[linux-lvm] How to fix missmatch between VG-size and LV-size?

[Ray Morris]

  Yes i sounds like it's time to fsck, then if needed 
resize2fs to the proper size.  It would be best to 
mount it read only only and copy whatever data copies
to be safe.  4TB is a lot of data, but then again it's
only $130 worth of consumer drives to back it up.
-- 
Ray Morris
support at bettercgi.com

Strongbox - The next generation in site security:
http://www.bettercgi.com/strongbox/

Throttlebox - Intelligent Bandwidth Control
http://www.bettercgi.com/throttlebox/

Strongbox / Throttlebox affiliate program:
http://www.bettercgi.com/affiliates/user/register.php




On Wed, 30 Mar 2011 02:27:49 +0200
"Fredrik Skog" <fredrik.skog at rodang.se> wrote:

> 
> ----- Original Message ----- 
> From: "Stuart D. Gathman" <stuart at bmsi.com>
> To: "LVM general discussion and development" <linux-lvm at redhat.com>
> Sent: Wednesday, March 30, 2011 12:14 AM
> Subject: Re: [linux-lvm] How to fix missmatch between VG-size and
> LV-size?
> 
> >SNIP>
> 
> >> I can run LVM commands fine now after the reboot and the output
> >> from pvdisplay and lvdisplay is like i posted earlier.
> >> How can i revert this in a safe way? I was thinking of just
> >> removing the PV and do a vgcfgrestore to "before" the lvextend.
> >> But since lvdisplay says the volume is 4.16TiB and pvdisplay says
> >> 5.59TiB something is wrong? Or am I missing something?
> 
> >SNIP>
> 
> >> Is it better to do a e2fsck now?
> 
> > That is probably the only way to salvage what is left of your
> > filesystem, but don't do it until we find out whether the LV is the
> > old or the new size.
> > I suspect the LV will be the new size, but the filesystem may still
> > show the old size.  Since the resize2fs should be just adding free
> > space, there may not be any data loss.  e2fsck would fix the (now
> > corrupt) free space, and you can extend again.
> 
> I just added all the segments of the LV from an old backed up config
> file. It adds up to 3,856TB, so I guess  you were right and i assumed
> wrong. The old LV was about 3,8TB and the new is about 4,16TB or
> about 400GB bigger than before as expected by lvextend -L+400G.
> 
> Also it tells me I have 1,43TiB free wich is 5,59TiB - 4,16TiB. It
> also looks right.
> 
> maybe I should try an e2fsck now?
> 
> again, thanks for your time
> 
> /Fredrik Skog
> 
> >
> > --
> >        Stuart D. Gathman <stuart at bmsi.com>
> >     Business Management Systems Inc.  Phone: 703 591-0911 Fax: 703 
> > 591-6154
> > "Confutatis maledictis, flammis acribus addictis" - background song
> > for a Microsoft sponsored "Where do you want to go from here?"
> > commercial.
> >
> > _______________________________________________
> > linux-lvm mailing list
> > linux-lvm at redhat.com
> > https://www.redhat.com/mailman/listinfo/linux-lvm
> > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ 
> 
> _______________________________________________
> linux-lvm mailing list
> linux-lvm at redhat.com
> https://www.redhat.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>