You can edit and delete an existing host upgrade unit group before you start the upgrade or after you pause the upgrade.
Hosts in a ESXi cluster appear in one host upgrade unit group in the upgrade coordinator. You can move these hosts from one host upgrade unit group to another host upgrade unit group.
Note: If any of the hosts are part of a vSAN enabled cluster, retain the default upgrade unit groups without recreating any groups.
Prerequisites
- Verify that you have configured the overall hosts upgrade. See Configure Hosts.
- Verify that ESXi hosts that are part of a disabled DRS cluster or standalone ESXi hosts are placed in maintenance mode.
For ESXi hosts that are part of a fully enabled DRS cluster, if the host is not in maintenance mode, the upgrade coordinator requests the host to be put in maintenance mode. vSphere DRS migrates the VMs to another host in the same cluster during the upgrade and places the host in maintenance mode.
- For ESXi host, for an in-place upgrade you do not need to power off the tenant VMs.
- For a KVM host, for an in-place upgrade you do not need to power off the VMs. For a maintenance mode upgrade, power off the VMs.
Procedure
What to do next
Upgrade the newly configured hosts. See Upgrade Hosts.