Upgrading and Downgrading the Firmware on IT Controllers (VMware)

Due to some issues with VMware ESXi 6.7 and VMware ESXi 7.0 you cannot upgrade or downgrade IT firmware through LSA following the usual firmware flashing procedure. You must follow this procedure:
  1. Edit the /etc/sfcb/sfcb.cfg file.
  2. Add the httpMaxContentLength: 4194304 parameter.
  3. Restart the LSA service:
    /etc/init.d/sfcbd-watchdog restart
  4. Flash the firmware.