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# stop service

sudo service mysql stop

# conf file

/etc/mysql/my.cnf

# chenge ownership of a folder

chown -R mysql:mysql /array2/mysql

# app armor alias:

/etc/apparmor.d/tunables/alias

echo "alias /var/lib/mysql/ -> /var/lib/virtuoso-opensource-6.1/mysqldb/mysql_data/," >> /etc/apparmor.d/tunables/alias

# appArmor mysql user

/etc/apparmor.d/usr.sbin.mysqld

http://www.prodevtips.com/2012/05/24/moving-the-mysql-database-directory-to-different-drive-on-ubuntu/

#tune database for insert

http://derwiki.tumblr.com/post/24490758395/loading-half-a-billion-rows-into-mysql