It is strongly recommended that data local users have a robust backup policy which includes regularly saving a copy of their Gatekeeper backup to an external media source to mitigate against data loss. Data secure users should also consider a similar approach.
Gatekeeper automatically creates a backup on the local machine during the synchronisation process. To create a backup in an alternate location:
From the main Gatekeeper screen, click ‘Synchronise’
In the ‘Backup Options’ section, select ‘Alternate’
Click ‘Browse’
Navigate to required alternate location (USB or other external drive, etc) and click ‘OK’
Click ‘Synchronise’