Markus, what _exactly_ happened during the pvmove ? Would help to analyze any pvmove bug. Using LVM2 tools is a good idea. You'll have text metadata that way, would be able to hand-edit it removing the 10 LEs and vgcfgrestore the changed metadata back onto the PVs. On Thu, May 22, 2003 at 01:50:43AM +0200, Markus Schiltknecht wrote: > Hello everybody > > I just read that it's not recommended to run LVM on top of Softraid > devices. Why is that? Looks like a perfect combination to me. > > However. Recently two (?!?) disks of a RAID5 device got bad sectors. The > RAID array stopped immediately. Recreating the RAID with 'mkraid -R', I > could save most of its data. I did move it away with 'pvmove'. > > Then - only 10 PE remaining on the bad PV - I decided to use 'pvmove -i' > to remove those faulty PE's. That worked. But now my VG is in a silly > state: because 'pvmove' touched the bad sectors, the RAID shut down, > i.e. the whole PV (/dev/md/20) was no longer writeable nor readable. So > pvmove couldn't write to /dev/md/20, not even LVM metadata in an intact > area. > > Now /dev/md/20 is still registered as part of myVG. Aktivating it again > with 'mkraid -R /dev/md20' I can pvdisplay on it and all metadata seems > okay, but like before the 'pvmove -i'. Those 10 LE's are still on there. > > 'vgscan -v' outputs the following, somewhat silly message: > > vgscan -- removing "/etc/lvmtab" and "/etc/lvmtab.d" > vgscan -- creating empty "/etc/lvmtab" and "/etc/lvmtab.d" > vgscan -- reading all physical volumes (this may take a while...) > vgscan -- scanning for all active volume group(s) first > vgscan -- reading data of volume group "myVG" from physical volume(s) > vgscan -- only found 6561 of 6551 LEs for LV /dev/myVG/data (2) > vgscan -- ERROR "vg_read_with_pv_and_lv(): allocated LE of LV" can't get > data of volume group "myVG" from physical volume(s) > vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully created > vgscan -- WARNING: This program does not do a VGDA backup of your volume > group > > > That's exactly 10 LEs too much! > > I don't mind too much about the data in those 10 LEs. But I would like > to be able to activate myVG again! > > How can I tell it, to forget about /dev/md/20? Do I have to use LVM2 > tools? I've read through the mailing list, but didn't find the proper > tool / command. > > Thanks for your help > > Markus > > > > > _______________________________________________ > 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/ -- Regards, Heinz -- The LVM Guy -- *** Software bugs are stupid. Nevertheless it needs not so stupid people to solve them *** =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Heinz Mauelshagen Sistina Software Inc. Senior Consultant/Developer Am Sonnenhang 11 56242 Marienrachdorf Germany Mauelshagen@Sistina.com +49 2626 141200 FAX 924446 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- _______________________________________________ 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/
