You must ensure that these prerequisites are met before upgrading.
Take a back up of your Cloud Foundation system.
Using the root account, SSH in to the SDDC Manager Controller VM.
Navigate to the /opt/vmware/sddc-support directory.
Type the following command:
The backup is stored in the /var/tmp directory.
The SoS tool makes backup files of these components' configurations:
Switches (management, ToR, inter-rack)
SDDC Manager Controller VM
SDDC Manager Utility VM
The SDDC Manager instance's HMS software components
Take a snapshot of all VMs.
In a multi-rack scenario, the Cloud Foundation version must be the same on all racks. Therefore, if you are planning to add a new rack to your setup, you must first upgrade rack 1 to the latest version before adding the new rack to your environment.