forwarded message ----- > > -- > Steve > _______________________________________________ > freebsd-chat@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-chat > To unsubscribe, send any mail to "freebsd-chat-unsubscribe@freebsd.org" >