I've not seen that before, but make sure you are on the most current vFog 6.7.1 and let us know what version of vSphere you are running.  Odds are that the vCenter API is giving us bad data.
Hi Team,  I wanted to understand what is the memory consumed parameter mean, It says memory consumed for a Virtual machine 3TB which does not make sense, and similarly the top memory consumers or ESX level shows 26.4 TB  Can you please help me interpret this.  
VMware cartridge - Memory Consumed