29.3 Saving Configuration
The Maintenance Actions page allows you to save (burn) the current parameter
configuration (including loaded auxiliary files) to the device's non-volatile memory (i.e.,
flash). The parameter modifications that you make throughout the Web interface's pages
are temporarily saved (to the volatile memory - RAM) when you click the Submit button on
these pages. Parameter settings that are saved only to the device's RAM revert to their
previous settings after a hardware/software reset (or power failure). Therefore, to ensure
that your configuration changes are retained, you must save them to the device's flash
memory using the burn option described below.
 To save the changes to the non-volatile flash memory :
1. Open the Maintenance Actions page (see 'Basic Maintenance' on page 321).
2. Under the 'Save Configuration' group, click the BURN button; a confirmation message
appears when the configuration successfully saves.
Notes:
• Saving configuration to the non-volatile memory may disrupt current
traffic on the device. To avoid this, disable all new traffic before saving,
by performing a graceful lock (see 'Locking and Unlocking the Device' on
page 323).
• Throughout the Web interface, parameters displayed with the lightning
symbol are not applied on-the-fly and require that you reset the device for
them to take effect (see 'Resetting the Device' on page 321).
• The Home page's General Information pane displays whether the device
is currently "burning" the configuration (see 'Viewing the Home Page' on
page 57).