Mysql Backup Innodb, how to correct?

Question

MySQL

Is it enough to backup mysql database with this command?

mysqldump -uUSER -pPASSWORD  database --default-character-set=utf8 > dump.sql

Type of tables innodb, or should be done before backup
FLUSH TABLES WITH READ LOCK;?
Backup is done from the slave of the replica.

Answer 1

Let's throw some more useful links here, shall we?
www.percona.com/software/percona-xtrabackup

Answer 2

Enough. You may not flush. If from a replica - you can generally make a binary backup - restore faster.