On Fri, Aug 11, 2006 at 12:48:42PM -0400, Musil, William wrote: > Hello all. > > I have an issue, that I am not sure how to address. > > How can I resize the physical volume if I change the geometry of the disk > (non-destructive resize of RAID volume at the hardware level) > I can see that the OS has picked up the new size of the disk and I would like > to resize the existing pv. I don't know how. > > I started with a hardware raid 5 (400GB), linux automatically recognizes disk > as /dev/sdb > > a simplistic representation of the setup is as follows > > pvcreate /dev/sdb > vgcreate VolGroup10 /dev/sdb > lvcreate -n LogVol10 VolGroup10 > mkfs.ext3 /dev/mapper/VolGroup10-LogVol10 > > I have added a disk and expand the array to 600GB I can still see every thing > but I don't know how to extend the PV. > > filesystems OK > logical volumes OK > volume groups OK > > linux sees /dev/sdb as 600GB > pvs shows pv /dev/sdb is 400GB. I wish to, non-destructively, reinitialize > /dev/sdb so that pvs shows 600GB. how? online or offline ? I'm not aware of any tool that will resize your PV online. I can't immediately think that it would be hugely difficult, but it's a piece of work :-) as for offline, you could do that in an afternoon with shell and dd :-) Other possible strategies include, having partitioned your raid in the first place (yes I know this is silly, but you can see what I mean), or perhaps converting to some other VM software that can do what you need (like, will EVMS do this??) Perhaps there is a way to emulate the 'having partitioned first strategy' and make the new 200G addressable as a seperate block device, at which point a pvmerge command would come in handy :-) (of course that would be easier if the PEs were PE size aligned to the underlying device, but you could take account of that in where you started your new PV :-) Or perhaps some kind soul will point you to something I have missed. Good Luck. Regards, Paddy -- Perl 6 will give you the big knob. -- Larry Wall _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
