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  1. OpenShift Virtualization
  2. CNV-19689

[2104430] Add note about how ResourceQuotas work with VMs

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      Document URL: https://docs.openshift.com/container-platform/4.10/virt/virtual_machines/advanced_vm_management/virt-specifying-nodes-for-vms.html

      Section Number and Name: "Advanced Virtual Machine management"

      Describe the issue: ResourceQuotas do work with VMs, but they have functional limits.
      Specifically ResourceQuotas do not work with VMs out-of-the-box if the ResourceQUota has quota set for requests AND limits, that is because resources limits are not set on VMs by default.

      Suggestions for improvement: We need to cover 2 things
      1. Tell that VMs work out-of-the-box with ResourceQuotas if the RQ has a quota set of requests only.
      2. VMs will not work out-of-the-box with a ResourceQuota if the RQ has set both requests and limits OR limits only. For this to work, some mechanism or human has to set resource limits on the VM. In future this is planned to be automatic, but currently this is manual

      Additional information:

            bgaydos@redhat.com Bob Gaydos (Inactive)
            fdeutsch@redhat.com Fabian Deutsch
            Oded Ramraz Oded Ramraz
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              Created:
              Updated:
              Resolved: