i have looked around the net and not found much info about this...
so i spent time experimenting...
i have a centos 5 system with a 32m pe size vg and have attached some storage with an lvm1 4m pe size vg. i converted the old vg to lvm2 without problem, but i would like to merge the volumes and pvmove data onto the newer 32m pe pvs. but you can't merge things with different pe size, so i've been trying to get the 4m pe vg changed to 32m pe. after much monkeying around i was able to get all the pvs and lvs to have le counts that were the right size to be convertible to 32m pe. but it looks like each segment must be sized appropriately and i can't find a way to merge segments together so that things are sized correctly.
it turns out that pvmove will coalesce adjecent segments. so i was able to use a series of pvmoves to get all my segments to be contiguous and a mulitple of the new pe size i wanted.
once i did that, then vgchange -s worked just fine. _______________________________________________ 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/
