An administrator needs to upgrade AOS in a vSphere-based Nutanix five-node cluster with no automatic live migration. VMs have neither affinity nor anti-affinity rules configured.
What will happen to VMs during the AOS upgrade?
An administrator needs to upgrade AOS in a vSphere-based Nutanix five-node cluster with no automatic live migration. VMs have neither affinity nor anti-affinity rules configured.
What will happen to VMs during the AOS upgrade?
During an AOS upgrade in a vSphere-based Nutanix cluster, the system needs to ensure that the services remain uninterrupted. Typically, the process involves automatic live migration of VMs to other hosts to prevent downtime. Since there are no affinity or anti-affinity rules, the system is free to migrate VMs as needed. This ensures that VMs continue running on different hosts without interruption while the host undergoes the AOS upgrade.
When upgrading AOS in a vSphere-based Nutanix cluster with no automatic live migration, the VMs will continue to run on the same host, providing that the VMs have neither affinity nor anti-affinity rules configured. The upgrade process will put the host into maintenance mode, which will cause the VMs running on that host to be suspended temporarily. Once the AOS upgrade is completed, the host will be taken out of maintenance mode, and the VMs will be resumed, but running on the same host. The AOS upgrade process does not automatically live migrate VMs to other hosts, because the automatic live migration feature is not enabled in the cluster.
Source pls? I cannot find this anywhere.
B. VMs will continue to run on the same host.
User VMs may live migrate between hosts depending on what type of upgrade is performed but there should be no impact to their services. Users should maintain access to their VMs and be able to work as normal during the upgrade. VMs which cannot live migrate, such as those with vGPUs or Affinity Rules, will need to be powered-down or to have these settings removed in-advance of any upgrade that requires a host reboot. Failure to do so will result in the upgrade becoming stuck in the process of evacuating User VMs.https://portal.nutanix.com/page/documents/details?targetId=Acropolis-Upgrade-Guide:upg-cluster-upgrade-aos-c.html