- An EPS Seminar -
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Hardcopy of Abstract and Outline:
Seminar Abstract and Outline
Audience:
This 4-1/2-day seminar is designed for those responsible for performance measurements, analysis, and tuning their installation's z/OS systems, sysplexes, and I/O subsystems. You will leave the seminar with a basic performance review of your DASD I/O subsystem, processor, storage, and workload analysis.
The seminar contents are kept up-to date to take into account new z/OS concepts such as specialty processors (zIIPs, zAAPs, ICFs, etc.), zSeries processor enhancements, LPAR considerations, MIDAW, and more.
Please do not hesitate to contact Peter Enrico if you have any questions regarding this seminar or any other.
A Week of Reviewing Your Own Data!
Prior to class we instruct you on what data to bring to class from your own systems. Then, while in class, you will also be spending a week doing an actual basic system performance Health Check® using the data you supplied. So if you have not done a basic Health Check® in a while, or have some performance nagging questions, this is a perfect opportunity for combined instruction, time doing analysis, and an opportunity to get input and recommendations from two leading S/390 and zArchitecture performance experts – Peter Enrico and Tom Beretvas.
The following information can be found on this page:
Dates and Locations
Instructors
Seminar Abstract
This seminar is for you...
Prerequisites
Seminar Highlights
Seminar Objectives
Seminar Outline
Seminar Instructors:
Peter Enrico Tom Beretvas [
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Seminar Abstract:
Are you new to the z/OS performance management field? Or do you want to brush up on your monitoring, analysis, and tuning skills? Does your z/OS system need a performance check-up? Do you need to know how to establish a practical performance management program for your z/OS environment?
Two experienced z/OS performance experts, Peter Enrico and Tom Beretvas, both with long IBM affiliations, will teach you practical z/OS performance management and tuning skills. You will learn how to identify performance problems, whether originating from z/OS system setup or excessive resource consumption. You will receive detailed explanations on how to interpret performance reports and how to remedy bad performance situations.
Consider this week long seminar as being dedicated to analyzing your system performance with input and recommendations from two performance experts - Peter and Tom.
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This seminar is for you…
- if you want to perform a performance Health Check® on your z/OS system, sysplex, or I/O subsystem
- if you are an experienced performance analyst, but want the latest performance management information and advice
- if you are a novice performance analyst, or new to the field of z/OS, and need to learn how to effectively manage the performance of your z/OS systems and I/O subsystems.
- if you are already an z/OS generalist and are looking to brush up on your z/OS performance measurement, monitoring, analysis, and tuning skills
- If you are interested in some of the newest technologies such as MIDAW, specialty processors such as zIIPs and zAAPs, recent enhancements to WLM, processor storage, DASD I/O subsystem, and zSeries processors.
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Prerequisites:
A basic understanding of z/OS, RMF, workload manager, and parallel sysplex is assumed.
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Seminar Highlights:
- Optionally, your individual system performance reports can be evaluated and will include a written recommendation report. This service is the equivalent of an expert reviewing your installation data and providing a detailed explanation.
- You will learn to identify performance problems, whether originating from the z/OS system setup parameters or from excessive resource consumption.
- Detailed explanations on how to interpret performance reports and how to remedy bad performance situations
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Seminar Objectives:
This 'back to basics' seminar is designed to provide the attendee with a fresh outlook on the performance management of their z/OS systems, sysplexes, and I/O subsystems. It is designed to guide you in learning the basic concepts of z/OS performance management by teaching you a step by step approach to z/OS performance tuning. You will learn how to analyze RMF reports and various z/OS parmlib members. You will learn performance management of your I/O subsystem, Workload Manager service definition, and basic z/OS tuning.
The strength of this seminar not only comes from the information learned, but from the performance analysis you can perform on your own data during the seminar week. All past seminar attendees found tuning opportunities as a result of the analysis done on their data during the seminar week.
Each student is strongly encouraged to bring RMF or CMF measurement data and parmlib examples from their installation. (Data should be available in both printed and machine-readable form, and on enrollment you will receive detailed instructions.) Therefore analysis and seminar exercises will make use of this data.
Both Peter and Tom will be available to help review the data, to answer questions, and provide expert feedback.
You can think of this as a workweek that you've scheduled specifically to perform a performance and capacity Health Check® of your system, sysplex, and I/O subsystem.
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Seminar Outline:
z/OS Performance Overview
- Diagnosing a performance problem: The First Steps
- A top-down approach to z/OS measurement, monitoring, and tuning
z/OS Performance (Length: 2.5 days)
- Throughout the seminar - Examining your own system and processor performance data
- System performance summaries
- Processor and LPAR summaries
- System CPU, Storage, and Workload characterization and summaries
- Evaluating WLM goals and importance levels for correctness
- • Analyzing and tuning processor and LPAR activity
- LPAR concepts including IRD, COD, ,MSUs, etc.
- Understanding and using processor and LPAR performance measurements
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- LPAR performance considerations (including short engines)
- The new ways of evaluating processor capacit
- Workload Manager for Correctness
(For advanced WLM please note our WLM Performance and Re-evaluations of Goals class.)
- An advanced introduction
- Understanding WLM enclaves and Application Environments
- Understanding workload activity measurements
- Performing a goal mode checkup for correctness
I/O Performance (Length: 2 days)
- Introduction to DASD architecture:
- Basic DASD structure - CKD architecture
- Anatomy of an I/O
- Two-stage storage processors
- I/O Performance analysis: an introduction
- Numeric concepts and calculations
- Storage processor technology
- Evolution
- RAID technologies
- Remote copy facilities
- Commonality and differences between the storage processors
- FICON channels – Overview, performance considerations, and recommendations
- MIDAW – Overview, performance considerations, and recommendations
- DASD RMF
- The reports and interpretation
- What is "Interesting DASD"
- Use of RMF spreadsheet reporter
- Tuning your DASD storage subsystem response time equations
- The need for tuning and frequent tuning situations
- Case study using RMF spreadsheet reporter
- Examining YOUR DASD I/O Subsystem performance
- Multi-system analysis, apparent bottlenecks
- Logical Volume and control unit analysis
- Digging further
- Analyzing and tuning processor storage activity
- Does storage matter any more?
- Understanding 64-bit
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