xtrabackup部分备份数据库 Partial Backups

官方文档：

部分备份：

http://www.percona.com/doc/percona-xtrabackup/2.1/innobackupex/partial_backups_innobackupex.html

http://www.percona.com/doc/percona-xtrabackup/2.1/innobackupex/restoring_individual_tables_ibk.html

增量备份：

http://www.percona.com/doc/percona-xtrabackup/2.1/innobackupex/incremental_backups_innobackupex.html

http://www.percona.com/doc/percona-xtrabackup/2.1/howtos/recipes_xbk_inc.html