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 VM.
Navigate to the /opt/vmware/evosddc-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)
The three infrastructure (ISVM) virtual machines' Zookeeper server instances and Cassandra distributed database
SDDC Manager instances (the virtual machines in each rack with names starting with vrm)
The SDDC Manager instances' HMS software components
Take a snapshot of all Cloud Foundation VMs - SDDC Manager VM (VRM), ISVMs, LCM VM, and LCM-Backup-Repository VM.
The upgrade is applied to the hosts that belong to a workload domain. To upgrade a standalone host, you must add it to a domain by expanding the domain before upgrading.
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.