Less than 1G database, using mysqldump
Than 1G database, with xtrabackup
Backup Strategy
###### mysql backup at 2019/01/09 by dba, 2:00 every day backups of ######
0 2 * * * /bin/sh /data/scripts/mysql_backup.sh >/dev/null
###### mysql backup at 2019/01/09 by dba, 10 am each day, at 22 points each time a backup ######
0 10,22 * * * /bin/sh /data/scripts/mysql_backup.sh >/dev/null
###### mysql backup at 2019/01/09 by dba, once every 4 hours backup ######
0 */4 * * * /bin/sh /data/scripts/mysql_backup.sh >/dev/null
###### mysql backup at 2019/01/09 by dba, once every 6 hours backup ######
0 */6 * * * /bin/sh /data/scripts/mysql_backup.sh >/dev/null