VM reporting full memory usage in esxi & vcenter but host usage isn’t even close.

Hello /r/vmware

I’ve got a VM thats always reporting in ESXI and vcenter that its memory is 100% in use when this is never the case.

View post on imgur.com

Actual usage at the time of this snip was around 2.7GB, any happen to know why this is happening? It does have the memory reserved but I wouldn’t think that would result in reporting 100% usage.

Any help is welcome.


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  1. Why are you reserving the VM’s memory? There’s almost never a good reason for reserving memory or CPU for a VM if there are other VMs running on the same host.

    Additionally if the host is part of a cluster and HA is enabled for the cluster it significantly impacts the admission control for the cluster.

    So, unless you have a specific reason for reserving the memory, consider disabling the reservation. As long as there are not significant memory pressures on the host from other VMs I do not anticipate that you would see any performance hit on this particular VM.

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