Percona XtraBackup is OpenSource online (non-blockable) backup solution for InnoDB and XtraDB engines. It can back up data from InnoDB, XtraDB, and MyISAM tables on unmodified MySQL 5.1, 5.5 and 5.6 servers, as well as Percona Server with XtraDB. WWW: http://www.percona.com/doc/percona-xtrabackup/