This is incorrect. You can use XtraBackup for this which is an open source alternative to innodb hot backup. Alternately you can quickly lock tables and take

This is incorrect. You can use XtraBackup for this which is an open source alternative to innodb hot backup. Alternately you can quickly lock tables and take a filesystem snapshot or even run mysqldump with --single-transaction all which will let you get a consistent dump of a set of InnoDB tables.