OptionalmaxOptionalmaxMaxGuest defines the maximum amount memory that can be allocated to the guest using hotplug.
OptionalmaxMaxHotplugRatio is the ratio used to define the max amount of a hotplug resource that can be made available to a VM when the specific Max* setting is not defined (MaxCpuSockets, MaxGuest) Example: VM is configured with 512Mi of guest memory, if MaxGuest is not defined and MaxHotplugRatio is 2 then MaxGuest = 1Gi defaults to 4
MaxCpuSockets provides a MaxSockets value for VMs that do not provide their own. For VMs with more sockets than maximum the MaxSockets will be set to equal number of sockets.