I have a two-node cluster based on SLE12 SP3, already configured like this: === # crm configure show node 1084783205: clvm2 node 1084783324: clvm1 primitive clvmd clvm \ op start interval=0 timeout=90 \ op stop interval=0 timeout=100 \ op monitor interval=20 timeout=100 \ meta target-role=Started primitive dlm ocf:pacemaker:controld \ op start interval=0 timeout=90 \ op stop interval=0 timeout=100 \ op monitor interval=20 timeout=600 primitive libvirt_stonith stonith:external/libvirt \ params hostlist="clvm1,clvm2" hypervisor_uri="qemu+tcp://192.168.122.1/system" \ op start interval=0 timeout=90 \ op stop interval=0 timeout=100 \ op monitor interval=60 group base-group dlm clvmd clone base-clone base-group === With Hawk, I removed every resource except libvirt_stonith. Then, I try to add DLM resource back, failed with the error below showing on Hawk: ==== 2017-07-25 10:16: Operation monitor failed for resource dlm on node clvm2: call-id=44, rc-code=installation error (5), exit-reason=Config FILE /etc/conntrackd/conntrackd.conf does not exist 2017-07-25 10:16: Operation monitor failed for resource dlm on node clvm2: call-id=44, rc-code=installation error (5), exit-reason=Config FILE /etc/conntrackd/conntrackd.conf does not exist 2017-07-25 10:16: Operation monitor failed for resource dlm on node clvm1: call-id=41, rc-code=installation error (5), exit-reason=Config FILE /etc/conntrackd/conntrackd.conf does not exist 2017-07-25 10:16: Operation monitor failed for resource dlm on node clvm1: call-id=41, rc-code=installation error (5), exit-reason=Config FILE /etc/conntrackd/conntrackd.conf does not exist ===