[ovirt-users] Ovirt vs lvm?

Hi, Our production ovirt system looks like: standalone management server, vesion 4.3.9, 6 clusters, 28 nodes (v4.2, v4.3) , one storage domain, (FC SAN Storages), centos7 vm-s , and some windows vms. I have a returning problem. Sometime when i power off a vm and power on again , i get an error message our linux vm (when we use lvm of course): dracut: Read-only locking type set. Write locks are prohibited., dracut: Can't get lock for vg. I can repair only 70% of damaged vm. I tried to localize the problem, but a can`t. The error occured randomly every cluster, every storage on last 2 years. Has anyone ever encountered such a problem?