HA graceful upgrade to FortiOS 6.2.3
Use the following steps to upgrade a FortiGate-6000 or 7000 HA cluster with uninterruptible-upgrade
enabled from FortiOS 6.0.8, 6.0.9, or 6.0.10 to FortiOS 6.2.3.
Enabling uninterruptible-upgrade
allows you to upgrade the firmware of an operating FortGate-6000 or 7000 HA configuration with only minimal traffic interruption. During the upgrade, the secondary FortiGate upgrades first. Then a failover occurs and the newly upgraded FortiGate becomes the primary FortiGate and the firmware of the new secondary FortiGate upgrades.
To perform a graceful upgrade of your FortiGate-6000 or 7000 from FortiOS 6.0.8, 6.0.9, or 6.0.10 to FortiOS 6.2.3:
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Use the following command to enable uninterruptible-upgrade to support HA graceful upgrade:
config system ha
set uninterruptible-upgrade enable
end
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Download FortiOS 6.2.3 firmware for FortiGate-6000 or 7000 from the https://support.fortinet.com FortiOS 6.2.3 firmware image folder.
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Perform a normal upgrade of your HA cluster using the downloaded firmware image file.
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Verify that you have installed the correct firmware version. For example, for the FortiGate-7040E:
get system status Version: FortiGate-7040E v6.2.3,build6252,200221 (GA) ...