Just say no: A case for eliminating I/O Priority management
Date: February 22, 2022
Time: 2 pm ET | 1 pm CT
As of z/OS 2.5, WLM coefficient settings were removed; IBM made a good move in sunsetting an obsolete set of variables. I/O priority should follow. WLM I/O Priority has been around for a long time and is in use at many data centers. A recent survey revealed many sites are not even clear on what the setting does. While the default is ‘off’ the recommendation in the WLM Planning manual is ‘on’. In this presentation, we will demonstrate why this option should be turned off and perhaps removed entirely like the coefficients.
Upcoming Events
IntelliMagic attends several industry events in the US and Europe every year. You can visit our booth and attend our presentations at the following events:
SHARE Dallas
Dates: March 27-30, 2022
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Past Events & Webinars
IntelliMagic attended many industry events and hosted many webinars in the past. You can read recaps, watch event presentations and replay webinars of almost all of them:
2022
- Webinar, January 18, CPU Reporting and Tuning in a TFP Environment
2021
- Webinar, December 7, How Long is Too Long? Multi-period Service Classes
- Webinar, November 10, Imagine How Much You Can Learn Exploring MQ Statistics and Accounting Data
- Webinar, November 3, The Business Value of Smarter Enterprise Storage Analytics
- IBM TechU 2021 Virtual Edition, October 2021
- Webinar, October 19, Imagine How Much You Can Learn Exploring CICS Transaction and Statistics Data
- Webinar, September 14, User Experience Leveraging Db2 SMF Data to Solve Business Problems
- Webinar, August 17, Imagine How Much You Can Learn Exploring Db2 Accounting Data
- SHARE Virtual Experience, August 2021
- Webinar, July 20, Imagine How Much You Can Learn Exploring Db2 Statistics Data
- Webinar, June 24, Is Your Mainframe Being Maintained like a Ford F-150 Lightning or a Model T?
- IDUG Virtual, June 2021
- Webinar, May 11, How to Make the Best of IBM’s TS7700 Virtual Tape Solution
- Webinar, April 14, Dell EMC VMAX All Flash and PowerMax Performance Management and Architecture Overview
- Webinar, April 6, z/OS Infrastructure Operations: 2020’s Biggest Challenges and Trends for 2021 Part 2
- SHARE Virtual, March 2021
- Webinar, February 23, The Benefit of AIOps for storage infrastructure performance management
- Webinar, February 9, z/OS Infrastructure Operations: 2020’s Biggest Challenges and Trends for 2021
- Webinar, January 20, Dell/EMC XtremIO Performance Management and Architecture Overview
2020
- Webinar, December 15, How long is the line (and why)? Practical Applications of Queueing Theory
- Webinar, December 9, HDS VSP 5000 Series – Architecture and Performance Analysis
- Webinar, November 18, “NetApp C-Mode Architecture & Performance Analysis 101“
- Webinar, November 17, “Transparency in z/OS Infrastructure Performance Analysis“
- Webinar, October 27, “HDS VSP G1500/F1500 Series – Architecture and Performance Analysis“
- Webinar, October 15, “Preparing for and Managing Peak Periods in 2020 and Beyond”
- SHARE Virtual, September 22 – October 1
- Webinar, September 22, “A Baker’s Dozen: 13 Ways to Improve Your SAN Management”
- zAcademy Webinar, September 17, Your Datacenter Under TFP: The New Rules of Measurement
- Webinar, August 18, “Pure Storage Performance and Capacity 101”
- Webinar, July 15, “HPE 3PAR Performance and Capacity 101”
- zAcademy Webinar, July 22, Tune your TS7700 Cache Capacity
- zAcademy Webinar, July 15, The Value of Automated z/OS Performance Change Detection
- zAcademy Webinar, July 8, Is a Sub-Capacity CPC the Right Move for You?
- zAcademy Webinar, July 1, Does IBM’s Recent Tailoring of Tailored Fit Pricing Make It a Better Fit for You?
- zAcademy Webinar, June 24, Life in the Fast Lane: zHyperlink
- zAcademy Webinar, June 17, Getting to Know Your WebSphere for z/OS Workload
- Webinar, June 16, “Infinidat InfiniBox Performance and Capacity 101”
- zAcademy Webinar, June 10, Boost the Value You Derive from MQ SMF Data through a Modern Approach
- zAcademy Webinar, June 3, Why did my job run so long? Understanding and applying z/OS Performance Concepts
- zAcademy Webinar, May 27, Value and Visibility into zERT Network Encryption Data
- zAcademy Webinar, May 20, The All-Flash datacenter: How come my I/O Response isn’t twice as fast?
- zAcademy Webinar, May 12, Lessons on Optimizing Processor Cache From z15 Upgrade Case Studies
- zAcademy Webinar, May 6, Boost the Value You Derive from CICS and Db2 SMF Data
- Webinar, May 5, “Storage Capacity Planning 101”
- zAcademy Webinar, April 29, Reining in HSM
- zAcademy Webinar, April 22, “What Am I Waiting For” is a basic performance session for anyone
- zAcademy Webinar, April 16, Imagine How Much You Can Learn from SMF Data
- Webinar, April 15, “SAN Fabric 102: Emerging Technologies, Performance Analysis, and Common Issues”
- Webinar, March 25, “z/OS Virtual Tape Infrastructure Availability Monitoring“
- Webinar, March 10, “SAN Fabric 101: Storage Area Network Trends and Fundamentals”
- Webinar, February 11, “Storage System 101: Architecture, History, Trends, and Predictions”
- Webinar, January 28, “2020 Vision into z/OS Infrastructure Operation and Availability “
2019
- Webinar, December 10, “What Star Trek Teaches Us About Modern Storage Infrastructure Management“
- GSE NL | November 21
- Webinar, November 14, “AIOps for Smarter CICS and Db2 SMF Performance Analysis“
- GSE UK | November 5 – 7, Whittlebury
- Webinar, October 29, “Gain Insight Into z/OS Network Security Usage and WebSphere Transactions“
- IDUG EMEA, October 20 – 24, Rotterdam
- Webinar, October 17, “Components of an Effective Storage Infrastructure Health Check“
- IBM Systems Technical University, October 7 – 11, Las Vegas, NV
- Webinar, October 2, “When (& When not) to Use Machine Learning for RMF/SMF Performance Analysis“
- Webinar, September 19, “Customer Experiences Saving MSU’s Through CPC Optimization“
- Webinar, August 29, “Top Performance Strategies for Black Friday, Cyber Monday, and other Peak Periods“
- Webinar, August 20, “How to Learn (almost anything) from RMF & SMF Data“
- SHARE, August 4-9, Pittsburgh, PA
- Webinar, July 16, “Black Friday in July? Assessing z/OS Infrastructure Performance Readiness“
- Webinar, June 27, “Best Practices in Storage Infrastructure Performance & Capacity Management“
- Webinar, June 25, “Modernize Db2 SMF Analysis with Smarter Algorithms”
- CIAB FEBRABAN, June 11-13, São Paulo, Brazil
- Webinar, May 30, “An Insider’s Guide to Tailored Fit Pricing for z/OS”
- IDUG Db2 Tech Conference, June 2-6, Charlotte, NC
- IBM Systems Technical University, May 20 – 24, Berlin, Germany
- IBM Systems Technical University, April 29 – May 3, Atlanta, GA
- Webinar, April 24, “Understanding and Analyzing IBM Spectrum Virtualize Replication”
- Webinar, April 25, “(Road) Rage Against the Machine: Understanding – and Dealing with – z14 Traffic Patterns”
- Southwest CMG, April 17, Coppell, TX
- Webinar, March 27, “Analysis and Monitoring of Db2 and CICS SMF Performance Data”
- SHARE, March 10-15, Phoenix, AZ
- Webinar, March 5, “Best Practices in 2019 for z/OS Application Infrastructure Availability”
- Webinar, February 28, “Predict Storage and Compute Risks Before They Impact Your Business”
- Webinar, February 12, “CICS & Db2 Performance Analytics Based on SMF Data”
- Webinar, January 31, “Best Practices for z/OS Application Infrastructure Availability in 2019”
2018
- Webinar, November 29, “CICS & Db2 Performance Analytics Based on SMF Data”
- Webinar, October 30, “RMF/SMF Analysis—Get Ahead of the Curve with Statistical Analysis”
- IBM Systems Technical University, October 8-12, Hollywood, FL
- Webinar, September 26, “Best Practices for Managing z/OS Virtual Tape Performance”
- Webinar, August 30, “zHyperLink: The Holy Grail of Mainframe I/O”
- SHARE, August 12, St. Louis, MO
- Webinar, July 24, “CICS & Db2 Performance Analytics Based on SMF Data”
- CMG Connecticut, May 11, Cromwell, CT
- Webinar, May 9, “Easy z/OS Application Performance Testing Services from the Infrastructure Perspective”
- IBM Systems Technical University, April 30, Orlando, FL
- Webinar, March 29, “Performance and Capacity Insights for your Outsourced Mainframe”
- Webinar, March 27, “Strategies for SAN Data Storage Infrastructure Predictability in 2018”
- VMware User Group UserCon, March 21, Toronto, Canada
- SHARE, March 11-15, Sacramento, CA
- Webinar, February 27, “2018 RMF/SMF Analytics – Status & Predictions”
- Webinar, Jan. 30, “2018 RMF/SMF Analytics – Status & Predictions”
2017
- Webinar, Dec. 7, “Achieving CPU (& MLC) Savings on z13 and z14 by Optimizing Processor Cache”
- Webinar, Nov. 30, End-to-End Storage Infrastructure Analytics with Topology Viewer
- IBM Z Technical University, November 13-17, Washington, D.C.
- CMG, November 6-9, New Orleans, LA
- Webinar, Nov. 1, “Predictive Analysis from RMF/SMF for Enhanced Performance & Capacity Planning”
- VMware User Group UserCon, October 26, Phoenix, Arizona
- VMware User Group UserCon, October 19, Atlanta, Georgia
- VMware User Group UserCon, October 10, Dallas, Texas
- Webinar, Oct. 4, “Predictive Intelligence from RMF/SMF for Enhanced Performance & Capacity Planning”
- Webinar, Sep. 27, “Agile z/OS Application Infrastructure Performance Testing for DevOps”
- Webinar, Sep. 14, “Modernize RMF/SMF Interpretation for Superior z/OS STORAGE Performance Management”
- Storage Strategy Days 2017, September 13-14, Ehningen, Germany
- Webinar, Aug. 31, “Bridging the z/OS Performance and Capacity Planning Skills Gap”
- SHARE, August 6-11, Providence, RI
- Webinar, July 19, “Modernize RMF/SMF Analysis for Superior z/OS Storage Infrastructure Management”
- Webinar, June 12, “Modernize z/OS Application Infrastructure Operations Analysis with RMF/SMF”
- IBM Systems Technical University, May 22 – 26, Orlando, Florida
- Webinar, May 22, “Modernize RMF/CMF & SMF Interpretation for Superior z/OS Systems Performance Management”
- GSE Nordic Conference 2017, May 2 – 4, Fornebu, Norway
- Webinar, April 26, “Achieving CPU (& MLC) Savings Through Optimizing Processor Cache”
- Webinar, April 25, “Restoring Data Storage Predictability”
- Webinar, March 21, “IntelliMagic Vision for z/OS Version 8.10”
- SHARE, March 5-10, San Jose, CA
- Webinar, February 1, “Beyond Capping: Significantly Reduce z13 MLC with Processor Cache Efficiency”