On 09/07/2015 03:44 PM, Chris Webb wrote: > (I note from the pvscan(8) man page that global_filter applies to pvscan > --cache but not standard filter, which sounds like another good reason > to switch to global_filter!) Yes, exactly. The idea behind filter and "global_filter" split is that the global_filter applies globally on system scope (in our context of lvmetad, it means lvmetad will see everything that "global_filter" allows, not taking care about the "filter"). Then each LVM client (all LVM commands except pvscan --cache) can use different "filter" for the information that lvmetad returns. So you have two levels of filtering here: global one and client-side one (that's exactly the split between "to update lvmetad" and "to retrieve info from lvmetad" filter chain I described in my previous post). -- Peter _______________________________________________ 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/