[linux-lvm] Problem extending a LV

[Austin Gonyou]

Are there plans to have this functionality? As in, I have a 2 disk striped
set, and now I'm running out of space, so I add a third pv, and now I want
to restripe and extend onto the third disk? I ask because Veritas has this
ability, and it could be a deal breaker for some choosing which to use.

-- 
Austin Gonyou
Systems Architect, CCNA
Coremetrics, Inc.
Phone: 512-796-9023
email: austin at coremetrics.com

On Tue, 29 May 2001, AJ Lewis wrote:

> On Tue, May 29, 2001 at 11:33:54AM +0200, Carsten Balzer wrote:
> > If I try to extend the LV with:
> > lvextend -L+78164M /dev/NVolGroup/nVol
> > then I get:
> > lvextend -- rounding size 240119808 KB to stripe boundary size
> 240123904
> > KB
> > lvextend -- only 19541 free physical extents in volume group
> "NVolGroup"
> >
> > Next try with: lvextend -l+19541 /dev/NVolGroup/nVol
> > lvextend -- rounding size 240119808 KB to stripe boundary size
> 240123904
> > KB
> > lvextend -- only 19541 free physical extents in volume group
> "NVolGroup"
>
> You cannot currently extend a striped LV onto a new disk.  It would
> involve
> completely rearranging the data to account for the new striping
> configuration.  The reason you get the error is because the tools know
> this
> and are trying to extend on the two original PVs.  If you want to have
> the
> ability to extend the LV onto new disks, you must use linear LVs.
>
> Regards,
>