Yes, Active memory is nothing but the amount of memory being actively used by VM at that point of moment. It can happen that some time back VM was actively using lets say 10 MB but at the moment, nothing is being actively used.
Another metric is consumed memory: I could see consumed memory is 250+MB, As per me, it shows that ESXi host did allocate memory to the VM some time back and VM had active memory more than 0 MB. Whether your VM was powered OFF?
Below article can help you more on this.
vCenter Memory Metrics
Further read: Some of my articles on memory/DPM/ballooning etc.
http://vthinkbeyondvm.com/part-1-vmware-dpm-vs-esxi-memory-ballooning/
http://vthinkbeyondvm.com/part-2-vmware-dpm-vs-esxi-memory-ballooning/
Updated bit:
----------------------------------------------------------------
Thanks & Regards
Vikas, VCP70, MCTS on AD, SCJP6.0, VCF, vSphere with Tanzu specialist.
https://vThinkBeyondVM.com/about
-----------------------------------------------------------------
Disclaimer: Any views or opinions expressed here are strictly my own. I am solely responsible for all content published here. Content published here is not read, reviewed or approved in advance by VMware and does not necessarily represent or reflect the views or opinions of VMware.
