Technical Tip: FortiADC message 'the number of enabled hardware-ssl process is exceed the limit'

This error message is related to limit of HTTPS VS with hardware acceleration enabled.

The limit is different based on mode and the default mode depends on firmware version:

- The limit is for a number of hardware accelerated L7 HTTPS VS, it is still possible to create additional VSes, but it is necessary to disable HW acceleration for it.

- It is possible to disable hardware acceleration on VS by:

# config load-balance virtual-server
    edit "<VS name>"
        set hardware-ssl-status disable
    end

It is possible to disable hardware acceleration globally by:

# config system global
    set hardware-ssl-status disable
end

- The hardware SSL mode is not changed by the upgrade.

If it is upgraded from a version before 6.2.0, to a newer version, the mode will remain 'epoll'.

- It is possible to switch the modes between 'epoll' and 'polling', however this can only be done via script.

Open support ticket to switch the modes.

Note: 

- It is not possible to switch modes on v7.0 and 7.1.

- 'epoll' mode is completely removed from v7.2 and newer.