Проработать по MySQL

http://dev.mysql.com/doc/refman/5.0/en/mysqladmin.html
http://dev.mysql.com/doc/refman/5.0/en/backup-methods.html
http://dev.mysql.com/doc/refman/5.0/en/reloading-delimited-text-dumps.html
http://dev.mysql.com/doc/refman/5.0/en/replication-solutions-backups-mysqldump.html
http://dev.mysql.com/doc/refman/5.0/en/replication-administration-status.html
http://dev.mysql.com/doc/refman/5.0/en/replication-solutions-backups-rawdata.html
http://dev.mysql.com/doc/refman/5.0/en/flush.html