Aria Operations reports recommend resizing some NSX nodes.
NSX
When upgrading between major versions of NSX, (i.e. 3.x to 4.x), the VM's are NOT automatically "right sized." So it becomes necessary to resize these components as minimum requirements have changed between versions.
Use the following guides to resize the respective components.
* In the Edge Node KB there is a link at the bottom for resizing Edge nodes from an SDDC manager using a script. If you are in an SDDC environment, this is the recommended method for resizing Edge nodes.