On Line Transaction Processing : Mike re-designed a ultra-high volume OLTP database farm that supports 600 Million DB transaction a day using clusters of low-cost MySQL machines. These databases are the back-end support to tens-of-thousands of web transactions per-second from Internet applications. The on-line revenue from these Linux and Windows applications require absolute 24*7 availability as well as data consistency throughout the entire farm of WEB and DataBase servers. M