HA graceful upgrade to FortiOS 6.2.7
Use the following steps to upgrade a FortiGate-6000 or 7000 HA cluster with uninterruptible-upgrade enabled from FortiOS 6.0.12 or 6.2.6 to FortiOS 6.2.7.
Enabling uninterruptible-upgrade allows you to upgrade the firmware of an operating FortiGate-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, 6.0.10, 6.0.12, 6.2.3, 6.2.4, or 6.2.6 to FortiOS 6.2.7:
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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 6.2.7 firmware for FortiGate-6000 or 7000 from the https://support.fortinet.com FortiGate-6K7K 6.2.7 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-6301F:
get system status Version: FortiGate-6301F v6.2.7,build1179,210714 (GA) ...