From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Heinz J . Mauelshagen" Subject: Re: [linux-lvm] LVM and resize Message-ID: <20031010130840.E25676@sistina.com> References: <002701c38c15$b72cbc30$0201a8c0@ray1> <20031007155317.D25676@sistina.com> <000801c38cf6$4aed8770$0200000a@ray1> Mime-Version: 1.0 In-Reply-To: <000801c38cf6$4aed8770$0200000a@ray1>; from brad.p@frisurf.no on Tue, Oct 07, 2003 at 07:13:14PM +0200 Sender: linux-lvm-admin@sistina.com Errors-To: linux-lvm-admin@sistina.com Reply-To: linux-lvm@sistina.com List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: Date: Fri Oct 10 06:22:01 2003 List-Id: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-lvm@sistina.com On Tue, Oct 07, 2003 at 07:13:14PM +0200, Reidar Westvik wrote: > Hi Heinz, > > Thanks for your quick reply! :) > > I am still able to mount the filesystem, but after a while it goes into > read-only mode, witch is fine. However I cannot take backup of the volume > cause it's to big, but it's not "the end of the world" if the data gets > lost, but we would like to keep data. > > I've read about using pvmove -i and when i try to run it i get "command not > implemented yet". Is there a way around this ? You mean with LVM2 ? Not yet. Will probably be in 2.2. Regards, Heinz -- The LVM Guy -- > > Reidar > ----- Original Message ----- > From: "Heinz J . Mauelshagen" > To: > Sent: Tuesday, October 07, 2003 3:53 PM > Subject: Re: [linux-lvm] LVM and resize > > > > > > Looks like you are caught IRT to shrinking, because of the fsck errors. > > > > If you're still able to mount the filesystem, you definitely want to take > a backup > > first in order to preserve as much of your files as possible. > > > > Aftwards (presumably you can add another >=120g drive to your VG with > vgextend) you > > want to try moving the data off to that other disk using "pvmove -i ...", > then > > removing the failing one (vgreduce). > > > > Using device-mapper/LVM2, which enables you to remove the drive in > question > > (removing LVs allocated to that drive as well), doesn't help you here, > presumably > > you just have that one huge Logical Volume. > > > > Regards, > > Heinz -- The LVM Guy -- > > > > On Mon, Oct 06, 2003 at 04:25:39PM +0200, Reidar Westvik wrote: > > > Hi, > > > > > > I don't know if my question in something that Sistina supports, but i > need some pointers to make this work. > > > > > > We're running a Slackware 9.0 server with kernel 2.5.64 (gcc ver. 2.95.3 > 20010315) also on this server we have a LVM volume of 1TB spread over 120GB > IDE disks. Now, it seems like one of the harddrives has failed in some way. > Filesystem on the volume is EXT3. > > > > > > When i mount the volume syslog says: "kernel: EXT3-fs warning: mounting > fs with errors, running e3fschk is recommended" So i've unmounted the volume > and run e2fschk on the LVM volume. After a long wait (2 days in fact) the > server hangs, when its checking the part of the volume that is on hdf. The > box just dies, and only a powercycle will bring it back up again. The > syslogs displays the following info: > > > "kernel: hdf: dma_timer_expiry: dma status == 0x61" > > > "kernel: hdf: (__ide_dma_test_irq) called while not waiting"" > > > > > > These are the last events of syslog before it's starts to reboot. > > > > > > Now, after what i've read the way to deal with this issue without loss > of data is to shrink the volume with aprox. 120gb (there is enough free > space) and then exclude the defective drive from the logical volume and its > physical groups, and then add a healthy disk for so to increase the volume > back to its original size. > > > > > > However LVM resize tools will not allow resizing of a volume that has a > filsystem marked with errors. And if i try to force the resize the server > hangs. I have tryed to resize with both "e2fsadm" and "resize2fs" but they > both have problem resizing since it has errors. > > > > > > So this kinda puts me back to basics, is there a way for me to remove > this disk without loosing data on the volume ? > > > > > > All awnsers are very much apriciated! :) > > > > > > Best Regards > > > Reidar > > _______________________________________________ > > linux-lvm mailing list > > linux-lvm@sistina.com > > http://lists.sistina.com/mailman/listinfo/linux-lvm > > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ > > > > > > > > > > _______________________________________________ > linux-lvm mailing list > linux-lvm@sistina.com > http://lists.sistina.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Heinz Mauelshagen Sistina Software Inc. Senior Consultant/Developer Am Sonnenhang 11 56242 Marienrachdorf Germany Mauelshagen@Sistina.com +49 2626 141200 FAX 924446 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-