[ovirt-users] Not being able to create new partition with fdisk

Hi, I am not able to add new or extend a partitions under CentOS 7 VM in oVirt 4.2.7.5 - 1.el7 Once I get to write to partition table the system pauses with error. "VM XXXX has been paused due to unknown storage error." Can't see much in the log, messages doesn't even signaled it. The VM just pauses. VM storage is on a NFS share, so not a block device, like most of the issues I found. Did search web for similar issue, bit no luck so far. Any ideas? Thank you. Best, Pawel