for mariadb : 0) make sure the the database data volume is on lvm or zfs in a sql prompt: 1) BACKUP STAGE START; BACKUP STAGE BLOCK_COMMIT; 2) \! the she

for mariadb : 0) make sure the the database data volume is on lvm or zfs in a sql prompt: 1) BACKUP STAGE START; BACKUP STAGE BLOCK_COMMIT; 2) \! the shell command to take the snapshot 3) BACKUP STAGE END; you can now mount your snapshot, copy it offsite and delete it. The restore procedure is left as an exercise!