On Fri, Jul 08 2011 at 7:17pm -0400, adultsitesoftware@gmail.com <support@bettercgi.com> wrote: > Virtual size lets you create a 200G file system om a 20G LV and then lvextend as needed, without the need to resize the filesystem. Read about sparse files for ideas of other uses. > > It'd like a sparse device in that blocks need not actually exist until they are written to. > > It currently has a performance and flexibility impact that prevents us from using it, though we would like to. Please have a look at the DM thinp target that was just posted to dm-devel. We don't have lvm2 support for this thinp target yet, we are working on it, but thinp is a much richer solution that should address your needs. Mike _______________________________________________ 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/