Hi, we often notice that Hyper-V 2019 is reporting a much higher memory demand for a couple of our virtual machines. These virtual machines are all Windows Server 2019 Standard. Domain controllers, Print servers, Data servers etc.
For example we have one Domain Controller (VM) assigned 4096 MB of memory (non dynamic). If you logon to the server it shows it is never using more than 2800 MB of RAM over a period of monitoring it for a whole week.
But if you open the Hyper-V console it shows Assigned Memory: 4096 MB - Memory Demand: 7376 MB
Can anyone comment on why it seems to think it needs more memory even though I never see it going above 3GB while it has 4GB assigned? Is this a bug and can I ignore this or is something else going on here. This behavior happens to a couple other VM's as well.
If it does need more memory somehow the VM could actually be swapping on the disks or ssd's on the datastore. If too many VM's do this it could in theory wear out the SSD's much faster where the virtual disks are located right?
Any clue on this?


