Installing an update in a HA environment can be effected with high reliability and without downtimes, even if the update fails.
Important: reate a backup of your configuration before initiating an update. For more information on updates, refer to
Updates Settings.
The master node controls the update process as follows:
- Downloading the update or upgrade This step will be skipped if you have already downloaded the update or upgrade or if you have installed the upgraded firmware on the firewall manually, e. g. in an offline environment.
- Synchronizing the update or upgrade with the slave node through the cluster link.
- Installing the update on the slave node The master node initiates the update or upgrade installation on the slave node. If an error occurs, the master node continues to work while the update process is being suspended. Contact our Support team to support you in case of downtimes.
- Installing the update on the slave node After installing the update on the slave node, it is installed on the master node.
Important:
Automatic updates are allowed when HA is enabled to prevent data loss or network downtimes as a successful role switch cannot be guaranteed after a failed installation of the update.
If both systems are not in sync, updates cannot be initiated.
