If the ESXi upgrade is required for upgrading the application to Release 10.2.x, use the following procedure to upgrade the ESXi to a supported ESXi version.
Take the backup of the application and keep it on remote servers. For information about creating a data backup on a remote server, see the application-specific document.
Procedure
Shut down all the virtual machines that are hosted on the ESXi.
Put the ESXi into maintenance mode.
For information about performing steps on ESXi, see VMware product documentation website.
Upgrade ESXi to supported ESXi version.
For information about upgrading ESXi, see VMware product documentation website.
After upgrading the ESXi host, log in to the host UI, and exit from the ESXi maintenance mode.
