Re: [linux-lvm] trouble of reduce pv

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

You need to restore the metadata formerly stored on md10 to a valid device
using the LVM vgcfgrestore(8) command.
Then you can run vgscan and "vgchange -ay".

On Tue, Oct 30, 2001 at 03:45:29AM +0900, YouMizuki wrote:
> I've a LVM one physical volume "vg0" that created on 10 RAID devices.
> It worked still the day.
> But one day, I have problem about vgscan reports that it can't find my VG.
> 
> My VG structure was this.
> 
> | /dev/md1,md2,md3,md4,md5,md6,md7,md8,md9,md10 => vg0
> 
> But md10 was broken.
> I need to restruct VG like this.
> 
> | /dev/md1,md2,md3,md4,md5,md6,md7,md8,md9 => vg0
> 
> But vgscan is can't find VG
> 
> |vgscan
> |vgscan -- reading all physical volumes (this may take a while...)
> |vgscan -- "/etc/lvmtab" and "/etc/lvmtab.d" successfully created
> |vgscan -- WARNING: This program does not do a VGDA backup of your volume group
> 
> 
> I tried uuid_fixer. but I get only error.
> 
> |uuid_fixer  /dev/md1 /dev/md2 /dev/md3 /dev/md4 /dev/md5 /dev/md6 /dev/md7 /dev/md8 /dev/md9 
> |Error: number of PVs passed in does not match number of PVs in /dev/md2's VG
> |       9 PVs were passed in and 10 were expected.
> 
> I tried pvmove...
> 
> |pvmove --force -v /dev/md9 /dev/md10
> |pvmove -- checking name of source physical volume "/dev/md9"
> |pvmove -- locking logical volume manager
> |pvmove -- reading data of source physical volume from "/dev/md9"
> |pvmove -- checking volume group existence
> |pvmove -- ERROR: can't move physical extents: volume group vg0 doesn't exist 
> 
> How do I carry out the restructuring of it and can I reconstruct it?
> 
> 
> 
> 
> _______________________________________________
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> linux-lvm@sistina.com
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> read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html

-- 

Regards,
Heinz    -- The LVM Guy --

*** Software bugs are stupid.
    Nevertheless it needs not so stupid people to solve them ***

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Heinz Mauelshagen                                 Sistina Software Inc.
Senior Consultant/Developer                       Am Sonnenhang 11
                                                  56242 Marienrachdorf
                                                  Germany
Mauelshagen@Sistina.com                           +49 2626 141200
                                                       FAX 924446
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