No, not ALL backups, just the first backup you do: you test that you can restore the data from it. Then you can be confident that following backups will be res

No, not ALL backups, just the first backup you do: you test that you can restore the data from it. Then you can be confident that following backups will be restorable. Corrolary: If you introduce a new folder for another service in your backup, make sure you can restore it too.