On Thu, Jul 09, 2020 at 08:44:23AM +0800, Gang He wrote: > > pvmove is implemented with mirroring, so that mirroring would need to be > > replaced with something that works with concurrent access, e.g. cluster md > > raid1. I suspect there are better approaches than pvmove to solve the > > broader problem. > Sorry, I am a little confused. > In the future, we can do online pvmove when VG is activated in shared mode? I think it's unlikely, but possible if someone has interest. I'd first encourage them to think about new ways to solve the problem. > from man page, I feel these limitations are temporary (or Not Yet Complete). wording should probably change > By the way, --lockopt option can help this situation? I cannot find the > detailed description for this option in manpage. No, lockopt is for some one-off special cases where we might need to work around ordinary behaviors (like --nolocking.) There's no workaround to the problem that dm-mirror doesn't work under a shared LV. Dave _______________________________________________ linux-lvm mailing list linux-lvm@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/