Cheryl Watson’s Tuning Letter

2015 Tuning Letters

Access the 2015 Tuning Letter Downloads

No. 4 (136 pages)

Management Summary
What’s New in z/OS 2.2 (Part 2)
HiperDispatch Questions and Answers
User Experiences
  • Mirroring XCF Couple Data Sets
  • HiperDispatch and Capacity Groups
  • SMF Log Streams and User SMF Records
  • JES3 to JES2 Migration
A Holistic Approach to Capacity Planning
VSAM RLS – Configuring for Performance
zPDT Performance and Capacity
News
  • Red Alerts
  • Recent APARs
  • News from Techdocs
  • Social Media
  • Publications
  • Events / Conferences
Acknowledgments
  • Blog Entries
Cheryl’s List Blog Posts
  • Blog Entries

No. 3 (108 pages)

Management Summary
  • Passing the Baton
  • What’s New in SMF?
  • IOPs – the ‘Shrinking Violets’ of I/O Processing
  • User Experiences and Tips
  • News You Can Use
Welcome to Alan Murphy
User Experiences
  • Using Sort to Process SYS1.MAN Data Sets
  • Use of 2 GB Pages
  • z/OS Security
  • Capacity Planning for zAware
z/OS Changes Available in Previous Releases
What’s New in SYS1.PARMLIB?
  • z/OS 2.2 Enhancements in 1.13
  • z/OS 2.2 Enhancements in 2.1
  • z/OS Parmlib Enhancements
Top 10 Security Findings
Extended Address Volumes
What’s New in SMF – Part 1
Your Very Own Mainframe
News
  • Red Alerts
  • Recent APARs
  • News From Techdocs
  • Social Media
  • Publications
  • Events/Conferences
Acknowledgments
Cheryl’s List Blog Posts
  • Blog Entries

No. 2 (88 pages)

Management Summary
User Experiences
  • GDGFIFOENABLE/DSENQSHR
  • RMF DYNALLOC
  • Increased WLM CPU
  • Apache HTTP Server
  • High CPU for Striped Data Sets
  • zEDC User Experiences
Frank's Viewpoint
  • Change Avoidance
  • Enjoy Your Summer!
  • zEDC Users
zIIP Capacity Planning
  • zIIP/zAAP Overview
  • zIIP Capacity Planning
  • Monitoring IIPCP Time
  • Resources
Preparing for VSAM RLS Implementation
  • Choosing Candidates
  • Understanding Prerequisites
  • Sharing Control Data Sets
  • SMF Considerations
  • Other Considerations
  • Summary of Steps
  • References
  • Conclusion
z13 Processor Performance
  • z13 Processor Design Drivers
  • z13 processors
  • Analysis of LSPR Ratings
  • Performance Expectations
News
  • New Function APARs
  • Parmlib APARs
  • SMF APARs
  • Performance APARs
  • Health Checker APARs
  • Red Alerts
  • News from Techdocs
  • Social Media
  • Publications
  • Events/Conferences
Acknowledgments
Cheryl’s List Blog Posts

No. 1 (101 pages)

Management Summary
Optimizing Efficiency of COBOL V5 Load Processing
  • Background
  • PDSE Hiperspaces
  • LLA and VLF
  • Putting it All Together
  • Recommendations
  • References
What's New?
  • IBM z13
  • z/OS 2.2 Preview
New IBM Software Pricing Options
  • COBOL Binary Optimizer
  • COBOL V5.2
  • References
User Experiences
  • TCP/IP and XCF
  • Job Eviction
  • zEDC Experience
  • Apache HTTP Server
  • COBOL V5 User Experience
  • Tips for SHARE Proceedings
Frank's Viewpoint
  • The z Skills Gap
Erase-On-Scratch
  • Why Should I Care?
  • Erase-On-Scratch History
  • Summary
  • References
Eye Test Time
Introduction to VSAM RLS
  • A Brief History of VSAM
  • CICS and VSAM Interactions
  • How VSAM RLS Work
  • Conclusion
  • References
Fixing Your Cats the Easy Way
  • What Is a Fix Category
  • Where Can I Find FIXCATs
  • Obtaining FIXCAT Information
  • Running FIXCAT Reports
  • Automating the Process
  • Summary
  • References
News
  • New Function APARs
  • Parmlib APARs
  • SMF APARs
  • Performance APARs
  • Health Checker APARs
  • Red Alerts
  • News from Techdocs
  • Social Media
  • Publications
Acknowledgments
Cheryl’s List Blog Posts
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