Mastering As/400 Performance

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9781882419494: Mastering As/400 Performance
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Whenever we walk into an AS/400 site, we hear the same two pleas: “Make our system perform better” and “Help us figure out why our system is not performing well.” The size of the site makes no difference – the question of performance applies to small B-model systems as well as the largest Advanced Series RISC models. Unfortunately, solutions to perform problems are not always straightforward. Sometimes solving a request to make an AS/400 perform better is simple; however, the solution is often complex. Nevertheless, whether your system is small or large, whether you have a large staff or are a one-person shop, you have the same questions and many of the same problems. Tuning your system for performance is a matter of finding answers to your questions. Many answers are in the IBM documentation (e.g., Performance Tools Guide, Operator Guide, and Work Management guide), but they can be well hidden. There is no straightforward road map to better performance. The chal! lenge of performance tuning is understanding the workings and interrelationships of multiple parts of the system, such as communications, database, and hardware, as well as your end users and your business. In other words, having a good grasp of the big picture of performance tuning is a large part of finding a satisfactory solution. Most people can tune their own systems with some help and direction. Our intent is to help you tune your AS/400 when needed, but also to give you insight into monitoring and correcting performance problems before they become severe. You can use the material in this book regardless of whether you have a CISC or RISC machine. The primary difference is in the way the Timing and Paging Statistics Tool (TPST) and Sampled Address Monitor (SAM) are presented. On RISC machines, they’re now part of the Performance Explorer; CISC machine users can simply follow the book.

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From the Publisher:

If you want more from your AS/400 – faster interactive response time, more batch jobs completed on time, and maximum use of your expensive resources – this book is for you. In Mastering AS/400 Performance, the experts tell you how to measure, evaluate, and tune your AS/400’s performance. After showing you where performance problems lurk, they help you determine what information you need to collect, how to analyze the information, how to present the information to management, and finally how to prevent the problems from recurring. From the authors’ experience in the field, they give you techniques for improving performance beyond simply buying additional hardware. Applicable to both RISC and CISC machines, this book gives you the information you need to be the master of your AS/400’s performance. Learn the techniques, gain the insight, and help your company profit from the experience of the top AS/400 performance professionals in the country.

About the Author:

Arnold, Alan R: Alan Arnold has been working in the IBM midrange systems industry for the last 15 years. He has worked as a programmer, case tool analyst, consultant, systems engineer, regional SE manager, national director of technology services, and most recently as a senior manager for Ernst & Young LLP in the Management and Consulting Information Technology Group. He has spoken throughout the world on the subject of midrange technology and performance and has written numerous articles that have appeared in many of the IBM midrange newsletters and magazines. He has also been active in the COMMON user group. MORE in book. Jones, Charly: Charly Jones is the president and owner of Merlyn and Associates, a company he founded in Seattle to address midrange issues. His company consults throughout the world on advanced midrange performance and work management issues. Charly has been very active in COMMON over the last ten years and was a technical editor for NEWS/400 magazine, specializing in advanced midrange techniques and issues. Charly has worked very closely with IBM Rochester on a variety of AS/400 issues since the system’s inception. Stewart, James C.: Jim Stewart is president of Stewart & Associates of Rochester, Inc., a Minnesota-based AS/400 performance consulting company. Before his retirement from IBM, Jim spent 17 years in the Rochester Development Laboratory working on AS/400 and System/38 development. He was the development manager for the AS/400 Performance Tools Licensed Program Product, where he managed the initial release of the AS/400 performance Tools. Before that assignment, he worked in the System/38 Performance Technical Support area where he was responsible for the S/38 external performance tools, new enhancements, maintenance, field education, and documentation. He has presented various performance analysis seminars at COMMON, IBM technical conferences, and regional user groups. Jim is a graduate of Moorhead State University with graduate studies in Mathematics and Computer Science at the University of Minnesota. He also attended the IBM Systems Research Institute and completed an SRI co! urse of study in Computer Science. Turner, Rick: Rick Turner is president of Rick Turner & Associates, Inc., an AS/400 performance consulting company based in Rochester, Minnesota. Before retiring in 1993 after 29 years at IBM, Rick’s most recent assignment was with IBM’s AS/400 Competency Center in Rochester working on system performance issues, solving customer performance problems, working with the development lab on future system performance-related items, assisting in the training of other technical people to perform performance analysis contracts, and designing and teaching part of a five-day AS/400 Performance Analysis Workshop in Rochester. Rick has worked in the IBM Rochester Development Lab on AS/400 and System/38 systems architecture and design since 1973. He has been involved in a number of system development areas, including hardware and software design, system performance planning, and performance instrumentation and tools on AS/400 and S/38 systems; he also managed a performance department. MORE! in book.

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