[linux-lvm] main drive fail
Heinz J. Mauelshagen
Mauelshagen at sistina.com
Thu May 17 15:44:23 UTC 2001
On Thu, May 17, 2001 at 03:35:50PM +0200, Dominique LARCHEY-WENDLING wrote:
> Thomas Inglis wrote:
> >
> > Thomas, Did you restore the lvm related entries in /etc ?
> > Well, using
> > vgcfgrestore -nlvmGroup /dev/hdb1 (thx Dominque)
> > says that /etc/lvmconf/lvmGroup.conf doesnt exists, backup not available.
>
> You are not supposed to loose these files .... aie ;-(
Correct :-(
Do you have a backup on tape or somewhere?
> As I understand, there is a copy of this info. on every phys. volume.
A lot of parts are redundantly stored on every physical volume.
*But* you need the PV structure *and* the PE mapping table (that's the one
which translates between LV and PV addresses) which is in
/etc/lvmconf/VGName.conf or deaper in the history (default depth 10) kept there.
> But it seems no utility exist for restoring this info. into
> /etc/lvmconf/...
It wouldn't help because the above unique information isn't on any of
the other physical volumes.
>
> What does pvscan give you ?
Likely all but the crahed one PV.
In case you have a recent backup of /etc/lvmconf/*, you can make use of
that to vgcfgrestore your PV and run vgscan.
>
> And I did not understand if you also want to recover the
> data in the volume group lvmGroup ? (it would be simpler if not ...)
>
> DL
>
> --
> Dominique Larchey
> LORIA, Nancy, France
> Tel. (Work) +33 (0) 3 83 59 20 13
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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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