On Thu, Sep 19, 2002 at 05:01:46PM +0200, Robin Edgar - Tripany wrote: > Due to the dd the 2 disks should be identical - how do i get the VG to > activate the PV of choice? I can't figure out how to deactivate hdb1 and > activate hde1 or how vgchange decides it wants to use hdb1 instead of hde1! Zero the first block of hdb1 (dd if=/dev/zero of=/dev/hdb1 bs=1k count=1) or create a new physical volume on /dev/hdb1 (pvcreate -ff /dev/hdb1). Regards, Heinz -- The LVM Guy -- > > Robin > > > On Thu, Sep 19, 2002 at 12:45:47PM +0200, Robin Edgar - Tripany wrote: > > > Fair enough, but I would very much like to access the files and > determine > > > later what has errors and what doesn't - at the moment, I can only do > this > > > with the docu lv and none of the others... > > > > > > You were right, I did manage to get a whole load of lost+found entries > using > > > fsck after the mount. The docu entry was on the physical extent though, > and > > > seems to be working fine. > > > Anyway I thought I'd upgrade LVM to 1.0.5 from 1.0.1 and refit the disks > to > > > the 'old' configuration (4 disks + 1 for backup), to do a pvmove. > > > Now when I do a pvscan, it finds all the disks, but also the disk I did > the > > > dd to, as part of the vg. So I de-activated the vg, and tried to reduce > the > > > vg /dev/hdb1, hoiwever this is not working: > > > > > > # vgreduce tripserv_vol /dev/hdb1 > > > vgreduce -- ERROR: can't reduce volume group "tripserv_vol" by used > physical > > > volume "/dev/hdb1" > > > > Well, LVM still has allocated extents on that PV. You can just remove > > empty PVs from a VG. > > > > > > > > # pvscan -v > > > pvscan -- reading all physical volumes (this may take a while...) > > > pvscan -- walking through all physical volumes found > > > pvscan -- ACTIVE PV "/dev/hdg1" of VG "tripserv_vol" [38.16 GB / 7.93 > GB > > > free] > > > pvscan -- ACTIVE PV "/dev/hdh1" of VG "tripserv_vol" [38.16 GB / 8.01 > GB > > > free] > > > pvscan -- inactive PV "/dev/hde1" of VG "tripserv_vol" [55.91 GB / 0 > free] > > > pvscan -- ACTIVE PV "/dev/hdf1" of VG "tripserv_vol" [55.91 GB / 3.37 > GB > > > free] > > > pvscan -- ACTIVE PV "/dev/hdb1" of VG "tripserv_vol" [55.91 GB / 0 > free] > > > pvscan -- total: 5 [244.08 GB] / in use: 5 [244.08 GB] / in no VG: 0 [0] > > > > > > If i vgchange -a n it will deactivate them all, but then I get: > > > # vgreduce tripserv_vol /dev/hdb1 > > > vgreduce -- ERROR: volume group "tripserv_vol" is not active > > > > Doesn't change the situation, because the PV still has extents allocated. > > A PV must be empty and the VG active in order to remove it from the VG. > > > > > > > > After I restore the vg to it's 'old' configuration, I want to empty > > > /dev/hdb1 and add it to the volume group. Then doing a pvmove -i > /dev/hde1 > > > should move all the data it can find there to the rest of the vg > shouldn't > > > it? > > > > Yes, presuming that you've got enought space to fit all extents allocated > > to /dev/hde1. > > > > > > > > Thank you for all your help so far, > > > > You're welcome. > > > > Regards, > > Heinz -- The LVM Guy -- > > > > > Robin Edgar > > > > > > ----- Original Message ----- > > > From: "Heinz J . Mauelshagen" <mauelshagen@sistina.com> > > > To: <linux-lvm@sistina.com> > > > Sent: Thursday, September 19, 2002 12:04 PM > > > Subject: Re: [linux-lvm] Help! unable to mount lv's - can't see why! > > > > > > > > > > On Wed, Sep 18, 2002 at 04:42:54PM +0200, Robin Edgar - Tripany wrote: > > > > > Doing the lvdisplay -v shows that pv /dev/hde1 had bits of all of > the > > > lv's > > > > > on it (including the docu lv, which I *can* mount). > > > > > > > > Then it is most likely, that all filesystems will have errors. > > > > > > > > Regards, > > > > Heinz -- The LVM Guy -- > > > > > > > > > > > > > > > > > > ----- Original Message ----- > > > > > From: "Heinz J . Mauelshagen" <mauelshagen@sistina.com> > > > > > To: <linux-lvm@sistina.com> > > > > > Sent: Wednesday, September 18, 2002 3:59 PM > > > > > Subject: Re: [linux-lvm] Help! unable to mount lv's - can't see why! > > > > > > > > > > > > > > > > On Wed, Sep 18, 2002 at 03:56:36PM +0200, Robin Edgar - Tripany > wrote: > > > > > > > I've discovered that there is a problem with /all/ the > superblocks > > > > > except for those of the /docu lv (see below). It does lead me to > another > > > > > question though - only one of the HDs crashed: is it possible that > LVM > > > wrote > > > > > all the superblocks on 1 HD?! If so this seems like a pretty serious > bug > > > in > > > > <SNIP> > > > > > > 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 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > > > 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 *** > > > > > > > > > > > > _______________________________________________ > > > > 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 > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > 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 *** > > > > _______________________________________________ > > 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 > > > > > > > > _______________________________________________ > 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 *** =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- 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://www.sistina.com/lvm/Pages/howto.html
