VMware NSX for vSphere 6.0.x VMware NSX for vSphere 6.1.x VMware NSX for vSphere 6.2.x VMware NSX for vSphere 6.4.x VMware NSX for vSphere 6.3.x
Cause
This issue occurs when there is a problem with the physical infrastructure such as loss of connectivity to the storage device or a connectivity issue with physical NIC or switch.