Cheryl Watson's Tuning Letter

Real World Experiences with z16 Upgrades

In this reprint from Cheryl Watson’s Tuning Letter, Todd Havekost provides detailed information and insights from his analysis of seven upgrades from both z14 and z15 CPCs to z16s.

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Cheryl Watson's Tuning Letter

Benefits of Analysis Across SMF Data Types

No matter which z/OS subsystem you are primarily responsible for, this article will help you blur the boundaries between the SMF ‘silos’ for each product.

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Whitepaper Cheryl Watson's Tuning Letter

Using New XCF Metrics to Optimize XCF Buffer Use

Gain a better understanding of the latest XCF metrics and learn how they can help you align your sysplex.

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Whitepaper Cheryl Watson's Tuning Letter

XCF - A Reliable (But Often Overlooked) Component of Sysplex

Gain insights on things to watch out for when tuning and managing XCF and tips to optimize your sysplex.

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Whitepaper Cheryl Watson's Tuning Letter

Learning from SMF: Db2 Buffer Pools

Dive into the SMF type 100 records to see what insights they offer into Db2 buffer pools. This whitepaper contains valuable information for relative newbies and experienced hands alike.

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z/OS Health Insights, Ratings, and Thresholds with IntelliMagic Vision

Discover how to use z/OS Health Insights, how the rating mechanism works and how it can be customized in IntelliMagic Vision.

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Whitepaper Cheryl Watson's Tuning Letter

Db2 Statistics - They're Not Just for Buffer Pools

Discover key insights Db2 statistics data can provide for performance management other than tuning Buffer Pools.

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Whitepaper Cheryl Watson's Tuning Letter

zEDC Metrics Changes on z15 and z16 Processors

Learn how moving the compression function from PCIE-attached zEDC cards to the zEDC Accelerator has resulted in changes (reductions) in the metrics that are available.

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Whitepaper Cheryl Watson's Tuning Letter

How to Achieve Higher Availability and Lower Performance Costs with Asynchronous Db2 Lock Structure Duplexing

In this Cheryl Watson Tuning Letter Reprint, Todd Havekost and Frank Kyne detail the unexpected performance benefits gained after one site implemented Asynchronous duplexing.

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