IBM Certification Study Guide - pSeries AIX System ...

1 Certification Study Guide - pSeries AIX System AdministrationChristian PruettKristian StricklandScott VetterDeveloped specifically for the purpose of preparing for AIX certificationMakes an excellent companion to classroom educationFor AIX professionalsIBM ^ Certification Study Guide - pSeries AIX System Administration December 2001 International Technical Support OrganizationSG24-6191-00 Copyright International Business Machines Corporation 2001. All rights to Government Users Documentation related to restricted rights Use, duplication or disclosure is subject torestrictions set forth in GSA ADP Schedule Contract with IBM Edition (December 2001)This edition applies to AIX 5L for POWER Version , program number 5765-E61 and subsequent releases running on an RS/6000 or pSeries server and is based on information available in October document was updated on December 6, 2004.

2 Comments may be addressed to:IBM Corporation, International Technical Support OrganizationDept. JN9B Building 003 Internal Zip 283411400 Burnet RoadAustin, Texas 78758-3493 When you send information to IBM, you grant IBM a non-exclusive right to use or distribute the information in any way it believes appropriate without incurring any obligation to Note! Before using this information and the product it supports, be sure to read the general information in Special notices on page 457. Copyright IBM Corp. 20013 ContentsFigures .. 13 Tabl es .. 17 Preface .. 19 The team that wrote this redbook.. 21 Special notice .. 21 IBM trademarks .. 22 Comments welcome .. 22 Chapter 1. Certification overview .. pSeries AIX System Administration (Test 191) .. Recommended prerequisites .. Registration for the Certification exam .. Certification exam objectives.

3 Certification education courses .. Education on CD-ROM: IBM AIX Essentials .. 9 Chapter 2. System startup problem handling.. Key commands used throughout the chapter .. Boot process .. Power on sequence, LEDs, and audio signals .. Useful commands.. Using the alog command .. Using the cfgmgr command .. Using the last command .. Using the bootlist command .. Using the uptime command .. Using the mpcfg command .. Using the shutdown command .. Troubleshooting boot problems .. Accessing a System that will not boot .. Problems with installation media .. Common boot time LED error codes and recovery actions .. Quiz .. Answers .. Exercises .. 37 Chapter 3. Hardware assistance .. 394 IBM ^ Certification Study Guide - pSeries AIX System Listing hardware devices .. Using the lsdev command .. Using the lspv command.

4 Configuring System devices .. System management services .. Hardware device compatibility .. Device configuration database .. Using the lsattr command .. Using SMIT with devices .. The System error log .. Using the errdemon command .. Using the errpt command .. Using the errlogger command .. Other error handling commands .. Diagnosing hardware problems .. The System log .. The syslogd configuration file .. The format of the configuration file .. Using the System log .. Setting up an ASCII terminal .. Quiz .. Answers .. Exercises .. 73 Chapter 4. System and software installation .. Base Operating System installation .. New and Complete Overwrite installation .. Migration installation .. Preservation installation .. Advanced Options installation .. Installation Package Set or Desktop.

5 Enable Trusted Computing Base (TCB) .. Enable 64-bit Kernel and JFS2 .. Configuration Assistant .. Understanding maintenance levels .. Software packaging .. Filesets .. Packages .. Licensed Program Products .. Bundles .. PTFs and APARs .. Installing optional software and service updates .. The installp command .. 86 Contents Using SMIT for software maintenance .. Maintaining optional software (applying updates) .. Listing the maintenance level of software .. Downloading fixes .. Displaying and updating installed software to the latest level .. Creating installation images on a hard disk .. Alternate disk installation .. Filesets required .. Alternate disk rootvg cloning .. Alternate mksysb install .. Quiz .. Answers .. Exercises .. 114 Chapter 5. Object Data Manager .. ODM commands.

6 Example of an object class for an ODM database .. Quiz .. Answers .. Exercises .. 120 Chapter 6. Storage management, LVM, and file systems .. Logical volume storage concepts .. Logical Volume Manager .. LVM configuration data .. Disk quorum .. Disk mirroring .. Managing physical volumes .. Configuration of a physical volume .. Making an available disk a physical volume .. Modifying physical volume characteristics .. Removing physical volumes .. Listing information about physical volumes.. Managing volume groups .. Listing volume group characteristics .. Adding a volume group .. Modifying volume group characteristics .. Importing and exporting a volume group.. Varying on and varying off a volume group.. Monitoring volume groups .. Reorganizing a volume group .. Synchronizing a volume group.

7 Managing logical volumes .. 1586 IBM ^ Certification Study Guide - pSeries AIX System Adding a logical volume .. Removing a logical volume .. Reducing the size of a logical volume .. Increasing the size of a logical volume .. Copying a logical volume .. Splitting copies of a logical volume .. Listing logical volumes .. Logical volume size .. Managing journaled file systems .. Characteristics of the journaled file System .. Creating a file System .. Mounting a file System .. Removing a file System .. Increasing the size of a file System .. Reducing the size of a file System .. Checking file System consistency .. Initializing the JFS log device .. Placement of the JFS log device.. Large file enabled file systems .. Troubleshooting file System problems .. Recovering from super block errors.

8 Cannot unmount file systems .. Summary of LVM commands .. PV commands .. VG commands .. LV commands .. File System commands .. Quiz .. Answers .. Exercises .. 195 Chapter 7. System paging space.. Paging space overview.. Paging space considerations .. Managing paging spaces .. Displaying paging space characteristics .. Adding and activating a paging space .. Changing attributes of a paging space .. Removing a paging space (except hd6) .. Managing default paging space (hd6) .. Quiz .. Answers .. Exercises .. 213 Contents 7 Chapter 8. System backup, restores, and availability .. The mksysb command .. The data layout of a mksysb tape .. Excluding file systems from a backup .. How to create a bootable System backup .. Using mksysb to back up a user volume group .. Backing up user information.

9 Backing up a single volume group .. How to backup the current directory .. Incremental backups .. Restoring information from backup media .. The tctl command .. How to restore a file .. How to restore a directory .. Errors on restore, incorrect block size.. Using the rmfs command .. Cloning your System .. Creating a duplicate copy of a diskette .. Duplicating a magnetic tape .. Special file notes for rmt .. High Availability Cluster Multi-Processing (HACMP) .. Quiz .. Answers .. Exercises .. 244 Chapter 9. System Resource Controller administration .. Starting the SRC .. The telinit command .. Restarting the SRC .. The startsrc command .. The syslogd daemon .. Starting the syslogd daemon.. syslog configuration file .. Recycling and refreshing the syslogd daemon .. Collecting syslog data from multiple systems.

10 Refreshing a daemon .. The cron daemon .. Crontab file record format .. Allowing access to the crontab command .. Housekeeping .. Quiz .. Answers .. Exercises .. 2608 IBM ^ Certification Study Guide - pSeries AIX System AdministrationChapter 10. Network administration .. Network startup at boot time .. Stopping and restarting TCP/IP daemons .. Stopping TCP/IP daemons using the / command .. Restarting TCP/IP daemons .. System boot without starting .. The inetd daemon .. Starting and refreshing inetd .. Subservers controlled by inetd .. The /etc/services file .. Stopping inetd .. The portmap daemon .. Internet addressing.. IP address format .. Binary to decimal conversion .. Internet address classes .. Special Internet addresses .. Subnetting .. Subnet masks .. Host name resolution.