Changing the cluster age difference margin
You can change the cluster age difference margin using the following command:
config system ha
set ha-uptime-diff-margin 60
end
This command sets the cluster age difference margin to 60 seconds (1 minute). The age difference margin range 1 to 65535 seconds. The default is 300 seconds.
You may want to reduce the margin if during failover testing you don’t want to wait the default age difference margin of 5 minutes. You may also want to reduce the margin to allow uninterruptible upgrades to work. See
“Upgrading cluster firmware”.
You may want to increase the age margin if cluster unit startup time differences are larger than 5 minutes.