Cheryl Watson’s Tuning Letter

2000 Tuning Letters

Access the 2000 Tuning Letter Downloads

No. 6 (32 pages)

Management Issues
S/390 News
  • DB2 Storage
  • RMF
  • WLM
  • OS/390 R10
  • 64-bit
  • ALS-1
  • Tidbits from IBM-Main
  • WSC Flashes
  • The Net
  • Pubs & APARs
Focus: Dynamic ISPF
  • Introduction
  • Standard ISPF
  • Dynamic ISPF
CICS Performance Tips
  • WLM Considerations
  • LE Changes for CICS
  • CICS & VSAM Tidbits
What’s New
  • IBM LSPRs
Cheryl’s List Blog Posts
  • Blog Entries
Our MIPS Versus Theirs
EXPO 2000 Trip Report
Q&A
  • WLM Questions
Supplement
  • November 2000 CPU Chart

No. 5 (56 pages)

Management Issues
S/390 News
  • Red Alerts
  • I/O Priority
  • Tidbits from IBM-Main
  • WSC Flashes
  • The Net
  • Pubs & APARs
Focus: VTS Measurements
  • Introduction
  • General Structure
  • Data Sources
  • Key Metrics
  • VTS Notes
Focus: eServers
  • EServers
  • ZSeries
  • z/OS
  • 64-bit Addressing
  • IBM License Manager
  • Kudos
  • Observations
What’s New
  • Linux Options
  • Amdahl
  • STSI and CUoD
Cheryl’s List Blog Posts
  • Blog Entries
Our MIPS Versus Theirs
EXPO 2000 Trip Report
Q & A
  • WLM Questions

No. 4 (40 pages)

Management Issues
S/390 News
  • SAS Corrupted File
  • High CPU/Cache
  • Tidbits from IBM-Main
  • WSC Flashes
  • The Net
  • Pubs & APARs
Focus: confighfs
  • Confighfs Command
  • Interpreting Statistics
What’s New?
  • OS/390 R10
  • WLM in R10
BoxScore
Focus: SHARE 7/00
  • Cheryl’s Hot Flashes
  • HFS Commands in R9
  • Parallel Sysplex
  • DB2 Buffer Pools
  • WSC Hot Topics
  • JES2 Performance
  • Misc. Notes
Cheryl’s List Blog Posts
  • Blog Entries
Q&A
  • UNIX Prompt
  • Finding SU/Sec
  • ROTS
CICS Performance Tips
  • CICS Signon
  • New Function for LE 

No. 3 (28 pages)

Management Issues
S/390 News
  • Capping Overhead–NOT!
  • Performance APAR
  • MVS Performance Class
  • RACF
  • WSC Flashes
  • The Net
  • Pubs & APARs
SMF Type 42 Subtype 6
Focus: What’s New
  • Linux on S/390
  • Architectural Level Set
  • OS/390 R9
  • OS/390 R10
CF Levels
Cheryl’s List Blog Posts
Q&A
  • ADABAS in Goal
  • Two Period TSO
  • After Goal Mode
  • Moving HFS Files

Update Sheet Issued 9/00

No. 2 (36 pages)

Management Issues
S/390 News
  • RMF
  • Parallel Sysplex
  • Easytrieve
  • COBOL
  • I/O Avoidance
  • Tidbits from IBM-Main
  • WSC Flashes
  • The Net
  • Pubs & APARs
SHARE Trip Report (3/00)
  • Recommended APARs
  • Parallel Sysplex
  • Hot Topics
  • Misc.
HFS Notes
  • I/O Avoidanced
UNIX Terminology
Parmlib Analysis
  • BPXPRMxx non-HFS
Cheryl’s List Blog Posts
Q & A
  • Scheduling Environments
  • MP Overhead
  • WLM Poor Response
  • LLA
  • Page Data Sets
Supplement
  • CPU Chart Update

No. 1 (56 pages)

A Note from Cheryl & Tom
Management Issues
S/390 News
  • Page Data Sets
  • Non-SMS HFS
  • Defrag
  • Shark
  • Easytrieve
  • TCP/IP APARs
  • WSC Flashes
  • The Net
  • Pubs & APARs
Introduction to HFS
  • The Importance of HFS
  • UNIX File System
  • OS/390 HFS
Focus: OS/390 UNIX HFS
  • Performance Points
  • HFS File Latching
  • HFS Global Buffering
  • HFS Deferred Writes
  • Monitoring HFS Buffers
Parmlib Analysis
  • BPXPRMxx HFS Parms
Cheryl’s List Blog Posts
Q&A
  • Capacity Planning
Supplement
  • CPU Chart Update
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