PCE Upgrade Prerequisites

This section provides information on how to prepare to upgrade the PCE.

Upgrade Paths and Planning Tool

For information about upgrade paths for versions of the PCE and VEN, see Versions and Releases on the Illumio Support portal (login required).

For information to help you plan your upgrade, see the Illumio Core Upgrade Path page on the Illumio Support portal (login required).

Consider the following important requirements before you begin upgrading or downgrading the PCE:

Do not upgrade your VENs until the PCE version upgrade is successful. After Illumio VENs are upgraded, rolling back the PCE upgrade is not supported.
Ensure that no asynchronous jobs have been submitted right before you begin the upgrade. As a best practice, wait until all asynchronous jobs have finished before upgrading the PCE.
For a multi-version upgrade, the “Back Up PCE Database and Current Software” steps should only be done a single time at the beginning of the first upgrade sequence. This method allows you to roll back to the starting version if there is an issue with the upgrade.
If you are upgrading from a PCE version earlier than 21.2, and you used the scripts ilo-pipgen and ilo-vpngen to install the earlier version, remove those scripts. They are not needed in version 21.2 and later. If installed in the default location, the scripts can be found at /var/tmp/illumio-pipgen/ilo-pipgen and /var/tmp/illumio-vpngen/ilo-vpngen.