I split this out into a new discussion.
You can back up the virtual appliance as a whole with a snapshot or other VMware/Hyper-V backup solution.
You can back up the content (database, settings) to a Windows file share. More info: SolarWinds Knowledge Base :: How to Configure Backups on Your LEM Appliance
Hi Nicole thank for replying
i think the second link looks very promising for my project i need to try it