Mike Ault is a senior technical management consultant with TUSC and holds five Oracle master certificates. He is the author of 14 Oracle-related books, including Oracle 9i RAC and Oracle DBA Exam Cram . He lives in Alpharetta, Georgia. Madhu Tumma has been a software developer, IT manager, database administrator, and technical consultant and has worked on a wide variety of projects and environments, including mainframe, client-server, eBusiness, and managed services. He has consulted a variety of clients on database clusters, business continuity, and high availability solutions. He is a frequent speaker at Oracle World and IOUG, where he has presented many technical papers and is the author of Oracle 9i RAC . He lives in Princeton, New Jersey.