Remote Backup
For longer term backup storage, you can store encrypted backups on off-site cloud storage known as "B2 Buckets". This should not be used for mission critical backups or system backups, which should be on a local drive. Remote storage is best used for backing up documents, photos, and other media that would hate to lose.
It can be helpful to back up service datlike those from radarr, sonarr, and OwnCloud configurations stored in /srv/.
Internet storage bucket storage is generally cheap with unlimited bandwidth for uploading your files. They charge more money for downloading files from their service so they are great for "deep freeze" storage where it exists as a backup in case of emergencies.
Duplicati