Re: [linux-lvm] pvmove problem

["Heinz J . Mauelshagen" <mauelshagen@sistina.com>]

On Mon, Feb 10, 2003 at 06:28:31PM +0000, B. Dobalina wrote:
> Luckily I have some backups of all but one LV (which is just too big to 
> backup) on vol2. But it would be nice to recover that volume.
> 
> As far as syslog messages, I did not see anything out of the ordinary before 
> the pvmove. Now of course I get the error message produced by vgscan which I 
> pasted in the first message.
> 
> Not quite sure what you mean about "using vol2's content". I cannot get LVM 
> to recognize vol2, so of course it will not activate it. So I cannot mount 
> any of the volumes in vol2.

Got it.

> 
> It is only complaining about /dev/vol2/software volume. If there was someway 
> I could delete this volume without having to have vol2 activated, that might 
> solve the problem--unless other volumes' metadata is corrupted as well. I 
> seem to remember reading about LVM2's ability to do a partial activation 
> (missing 1 or more PVs from a VG). Would it be worthwhile to try and mount 
> vol2 under LVM2 with hdh3 removed?

That's probably the way to go.
LVM2 is LVM1 metadata compatible.
Run "vgscan ; vgchange -P -ay" once you've installed it.
Please remember that LVM2 doesn't have pvmove so far (we are working on it).

> 
> Thanks,
> Skip
> 
> 
> >From: "Heinz J . Mauelshagen" <mauelshagen@sistina.com>
> >Reply-To: linux-lvm@sistina.com
> >To: linux-lvm@sistina.com
> >Subject: Re: [linux-lvm] pvmove problem
> >Date: Mon, 10 Feb 2003 14:53:49 +0100
> >
> >On Fri, Feb 07, 2003 at 05:50:21PM +0000, B. Dobalina wrote:
> > > Its linux 2.4.19 (with the sgi xfs patch) and lvm 1.0.6. I have two 
> >volumes,
> > > the other volume (vol1) is unaffected. All lvm operations seem to be 
> >working
> > > on vol1. For vol2 (the one that I executed a pvmove on), I cannot get 
> >lvm to
> > > recognize it so I cannot perform any lvm operations.
> >
> >You've got the actual LVM software. Let's try to approach the problem
> >a bit more...
> >
> >Have there been any syslog messages spotting some light on this ?
> >Are you still able to use vol2's content ?
> >
> >Before changing anything, don't forget to keep recent backups!
> >
> >Regards,
> >Heinz    -- The LVM Guy --
> >
> > >
> > > -skip
> > >
> > >
> > >
> > >
> > > Which LVM and Linux  version is this ?
> > > Does everything else irt LVM with the exception of pvmove ru fine
> > > (i.e. creating/removing LVs etc.) ?
> > >
> > > Regards,
> > > Heinz    -- The LVM Guy --
> > >
> > >
> > > On Thu, Feb 06, 2003 at 11:26:44PM +0000, B. Dobalina wrote:
> > > >I am trying to remove an old harddrive from one of my volumes using:
> > > >   pvmove -v /dev/hdh3
> > > >It was chugging along just find until about half way through when it 
> >froze.
> > > >Linux was not "frozen", but I do not think it would allow any io to the
> > > >block devices (logins, ls's, etc would stall). I waited about an hour, 
> >at
> > > >which point it was still stuck on the same extent, and had no other 
> >option
> > > >but to hard reboot. When the system was booted, the volume to which 
> >hdh3
> > > >belonged, would no longer mount:
> > > >
> > > >$ vgscan
> > > >vgscan -- reading all physical volumes (this may take a while...)
> > > >vgscan -- found active volume group "vol1"
> > > >vgscan -- only found 2523 of 768 LEs for LV /dev/vol2/software (1)
> > > >vgscan -- ERROR "vg_read_with_pv_and_lv(): allocated LE of LV" can't 
> >get
> > > >data of volume group "vol2" 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
> > > >groups
> > > >
> > > >
> > > >Looks like some lvm metadata has been corrupted. So I ran vgcfgrestore 
> >on
> > > >/dev/hdh3: same result. Then I ran it on all the PVs in vol2: same 
> >result.
> > > >Does anybody have a solution to get this volume mounted? There is a 
> >bunch
> > > >of data on vol2, but not all that much in /dev/hdh3, so a partial 
> >restore
> > > >would be ok.
> > > >
> > > >Thanks,
> > > >Skip
> > > >
> > > >
> > > >_________________________________________________________________
> > > >Help STOP SPAM with the new MSN 8 and get 2 months FREE*
> > > >http://join.msn.com/?page=features/junkmail
> > > >
> > > >
> > > >_______________________________________________
> > > >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/
> > >
> >
> >*** 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/
> 
> 
> _________________________________________________________________
> The new MSN 8: advanced junk mail protection and 2 months FREE*  
> http://join.msn.com/?page=features/junkmail
> 
> 
> _______________________________________________
> 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
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-