=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= SEARCH390.COM | Expert Questions of the Week Tip December 18, 2003
Answers to your technical questions and expert advice for the 390 community. =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= ___________________________________________________________________ FROM OUR SPONSOR: - Register for Data Center Futures today! http://datacenterfutures.techtarget.com/html/registration.htm?track=NL-16&Offer=390home ___________________________________________________________________ IN THIS ISSUE | Table of Contents 1. EXPERT QUESTIONS OF THE WEEK - Principles of capacity planning - Capacity planning -- R16 to R26 - Performance and LE memory 2. IMPORTANT ANNOUNCEMENTS AND LINKS - Featured Topic: z/OS performance tuning - Featured Tip: Avoid these storage ROI pitfalls - Career Tip: IT certification: 5 are hot; 5 are not - Poll: Where will your company spend the most money in 2004? - Bonus Tips: UNIX to mainframe FTP ___________________________________________________________________ *********** Attend Data Center Futures, Chicago June 2-4 ********** Why risk getting blindsided or having to play "catch up" with the new technologies and trends that will reshape your data center sooner than you think. Plan now to achieve a core technology foundation with a full understanding of networking, security, storage, systems management and other key challenges. You gain a sneak preview into the next generation of high-performance computing architectures and so much more. Sign up today at: http://datacenterfutures.techtarget.com/html/registration.htm?track=NL-16&Offer=390home ___________________________________________________________________ =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= PRINCIPLES OF CAPACITY PLANNING | Performance and Workload Management Are there any principles or golden figures that can be used as a performance threshold? >> Find out at http://www.search390.com/ateQuestionNResponse/0,289625,sid10_cid564083_tax285125,00.html.?track=NL-16 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= CAPACITY PLANNING -- R16 TO R26 | Performance and Workload Management We're running OS/390 v2r10 on CMOS 9672 R16 with WLM implemented, the result of capacity planning addressed to a bigger R26 machine. Is there any recommendation for migration with to WLM? >> Find out at http://search390.techtarget.com/ateQuestionNResponse/0,289625,sid10_cid550375_tax285125,00.html.?track=NL-16 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= PERFORMANCE AND LE MEMORY | CICS As part of performance tuning in CICS, we tried changing the initial heap size of the application memory manager to match the initial heap size of LE. Given, TxnA (baseline) and TxnB (with changed initial heap size) TxnB took 3ms of CPU time more than TxnA. TxnB took 100ms of elapsed time less than TxnA. TxnA used 18M of user storage where as TxnB used 23M of user storage. TxnA's storage occupancy was 84,810 and TxnB's storage occupancy was 74,754. In your opinion, which transaction has performed better from a holistic point of view? >> For our CICS expert's answer to this question, CLICK: http://search390.techtarget.com/ateQuestionNResponse/0,289625,sid10_cid511749_tax289214,00.html?track=NL-16 >> Got a question for one of our experts? CLICK: http://search390.techtarget.com/ateExperts/0,289622,sid10,00.html?track=NL-16 ___________________________________________________________________ =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= :::::::::: DON'T MISS THESE IMPORTANT MESSAGES AND LINKS ::::::::: =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= FEATURED TOPIC | z/OS performance tuning Learn the ins and outs of z/OS performance tuning with this collection of expert technical advice. >> For this week's Featured Topic, CLICK: http://search390.techtarget.com/featuredTopic/0,290042,sid10_gci941248,00.html?track=NL-16 MORE INFORMATION ON THIS TOPIC: Tip: Evaluating performance impact on existing workload http://search390.techtarget.com/ateQuestionNResponse/0,289625,sid10_cid555570_tax285125,00.html?track=NL-16 Tip: Understanding performance metrics terms http://search390.techtarget.com/ateQuestionNResponse/0,289625,sid10_cid530424_tax285033,00.html?track=NL-16 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= FEATURED TIP | Avoid these storage ROI pitfalls At many shops, adding incremental storage is an operational expense that few people analyze deeply, if at all, from a cost-versus-benefit point of view. Storage is simply considered a cost of doing business, much like buying a few additional PCs might be. >> Read entire tip: http://search390.techtarget.com/tip/1,289483,sid10_gci927576,00.html?track=NL-16 >> For more helpful Information Architecture tips, CLICK: http://search390.techtarget.com/tipsIndex/0,289482,sid10_tax285350_alpD_idx0,00.html?track=NL-16 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= CAREER TIP | IT certification: 5 are hot; 5 are not Is your certification a valuable commodity or dead weight? Read this column and find out. >> Read this entire Career tip at http://search390.techtarget.com/tip/1,289483,sid10_gci936183,00.html.?track=NL-16 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= TAKE OUR POLL! In which of the following areas will your company spend the most money in 2004? >> Go to the homepage and take our poll. CLICK: http://Search390.techtarget.com/?track=NL-16#poll >> Be sure to take advantage of our new "Sound Off" feature appearing just below the poll. Share your thoughts on this poll and/or view all posted poll messages. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= BONUS TIPS | UNIX to mainframe FTP Ever have trouble executing FTP from a Unix system to a mainframe, or vice versa? With this handy collection of tech tips, you're sure to become a master of cross-platform FTP. http://search390.techtarget.com/featuredTopic/0,290042,sid10_gci900287,00.html?track=NL-16 -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= :::::::::::::::::::::: SEARCH390.COM CONTACTS ::::::::::::::::::::: MARK BRUNELLI, Site Editor (mailto:[EMAIL PROTECTED]) >> Send us your original articles and best practices. MARYANN TRIPP, Assistant Editor (mailto:[EMAIL PROTECTED]) >> Send your white papers and best Web links. 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