From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Heinz J . Mauelshagen" Subject: Re: [linux-lvm] pvmove killed vg Message-ID: <20011217123030.E28720@sistina.com> References: <200112121228.fBCCSGC18255@mailgate5.cinetic.de> Mime-Version: 1.0 In-Reply-To: <200112121228.fBCCSGC18255@mailgate5.cinetic.de>; from gunther.kuhlmann@web.de on Wed, Dec 12, 2001 at 01:28:16PM +0100 Content-Transfer-Encoding: quoted-printable 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: Mon Dec 17 05:30:02 2001 List-Id: Content-Type: text/plain; charset="iso-8859-1" To: linux-lvm@sistina.com On Wed, Dec 12, 2001 at 01:28:16PM +0100, gunther.kuhlmann@web.de wrote: > linux-lvm@sistina.com schrieb am 12.12.01: >=20 > Heinz, >=20 > thank you for your answer! I've done the pvcreate -ff on all > pv. One came up with ...volume group "" where it > should have said volume group "vg0". So that fixed something, > I presume. >=20 > But how do I run the vgcfgrestore on _all_ PV? When I specify > one PV, it complains it can't restore part of active volume=20 > group. Looks like the kernel still knows about the VG. Check /proc/lvm/global if the VG is really still active. In that case you need to reboot to get rid of it. Regards, Heinz -- The LVM Guy -- > When I specify all PV's, it complains please enter > physical volume name. How do I do this? Does this work with > lvm 1.0.1?=20 >=20 > Commands like vgdisplay complain the VG does not exist. >=20 > As to your second suggestion: I have vg0.conf and vg0..old > in /etc/lvmconf. I assume you mean the first? >=20 > Thanks for your input! >=20 > Regards, >=20 > Gunther >=20 > > you need to run vgcfgrestore on *all* PVs which where in your=20 > vg0 *after* > > running "pvcreate -ff" on them. YOu can find out which these=20 > where by > > "vgcfgrestore -ll -n vg0 -f=20 > /etc/lvmconf/WhateverYourRecentBackupFileIs". > >=20 > > If that doesn't work a hack to activate it anyway without=20 > running vgscan is > > to copy /etc/lvmconf/WhateverYourRecentBackupFileIs (I assume > > /etc/lvmconf/vg0.conf.cd in your case) to /etc/lvmtab.d/vg0, > > "echo -en 'vg0\0vg1\0' > /etc/lvmtab" and "vgchange -ay". > > Create a dummy LV with 1 PE afterwards and your=20 > > metadata on all PVs of the VG should be ok again. > >=20 > > Remember to back /etc/lvmconf/ regularly when you change your=20 > LVM configuration! > >=20 > > Regards, > > Heinz -- The LVM Guy -- > >=20 > >=20 > > We recommend to upgrade to LVM 1.0.1 because a couple of bugs=20 > (some related to > > pvmove) have been fixed. > > On Tue, Dec 11, 2001 at 10:34:24PM +0100,=20 > gunther.kuhlmann@web.de wrote: > > > Hi, > > >=20 > > > I've got a broken lvm vg as a result of an unsuccessful pvmove > > > command. My system is a SuSE 7.0 with kernel 2.4.4 and > > > lvm-0.9.1_beta7-10.=20 > > >=20 > > > The vg spans several partitions on one disks, one of which I=20 > > > wanted to evacuate. I used the pvmove command with chunks of=20 > > > 32 PE (=3D 1 GB); 10 GB total. The first 8 chunks worked okay, > > > but the 9th (pvmove -v /dev/hda8:256-287 /dev/hda10) fell over > > > with error code 23 while moving the fifth PE. So I checked=20 > using > > > pvdisplay that the four PE had indeed been moved. A further > > > attempt with pvmove -v /dev/hda8:260-287 /dev/hda10 fell over=20 > as > > > well, again error code 23. (That's error moving physical > > > extent(s)).=20 > > >=20 > > > I then rebooted the machine which killed the complete volume > > > group. Which in turn did not quite impress me. :-(( > > >=20 > > > During my attempts at recovering I think I did a vgscan, which > > > found the vg "vg1" on /dev/hdb, but not the vg "vg0" on=20 > /dev/hda. > > >=20 > > > I tried the following commands unsuccessfully: > > > - vgcfgrestore -v -n vg0: please enter physical volume name=20 > (the > > > synopsys of vgcfgrestore did not state it as a mandatory=20 > > > parameter) > > > - vgcfgrestore -v -n vg0 /dev/hda10: can't restore part of=20 > active > > > volume grout vg0 > > > - vgcfgrestore -v -n vg0 /dev/hda{6,7,8,10}: please enter=20 > physical > > > volume name > > > - vgchange -a n vg0: volume group vg0 does not exist > > > - vgchange -a y vg0: volume group vg0 does not exist > > >=20 > > > I still have the file /etc/lvmconf/vg0.conf.cd as well as the > > > devices /dev/vg0/lv0{0,1,2,3} and /dev/vg0/group. (And > > > /dev/vg1/..., but that is working.) > > >=20 > > > Any suggestions on how I can recover the data would be highly > > > appreciated. I found a reference to a program called > > > uuid_fixer/uuid_editor, but usage was discouraged. Do I have=20 > to=20 > > > try it > > > or is there a better way? Does upgrading to a newer version of=20 > lvm > > > help? Or do I have to update the kernel as well then? And I=20 > > > definately > > > do _not_ want to kill my other vg as well. > > >=20 > > > Regards, > > >=20 > > > Gunther > > >=20 > > >=20 > > >=20 > > >=20 > > >=20 > _______________________________________________________________________= _______ > > > Die sch=F6nsten Ski-Regionen der Alpen - jetzt bei Ferienklick.de > > > http://ferienklick.de/ski/?PP=3D2-5-100-105-38 > > >=20 > > >=20 > > > _______________________________________________ > > > linux-lvm mailing list > > > linux-lvm@sistina.com > > > http://lists.sistina.com/mailman/listinfo/linux-lvm > > > read the LVM HOW-TO at=20 > http://www.sistina.com/lvm/Pages/howto.html > >=20 > > *** Software bugs are stupid. > > Nevertheless it needs not so stupid people to solve them *** > >=20 > > _______________________________________________ > > linux-lvm mailing list > > linux-lvm@sistina.com > > http://lists.sistina.com/mailman/listinfo/linux-lvm > > read the LVM HOW-TO at=20 > http://www.sistina.com/lvm/Pages/howto.html=20 >=20 >=20 > ________________________________________________________________ > Keine verlorenen Lotto-Quittungen, keine vergessenen Gewinne mehr!=20 > Beim WEB.DE Lottoservice: http://tippen2.web.de/?x=3D13 >=20 >=20 >=20 > _______________________________________________ > linux-lvm mailing list > linux-lvm@sistina.com > http://lists.sistina.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html *** Software bugs are stupid. Nevertheless it needs not so stupid people to solve them *** =3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D= -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-= =3D-=3D- Heinz Mauelshagen Sistina Software Inc. Senior Consultant/Developer Am Sonnenhang 11 56242 Marienrachdorf Germany Mauelshagen@Sistina.com +49 2626 141200 FAX 924446 =3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D= -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-= =3D-=3D-