Backup Schedule

Schedule how often you want your image backed up.
Images on ZFS node storage and ZFS shared storage are automatically backed up via ZFS file-system snapshots. Administrators may trigger an unscheduled backup by cliking “Backup now”.
Images on node storage and non-ZFS shared storage are backed up via LVM-snapshots and rdiff-backup.
Selecting “Clear backups” and saving the image will clear all backups for images on non-ZFS storage, so please be careful with that.
Please note, that backup for images on shared ZFS storage cannot be scheduled or cleared. These images are always backed up every night.

Read more about backup in Stabile here.