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Driving the Power of AIX
preview of book Driving the Power of AIX
text of book Driving the Power of AIX

Driving the Power of AIX

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Publisher: MC Press Online
Publication Date: October 2009
Subject: Computer: Information Technology
Number of Pages: 241

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About this title
Maximize your efforts toward effective performance tuning on AIX on IBM's Power Systems (IBM i, AS/400, iSeries, System i, AIX, and Linux). With detailed information on optimizing your CPU, memory, disk, and network I/O subsystems, along with data on both AIX 5.3 and AIX 6.1, the author gives detailed instructions on how to tune your system effectively, delivering the performance boost you desire. In addition to these topics, chapters on the new AIX 6.1, Linux, and Oracle running on IBM Power Systems are included.

Packed with real-world know-how from author Ken Milberga 20-year systems administration veteranthis book is intended for systems professionals who need to understand, monitor, and control the factors that affect AIX performance on their servers. It covers systems monitoring and performance tuning on all subsystems as well as time-tested tuning and analysis methodology. The monitoring sections discuss tools that will allow you to immediately gain a quick and dirty view of the health of your system.

Beyond the rules of tuning, the book contains best practices to give the administrator solid strategies for tuning methodology and tips based on years of in-the-trenches experience. It covers the tools that are available and the best ways to use them to collect historical data and analyze trends and results. It is, quite simply, a must-have resource for anybody working with AIX on IBM Power Systems.

With Driving the Power of AIX, you will:
  • Learn best practices from an International AIX Tuning Expert.
  • Discover specific steps for monitoring and tuning CPU, virtual memory, disk I/O, and network components.
  • Get plenty of tips and strategies for tuning Oracle and Linux.
  • Uncover a wealth of other information about AIX that will deliver the server performance boost you're looking for.
About author
Ken Milberg
Ken Milberg is the president and managing consultant of PowerTCO Solutions, a New York-based IBM Business Partner. He is also a technical editor for IBM Systems Magazine, Power Systems Edition and a frequent contributor of content for IBM developerWorks. Ken holds a B.S.in Computer and Information Science as well as an M.S. in Technology Management from the University of Maryland. He has consulted with many Global Fortune 400 companies and is a PMI-certified Project Management Professional (PMP) and an IBM Certified Advanced Technical Expert (CATE) System p. He also holds certifications in Solaris and HP-UX.

Contents
Contents

Foreword
Preface

SECTION I: INTRODUCTION
Chapter 1: Performance Tuning Methodology
Step 1. Establishing a Baseline
Step 2. Stress Testing and Monitoring
Step 3. Identifying the Bottleneck
Step 4. Tuning
Step 5. Repeat

Chapter 2: Introduction to AIX
Unix
AIX
AIX Market Share

Chapter 3: Introduction to POWER Architecture
POWER5
POWER6
Section I: Summary, Tips, and Quiz

SECTION II: CPU
Chapter 4: CPU: Introduction
Chapter 5: CPU: Monitoring
vmstat (Unix-generic)
sar (Unix-generic)
iostat (Unix-generic)
w (Unix-generic)
lparstat (AIX-specific)
mpstat (AIX-specific)
topas (AIX-specific)
nmon
Using nmon for Historical Analysis
ps (Unix-generic)
Tracing Tools
tprof
Timing Tools
time
timex

Chapter 6: CPU: Tuning
Process and Thread Management
nice
renice
ps
schedo
sched_R and sched_D
fixed_pri_global
timeslice
bindprocessor
smtctl
gprof

Section II: Summary, Tips, and Quiz

SECTION III: MEMORY
Chapter 7: Memory: Introduction
Virtual Memory Manager
Computational Memory
File Memory
Paging and Swapping
VMM Tuning Evolution

Chapter 8: Memory: Monitoring
vmstat (Unix-generic)
Virtual Memory Summary
sar (Unix-generic)
lsps (AIX-specific)
ps (Unix-generic)
svmon (AIX-specific)
Memory Leak

Chapter 9: Memory: Tuning
vmo
minperm, maxperm, maxclient, and lru_file_repage
minfree and maxfree
Page Space Allocation
How Much Paging Space?
Paging Space Tuning
Thrashing and Load Control
Memory Scanning and lrubucket
rmss

Section III: Summary, Tips, and Quiz

SECTION IV: DISK I/O
Chapter 10: Disk I/O: Introduction
Direct I/O
Concurrent I/O
Asynchronous I/O
Logical Volumes and Disk Placement: Intra- and Inter-Policy
Inter-Disk Policy
File Systems

Chapter 11: Disk I/O: Monitoring
sar
topas
Logical Volume Monitoring
AIX LVM Commands
filemon and fileplace
filemon
fileplace

Chapter 12: Disk I/O: Tuning
lvmo
ioo
JFS2 Tuning Options

Section IV: Summary, Tips, and Quiz

SECTION V: NETWORK I/O
Chapter 13: Network I/O: Introduction
Network I/O Overview
NFS
Media Speed
Network Subsystem Memory Management
Virtual and Shared Ethernet

Chapter 14: Network I/O: Monitoring
netpmon
Monitoring NFS
nfsstat
nfs4cl
netpmon and NFS
Monitoring Network Packets
iptrace, ipreport, and ipfilter
tcpdump

Chapter 15: Network I/O: Tuning
Name Resolution
Maximum Transfer Unit
Tuning: Client
Tuning: Server

Section V: Summary, Tips, and Quiz

SECTION VI: BONUS TOPICS
Chapter 16: AIX 6.1
Introduction
Memory
CPU
Disk I/O
JFS2
iSCSI
I/O Pacing
Asynchronous I/O
Network
NFS

Section VI: Chapter 16 Quiz

Chapter 17: Tuning AIX for Oracle
Memory
CPU
Asynchronous I/O Servers
Concurrent I/O
Oracle Tools
Statspack
Oracle Enterprise Manager

Section VI: Chapter 17 Quiz

Chapter 18: Linux on Power
Monitoring
Handy Linux Commands
Virtualization
Tuning

Section VI: Chapter 18 Quiz

Quiz Answers
Section I: Introduction
Section II: CPU
Section III: Memory
Section IV: Disk I/O
Section V: Network I/O
Section VI / Chapter 16: AIX 6.1
Section VI / Chapter 17: Tuning AIX for Oracle
Section VI / Chapter 18: Linux on Power
Reviews
Tuning tips are provided from many different angles. Clearly, the author has an understanding of how multi-faceted performance problems can be. I would recommend this book for those who want a methodology to follow for their AIX tuning.
— SUSAN SCHREITMUELLER
Distinguished Engineer, Member IBM Academy of Technology
Chief Technology Officer, STG-CEEMEA

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