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Document Number SG24-5139-00

IBM Certification Study Guide AIX V4.3 System Support

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Edition Notice

Preface

• The Team That Wrote This Redbook
• Comments Welcome

Chapter 1. Certification Overview

• 1.1 IBM Certified Specialist - AIX V4.3 System Support
• 1.2 Certification Exam Objectives
• 1.3 Certification Education Courses
• 1.4 Education on CD: IBM AIX Essentials

Chapter 2. System Installation and Maintenance

• 2.1 New and Complete Overwrite Installation
• 2.2 Migration Installation
• 2.3 Preservation Installation
• 2.4 The lppchk Command, Verifying Installed Software
• 2.5 The smit.log File as the installp Command Output Log
• 2.6 Determining Maintenance Levels
• 2.7 Modification Update Using update_all from SMIT
  • 2.7.1 Downloading Maintenance Levels Using FixDist
  • 2.7.2 Invoking the SMIT update_all Fastpath
• 2.8 Finding a Fileset That Contains a Given Command
• 2.9 References
• 2.10 Quiz
  • 2.10.1 Answers
• 2.11 Exercises

Chapter 3. System Initialization and Boot

• 3.1 The /etc/inittab File
• 3.2 Initialization Customization and Problem Determination
  • 3.2.1 Using the bootlist Command
  • 3.2.2 Accessing a System That Will Not Boot
  • 3.2.3 Common Boot Time LEDs and Their Solution
• 3.3 References
• 3.4 Quiz
  • 3.4.1 Answers
• 3.5 Exercises

Chapter 4. Hardware Installation and Configuration Management

• 4.1 Finding Out about Your System
• 4.2 Adapter and Device Configuration
• 4.3 Displaying Installed Devices
• 4.4 Configuring New Devices
  • 4.4.1 PCI Device Configuration
  • 4.4.2 ISA Device Configuration
  • 4.4.3 128-Port Asynchronous Adapter Considerations
• 4.5 Adding a TTY Device
• 4.6 Adding a Tape Drive
• 4.7 References
• 4.8 Quiz
  • 4.8.1 Answers
• 4.9 Exercises

Chapter 5. Storage Management, LVM, and File Systems

• 5.1 Logical Volume Storage Concepts
  • 5.1.1 Limitations of Logical Volume Storage
• 5.2 Managing Physical Volumes
  • 5.2.1 Configuration of Physical Volume
  • 5.2.2 Making an Available Disk a Physical Volume
  • 5.2.3 Modifying Physical Volume Characteristics
  • 5.2.4 Removing Physical Volumes
  • 5.2.5 Listing Information about Physical Volumes
  • 5.2.6 Migrating the Contents of Physical Volume
• 5.3 Managing Volume Groups
  • 5.3.1 Adding a Volume Group
  • 5.3.2 Modifying Volume Group Characteristics
  • 5.3.3 Importing and Exporting a Volume Group
  • 5.3.4 Varying On and Varying Off Volume Groups
  • 5.3.5 Monitoring Volume Groups
  • 5.3.6 Reorganizing Volume Groups
  • 5.3.7 Synchronizing the Volume Group
  • 5.3.8 Creating a New Partition on a Disk That Already Has a Partition
  • 5.3.9 Creating a Volume Group Without Running chdev
• 5.4 Managing Logical Volumes
  • 5.4.1 Adding a Logical Volume
  • 5.4.2 Removing a Logical Volume
  • 5.4.3 Reducing the Size of Logical Volume
  • 5.4.4 Increasing the Size of Logical Volume
  • 5.4.5 Copying a Logical Volume
  • 5.4.6 Listing Logical Volumes
  • 5.4.7 Logical Volume Size
  • 5.4.8 Logical Volume Striping
• 5.5 Managing Journaled File Systems
  • 5.5.1 Characteristics of Journaled File System
  • 5.5.2 Creating a File System
  • 5.5.3 Mounting a File System
  • 5.5.4 Removing a File System
  • 5.5.5 Increasing the Size of a File System
  • 5.5.6 Checking the File System Consistency
  • 5.5.7 Initializing the JFS Log Device
  • 5.5.8 How to Add Additional JFS Logs
• 5.6 Troubleshooting File System Problems
  • 5.6.1 Recovering from Super Block Errors
  • 5.6.2 Cannot Unmount File Systems
  • 5.6.3 When the df Command Hangs
  • 5.6.4 Deleting an Application File That Is Locked
• 5.7 Summary of LVM Commands
  • 5.7.1 PV Commands
  • 5.7.2 VG Commands
  • 5.7.3 LV Commands
  • 5.7.4 File System Commands
• 5.8 References
• 5.9 Quiz
  • 5.9.1 Answers
• 5.10 Exercises

Chapter 6. SMIT Fast Path Commands

• 6.1 Summary of SMIT Fast Path Commands
• 6.2 References
• 6.3 Quiz
  • 6.3.1 Answers
• 6.4 Exercises

Chapter 7. Problem Determination

• 7.1 Software Service Aids Package
• 7.2 Error Logging Facility
  • 7.2.1 Managing Error Log
• 7.3 System Dump Facility
  • 7.3.1 Managing a Dump Device
  • 7.3.2 System Initiated Dump
  • 7.3.3 User Initiated Dump
• 7.4 References
• 7.5 Quiz
  • 7.5.1 Answers
• 7.6 Exercises

Chapter 8. System Backup and Restore

• 8.1 Saving Information
• 8.2 The Data Layout of a mksysb Tape
  • 8.2.1 BOS Boot Image
  • 8.2.2 mkinsttape Image
  • 8.2.3 Dummy TOC
  • 8.2.4 User Data
• 8.3 Verifying System Backups
  • 8.3.1 Using SMIT to Verify a Tape
  • 8.3.2 Using Restore to Verify a Tape
• 8.4 Saving User Data
  • 8.4.1 Block Size Determination
• 8.5 Restoring Information
• 8.6 References
• 8.7 Quiz
  • 8.7.1 Answers
• 8.8 Exercises

Chapter 9. System Performance

• 9.1 Using the vmstat Command Tool
  • 9.1.1 Paging Activity Statistics
  • 9.1.2 CPU Statistics
  • 9.1.3 Determine the I/O for Persistent Storage
• 9.2 Using the iostat Command Tool
  • 9.2.1 CPU Statistics
  • 9.2.2 Disk Statistics
• 9.3 Paging Space Management
  • 9.3.1 Do You Need More Paging Space?
  • 9.3.2 Paging Space Tips
  • 9.3.3 Managing Default Paging Space (hd6)
  • 9.3.4 References
• 9.4 Quiz
  • 9.4.1 Answers
• 9.5 Exercises

Chapter 10. Networking

• 10.1 The DISPLAY Environment Variable
  • 10.1.1 Failing to Start an X-Windows Application
  • 10.1.2 Setting Up the DISPLAY Environment Variable
• 10.2 Security Consideration with System and TCP/IP Files
  • 10.2.1 The $HOME/.netrc File
  • 10.2.2 The $HOME/.forward File
  • 10.2.3 The /etc/hosts.equiv File
  • 10.2.4 The $HOME/.rhosts File
• 10.3 Removing a Network Adapter
• 10.4 Enabling IP Packets To Be Forwarded
• 10.5 Changing the Primary Name Server
• 10.6 When a Domain Name Server is Unreachable
• 10.7 The /etc/netsvc.conf File
• 10.8 The NSORDER Environment Variable
• 10.9 The ARP Cache
• 10.10 Changing the State of the Token-Ring Network Interface
• 10.11 The Default Route
• 10.12 Problem With Incorrect Subnet Mask
• 10.13 Value of thewall on Network Traffic
  • 10.13.1 Setting the Value of thewall to Raise the Number of mbufs
  • 10.13.2 Tuning Parameters for Buffer Pools and Others
• 10.14 Errors when inetd is Not Started
• 10.15 Network Hardware Configuration Problems
• 10.16 References
• 10.17 Quiz
  • 10.17.1 Answers
• 10.18 Exercises

Chapter 11. Printers

• 11.1 The Printer Colon Files
• 11.2 Remote Printing
  • 11.2.1 The /etc/hosts.lpd File
  • 11.2.2 The /etc/hosts.equiv File
  • 11.2.3 Controlling the lpd Daemon
• 11.3 Virtual Printers
  • 11.3.1 Files Used with Virtual Printers
  • 11.3.2 Key Commands
  • 11.3.3 Creating a Virtual Printer
• 11.4 Troubleshooting Remote Printing Problems
  • 11.4.1 0781-374 Error Message
  • 11.4.2 0781-202 Error Message
  • 11.4.3 How to Run a Remote Trace
• 11.5 Filters
  • 11.5.1 AIX Filters
• 11.6 Clearing and Preventing Queue Hangs in AIX
• 11.7 Flushing a Print Job
  • 11.7.1 Summary
  • 11.7.2 qdaemon Will Not Start
  • 11.7.3 Cannot Add Printer Queue
• 11.8 Setting Default Printers
• 11.9 References
• 11.10 Quiz
  • 11.10.1 Answers
• 11.11 Exercises

Chapter 12. Asynchronous Point-to-Point Protocol

• 12.1 Configuring Asynchronous PPP Server
• 12.2 Setting Up the PPP Control Link
• 12.3 Assigning the PPP IP Addresses
• 12.4 Adding a PPP Login User
  • 12.4.1 Adding the TTY Port
  • 12.4.2 Configure the Dial-In Modem
  • 12.4.3 Start the PPP Control Daemon
• 12.5 AIX PPP Client
  • 12.5.1 Configuring an AIX PPP Client
  • 12.5.2 Create the Chat Dialog
• 12.6 References
• 12.7 Quiz
  • 12.7.1 Answers
• 12.8 Exercises

Chapter 13. Network Installation Management

• 13.1 Debugging NIM Boot Images
  • 13.1.1 Establishing Network Communication
  • 13.1.2 Obtaining the Boot Image from the Server
  • 13.1.3 Running the Boot Image on the Client
• 13.2 Error 611 - Network Error
• 13.3 The NIM Command
• 13.4 The showmount Command
• 13.5 Quiz
  • 13.5.1 Answers
• 13.6 Exercises

Chapter 14. The cron Daemon and crontab

• 14.1 The at Command
  • 14.1.1 Location of the Spool Area Directory for the at Command
• 14.2 Location of crontab Files
• 14.3 Verifying Job Runs
• 14.4 Crontab File Record Format
• 14.5 Scheduling Run
• 14.6 Allowing Users to Use the crontab Command
• 14.7 Creating and Updating the Crontab File
• 14.8 Verifying Job Schedules
• 14.9 Checking the Time of the Crontab File
• 14.10 Removing the Crontab File
• 14.11 Using Crontab to Append a User's Cron File
• 14.12 References
• 14.13 Quiz
  • 14.13.1 Answers
• 14.14 Exercises

Chapter 15. Editing and Viewing Files and Strings

• 15.1 The vi File Editor
  • 15.1.1 vi Editor Limitations
  • 15.1.2 vi Editing Modes
  • 15.1.3 The vi Command Flags
  • 15.1.4 vi Editor Subcommands
• 15.2 Editing a File Using the vi Editor
  • 15.2.1 Inserting Text Using the vi Editor
  • 15.2.2 Changing Text Using the vi Editor
• 15.3 Viewing Files and String Settings
  • 15.3.1 Using the pg Command to View Files
  • 15.3.2 Using the view Command to View Files
  • 15.3.3 Using the echo Command
  • 15.3.4 Using the file Command to Determine a File Type
  • 15.3.5 Using the strings Command in Object or Binary Files
• 15.4 Quiz
  • 15.4.1 Answers
• 15.5 Exercises

Chapter 16. The Shell, and Shell Scripts

• 16.1 The Korn Shell or POSIX Shell
• 16.2 Bourne Shell
• 16.3 C Shell
• 16.4 Restricted Shell
• 16.5 Setting the Shell Environment
  • 16.5.1 The /etc/profile File
  • 16.5.2 The /etc/environment File
  • 16.5.3 The .profile File
  • 16.5.4 The .env File
  • 16.5.5 Changing Your Environment from the Command Line
• 16.6 Creating and Running a Shell Script
  • 16.6.1 General Script Remarks
  • 16.6.2 Creating a Script
• 16.7 Quiz
  • 16.7.1 Answers
• 16.8 Exercises

Appendix A. Special Notices

Appendix B. Related Publications

• International Technical Support Organization Publications
• Redbooks on CD-ROMs
• Other Publications
  • Limited Internet Resources

How to Get ITSO Redbooks

• C.1 How IBM Employees Can Get ITSO Redbooks
• C.2 How Customers Can Get ITSO Redbooks
• C.3 IBM Redbook Order Form

List of Abbreviations

Index

ITSO Redbook Evaluation

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