• Home
  • Publications
    • Cheryl Watson’s Tuning Letter
    • Current Subscribers
    • Cheryl Watson’s CPU Chart
    • Articles
    • SMF Reference Summary
    • Free Presentations
    • Our Favorite Links
    • IBM Systems Center Books
  • Education
    • Latest News & Upcoming Events
    • z/OS Software Pricing Workshop
  • Software
    • GoalTender
    • Free Tools
  • Services
    • Technical Support
    • Starter Pack
    • Software Pricing Health Check
    • Sysplex Health Check
    • Tailored Fit Pricing (TFP)
    • DevTest Solution
    • SCRTPro Monthly
    • Software Contract ELA Review
    • Software Contracts and Audits
    • MLC to OTC Conversions
    • Outsourcing Cost Reduction
    • Country Multiplex Pricing (CMP)
  • Blog / Media
  • About

JES2 CPU Increase in z/OS 2.2

August 18, 2016Cheryl's Listfrank

For those of you that don’t follow IBMMAIN (Cheryl follows everything – I think the NSA follow Cheryl to reduce their own workload!), there has been some recent discussion about an issue in JES2 whereby it consumes 2-3 times as much CPU in z/OS 2.2 as in z/OS 2.1.  In an ideal world, you would have spotted that during your normal review of system activity and CPU usage, especially following an upgrade (the additional CPU time shows up in the JES2 address space, in the IAXIS module). But who has the time any more for such ‘luxuries’?

Anyway, two APARs are required to completely address the problem – OA50777 (JES2) and OA50806 (RSM).  ++APAR fixes are available, but we hear that the PTFs will be available next week, and apparently removing the ++APARs is a bit of a bear, so probably best to wait for the PTFs at this point.  All the customers that were impacted commented on how quickly IBM reacted and made the ++APARs available.  So, kudos to the JES2 and RSM teams.  Support like that is the reason so many enterprises wouldn’t consider any other platform for their really critical applications.

Stay Tuned and enjoy the rest of your summer – it will be over before you know it. 🙁

Search this site

Subscribe to our Cheryl’s List blog

listSign up for Cheryl's List

Latest Posts

  • Cheryl Watson’s Tuning Letter 2020 No.3 Is Now Available
  • Free GSE UK Conference and IBM Techdocs Snafu
  • IBM Red Alert and Upcoming Webinar on Managing TFP
  • Cheryl Watson’s Tuning Letter 2020 No. 2 Available now
  • Cheapest z/OS Training Available!
  • Coming Soon to a Screen Near You!
  • Latest Tuning Letter and CPU Chart Now Available
  • Cheryl Watson’s Tuning Letter 2020 No. 1 Emailed to Subscribers
  • Prepare for Upcoming End-of-Support Dates
  • Cheryl Watson’s Tuning Letter 2019 No. 4 Published

1661 Ringling Blvd, PMB 49886
Sarasota, FL 34230
Phone: 941-924-6565
Fax: 941-924-4892
Customer Service: admin@watsonwalker.com
Technical support: technical@watsonwalker.com
listContact Us

Subscribe to our Cheryl’s List blog

Sign up for Cheryl's List

Follow Cheryl Watson

LinkedIn

Copyright 2020 © Watson & Walker, Inc.