On Thu, Aug 29, 2019 at 01:52:48PM +0000, Heming Zhao wrote: > fedora-server (kernel: 5.2.9-200 with rpmbuild: lvm2-2.03.05) > event_activation=1: 2min 3.661s > event_activation=0: 1min 57.478s We've recently been looking at other similar cases, although not with the unusual partitioning scheme you have. Could you send the output of systemctl status on each of the lvm2-pvscan services? Also, try setting obtain_device_list_from_udev=0 in lvm.conf to avoid some delays from udev. Thanks, 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/