Cheryl Watson’s Tuning Letter

1.  Why Are You Still Running OS/390 R10? 2.  z/Architecture Terminology 3.  Cheryl Watson's TUNING Letter 2003, No. 1 Summary 4.  TUNING Letter Updates 5.  Updates to Our December 2002 CPU Chart 6.  New z/OS RSU APAR 1.  Why Are You Still Running OS/390 R10? We were absolutely shocked at SHARE to find that the majority of installations are still running OS/390 R10 in a production environment.  We strongly recommend that you migrate to z/OS 1.4 (the latest release) as soon as possible.  For...

1. SHARE Proceedings (almost) Available 2. Cheryl Watson's TUNING Letter 2002, No. 6 Summary 3. Cheryl Watson's TUNING Letter 2002, No. 6 - GRS Update 1.  SHARE Proceedings (almost) Available SHARE has published the proceedings from the San Francisco August conference on their Web site at http://www.share.org.  We don't know what went wrong, but you can't easily select by speaker.  Some of the speakers are listed by last name only, some by first name only, and some can be found under first or...

1. We're back from Japan 2. Please welcome Clark Kidd 3. TUNING Letter 2002, No. 6 4. Updated CPU Chart 5. SHARE in Dallas 6. Happy New Year! 1.  We're back from Japan We had such a great time touring the Japanese pottery towns that we extended our trip.  We missed our home and work, and were especially ready to leave when snow fell in Tokyo the day we were departing.  We're awfully partial to sunny Florida.  Email in Japan was seldom a problem but we should be able to reply to technical...

1. New z/OS Migration Guide 2. New WLM APAR 3. New WLM Tool 4. Steve Samson's New Book 5. Update to TUNING Letter 2002, No. 5 6. We're still in Japan 1.  New z/OS Migration Guide On September 27, IBM announced the availability of the OS/390 2.10 to z/OS 1.4 Migration manual, officially called z/OS Migration Version 1 Release 4.  Greg Daynes, IBM Senior Technical Staff Member, notes: "The book documents all migration considerations for a customer coming from an OS/390 2.10 system going to a...

1. We're off to Japan! 2. Cheryl Watson's TUNING Letter 2002, No. 5 Summary 3. Update to TUNING Letter 2002, No. 4 & Cheryl's List #70 1.  We're off to Japan!! We're about to leave (September 16th) for a two month trip to Japan.  Tom's got tickets for the fall sumo tournament and some sumi-e (painting) classes, and we're both interested in touring pottery towns (since we both do pottery here).  We have a Japan Railpass, so we hope to visit most of the major parts of the country.  Email...

1. It's Time to Migrate to z/OS 1.4! 2. Cheryl Watson's TUNING Letter 2002, No. 4 Summary 3. Update to TUNING Letter 2002, No. 4 1. It's Time to Migrate to z/OS 1.4! Today IBM issued a very exciting announcement, 202-190.  This is the standard release announcement of the availability for z/OS 1.4 (September 27, 2002) and a preview of 1.5.  But, in addition to the neat enhancements for z/OS, there are some very significant items that make it especially important for you.  This announcement...

1. Request for Data 2. SHARE in San Francisco 1. Request for Data I'm working on a parallel sysplex article for the TUNING Letter and need a good example of a report that I can't reproduce myself (due to volume).  If you can help me out, please send an email to cheryl@watsonwalker.com.  I'm looking for a z/OS 1.2 or 1.3 installation that is running a parallel sysplex environment with a fairly heavy production load.  I'd like to get the RMF reports produced for a peak period. 2. SHARE in San...

1. Important Goal Mode Notice 2. Cheryl Watson's TUNING Letter 2002, No. 2 Summary 3. Cheryl Watson's TUNING Letter 2002, No. 3 Summary 4. Kudos for These Issues 1. Important Goal Mode Notice The first half of this item was included in our fifty-six page 2002, No. 3 TUNING Letter, but we decided that it was so important that we want as many people to be aware of it as possible.  Please feel free to distribute this. NEWSLETTER READERS - PLEASE SEE THE ADDITIONAL MATERIAL, DENOTED BY ASTERISKS....

1. WebSphere Notice 2. CPU Chart Updates 3. SHARE Proceedings 4. Sub-Capacity Reporting Tool 1. WebSphere Notice I am just finishing up my next TUNING Letter, a special issue on Web server tuning.  While researching it, I noticed a date that everyone should be aware of: 6/30/02, the withdrawal of marketing for WAS V3.5.  To help you understand why this date is important, let me describe the current IBM Web Server and Web Application Servers for OS/390 and z/OS: IBM HTTP Server - This comes...

1. New z900 Turbos 2. CPU Chart Changes 3. Back Pain 1. New z900 Turbos On April 30th, IBM announced their latest zSeries machines, the z900 Turbo series.  (Announcement 102-123)  There are 16 new processors that provide about a 20% improvement in speed over the original z900s.  We're now looking at about 300 MIPS for a single CP! Subscribers to Cheryl Watson's TUNING Letter will receive the CPU Chart update containing the MIPS for the z900 Turbo soon.  Electronic subscribers should receive an...