I am a newbie to DB and in particular to MySQL. Are there any good practices to backup MySQL on a large scale? For example, there are a few things I've already found.
Use mysqlbackup (physical backup) instead of mysqldump.
increase key_buffer_size to 20% of RAM (not just for backup extremely helpful option).
take a look at tools of maatkit there are a few for backup.
If you aware of any good stuff for MySQL backup share.