From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kapetanakis Giannis Subject: Re: large filesystem corruptions Date: Tue, 16 Mar 2010 12:02:00 +0200 Message-ID: <4B9F5718.7030506@edu.physics.uoc.gr> References: <4B9A9D81.3000009@edu.physics.uoc.gr> <4B9AA5AC.9090005@redhat.com> <4B9ADC61.7080007@edu.physics.uoc.gr> <4B9AE28C.8030905@edu.physics.uoc.gr> <4877c76c1003121758w49cdeccas6865e65c9e985770@mail.gmail.com> <4B9B8DFC.30907@redhat.com> <4B9B90DB.4020809@edu.physics.uoc.gr> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4B9B90DB.4020809@edu.physics.uoc.gr> Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org Cc: Ric Wheeler , davidsen@tmr.com List-Id: linux-raid.ids On 13/03/10 15:19, Kapetanakis Giannis wrote: > I will try Fedora 12/64bit on Monday when I have physical access. > > Right now all tests have failed. > OS in Centos 5.4 x86 PAE so I opened a ticket both in Centos and Redhat > bugzilla. > I don't have any contract with redhat but I hope they will give a try on > this. > > https://bugzilla.redhat.com/show_bug.cgi?id=573185 > http://bugs.centos.org/view.php?id=4239 > > My feelings are that it has to do with the software raid layer and not > the filesystem (ext4, xfs, gfs all died). > The filesystem seems to not get the appropriate physical/logical > quandaries from the raid layer. > > Unless the x86 kernel is not capable of addressing > large filesystems as it is documented (16TB as you said). I thought I should report here as well. I've installed Centos 5.4 x64 and all going well so far. No corruptions at all. My setup is as before sdb (hard raid5) | |------> md0 (soft raid0)----> LVM ----> ext4 | sdc (hard raid5) The only strange thing I've noticed is that pvcreate is messing with the gpt label on md0. Don't know of that is normal. https://bugzilla.redhat.com/show_bug.cgi?id=573185#c4 #fdisk -l /dev/md0 WARNING: GPT (GUID Partition Table) detected on '/dev/md0'! The util fdisk doesn't support GPT. Use GNU Parted. Disk /dev/md0: 14978.6 GB, 14978676948992 bytes 2 heads, 4 sectors/track, -638063744 cylinders Units = cylinders of 8 * 512 = 4096 bytes Disk /dev/md0 doesn't contain a valid partition table # parted /dev/md0 GNU Parted 1.8.1 Using /dev/md0 Welcome to GNU Parted! Type 'help' to view a list of commands. (parted) p Error: Unable to open /dev/md0 - unrecognised disk label. thanks all Giannis