Written by Sun MIS professionals with over 30 years of mainframe systems programming, data center management, and networking experience, this book documents how the authors successfully developed and implemented Sun's rightsizing strategy — providing the PROOF — not the hype. Shows how the authors implemented a 24x7 UNIX distributed Client/Server production infrastructure in their Mainframe Data Center environment to support distributed Mission Critical UNIX Business Applications, while continuing to manage their heterogeneous environment of HPs and Mainframes. Explores such topics as the network, the data center, transitioning people, production server room, productionalizing UNIX applications, production standards and procedures, service level agreements, system management tools, rightsizing tools/methodologies, cost benefit, disaster recovery, security, the problems endured, chargeback, high volume UNIX production printing.