[linux-lvm] Moving a PV to a new, larger, disk.
Heinz Mauelshagen
mauelshagen at redhat.com
Wed Jan 14 18:22:04 UTC 2004
On Wed, Jan 14, 2004 at 04:08:09PM +0100, Spam wrote:
>
>
> > On Tue, Jan 13, 2004 at 03:45:54PM +0100, Spam wrote:
> >>
> >> Hello,
> >>
> >> Is it possible to use dd/dd_rescue to simply copy a PV to a new disk
> >> that is slightly (16MiB)larger?
> >>
> >> The old pv is on /dev/hdb1 and the new disk is /dev/hdc and is
> >> unpartitioned so far. How would I proceed to make this work?
>
> > Following procedure to make it happen:
>
> > o partition the new disk with 1 partition of _exactly_
> > the same size (in units of sectors) as /dev/hdb1
>
> > o dd(_rescue) content over
> > o remove the old disk
> > o vgscan
> > o vgchange -ay
>
> Great! Thank you. Now I know who to blame if things does not work ;)
Right, unless you didn't follow the steps exactly _and_
removed all mistakes ;-)
>
> //Anders
>
> >>
> >> This might seem odd to do as I could perhaps use pvmove, but pvmove
> >> requires the whole vg to be present in the system, right?
> >>
> >> //Anders
> >>
>
>
>
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> 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 ***
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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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