[linux-lvm] vgchange -a y /dev/System fails
Heinz J . Mauelshagen
mauelshagen at sistina.com
Thu Jan 31 05:19:02 UTC 2002
On Wed, Jan 30, 2002 at 07:04:17PM -0800, Marc MERLIN wrote:
> On Wed, Jan 30, 2002 at 01:12:05PM +0100, Heinz J . Mauelshagen wrote:
> > > Unfortunately, that doesn't work because I had a cron job that was creating
> > > daily snapshots (in an attempt to emulate ONTAP's snapshot's feature), so my
> > > 10 backups contain snapshot LVs
> >
> > Well, in this case you might still have a consistent backup with snapshots
> > which you can use like mentioned above.
>
> I tried a few and none seemed to work, but I restored one from before I made
> snapshots and recovered from this.
> I now have my system back (/usr, /var)
>
> As for /home, as soon as I tried to access it (e2fsck, tune2fs -O
> ^has_journal, or whatever), the process hung in "wait_o" according to ps.
>
> I tried to restore the VG to its state before I added snapshots, but that
> only made it go away :-(
>
> mechastreisand:/etc/lvmconf# vgchange -a n /dev/BigAssLVMRaid
<SNIP>
> -> My BigAssLVMRaid VG is gone :-(
>
> Did I just lose my data?
If you really tried all your metadata backups unsuccessfully, I am afraid so :-(
Some users reported snapshot problems with the recent 2.4.x kernels.
They are not 100% reliable due to VM issues being sorted out by the
kernel community hopefully which will hopefully be integrated in 2.4.18.
>
> Marc
> --
> Microsoft is to operating systems & security ....
> .... what McDonalds is to gourmet cooking
>
> Home page: http://marc.merlins.org/ | Finger marc_f at merlins.org for PGP key
>
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--
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 at Sistina.com +49 2626 141200
FAX 924446
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