Backup

Send a SIGUSR1 signal to a running omega-server process to issue a backup command.

A new backup file labeled with the current timestamp will be created in the directory configured in omega.yml.

Restore

Send a SIGUSR2 signal to a running omega-server process to load entities from the latest backup.

Scripts

The omega-backup and omega-restore utilities do just this, looking up the PID of the running omega-server process in the process table before issuing the corresponding signal.