AIX Docs

AIX 6 Basics

noreply@blogger.com (DBA ORACLE) — Wed, 07 Jul 2010 17:44:00 +0000

IBM Education Advantage Program eligibility:

* Yes - IBM Education Pack - Online Account

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Audience

This basic course is intended for anyone who requires basic AIX/UNIX user skills to be able to work in an AIX environment.

This course is also a prerequisite for many courses in the AIX Systems Administration curriculum.

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Prerequisites

You should be familiar with:

* basic information technology (IT) concepts and the role of an operating system

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Skills taught

* Log in to an AIX system and set a user password
* Use AIX online documentation
* Manage AIX files and directories
* Describe the purpose of the shell
* Use the vi editor
* Execute common AIX commands and manage AIX processes
* Customize the working environment
* Use common AIX utilities
* Write simple shell scripts
* Use the AIXWindows Environment
* Use the Common Desktop Environment

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Course outline

Day 1

* Unit 1 - Introduction to AIX
* Unit 2 - Using the System
* Exercise 1 - Using the System
* Unit 3 - AIX Documentation
* Exercise 2 - AIX Documentation
* Unit 4 - Files and Directories
* Exercise 3 - Files and Directories
* Unit 5 - Using Files
* Exercise 4 - Using Files

Day 2

* Unit 6 - File Permissions
* Exercise 5 - File Permissions
* Unit 7 - The vi Editor
* Exercise 6 - The vi Editor
* Unit 8 - Shell Basics
* Exercise 7 - Shell Basics
* Unit 9 - Using Shell Variables
* Exercise 8 - Using Shell Variables

Day 3

* Unit 10 - Processes
* Unit 11 - Controlling Processes
* Exercise 9 - Controlling Processes
* Unit 12 - Customizing the User Environment
* Exercise 10 - Customizing the User Environment
* Unit 13 - AIX Utilities, Part I
* Exercise 11 - AIX Utilities (1)
* Unit 13 - AIX Utilities, Part I (Continued)
* Exercise 12 - AIX Utilities (2)
* Unit 14 - AIX Utilities, Part II
* Exercise 13 - AIX Utilities (3)

Day 4

* Unit 14 - AIX Utilities, Part II (Continued)
* Exercise 14 - AIX Utilities (4)
* Unit 15 - Additional Shell Features
* Exercise 15 - Additional Shell Features
* Unit 16 - The AIX Graphical User Interface

IBM AIX Enterprise Edition System Administration Guide

noreply@blogger.com (DBA ORACLE) — Wed, 07 Jul 2010 17:43:00 +0000

AIX Enterprise Edition includes all the features of AIX with additional management software that is designed to complement the features of AIX V6.1. AIX Enterprise Edition is designed to improve the manageability of a virtualized AIX environment. Potential benefits include:
- Improved service availability through access to relevant, real-time information about IT resources
- Enhanced operational efficiency though the visualization of the relationships of IT resources and applications
- Improved operational efficiency by centralizing monitoring and automating the response to service issues
- Better utilization of IT resources through consolidated views of virtualized resource usage
- Improved service availability through Live Application Mobility
- Simplified ordering of AIX and essential service management tools at an attractive price

Chapter 1. Introduction and overview
Chapter 2. Planning and sizing
Chapter 3. Installation and configuration
Chapter 4. Operations

AIX Version 6.1

noreply@blogger.com (DBA ORACLE) — Mon, 05 Jul 2010 19:38:00 +0000

Points forts

Système d’exploitation UNIX d’IBM de dernière génération, éprouvé, évolutif et basé sur les standards ouverts
Fonctions de virtualisation, de sécurité, de disponibilité et de simplicité de gestion pour plus de flexibilité, fiabilité et disponibilité avec AIX 6
Système basé sur la technologie POWER et les fonctions de virtualisation d'IBM, gages de performances, d'un taux d'utilisation système et d’un rendement optimum. L'ensemble est pensé pour une administration simplifiée et un coût total réduit.
Disponible en trois éditions pour des possibilités et une flexibilité encore renforcées.

AIX, l'avenir d’ UNIX

Les entreprises cherchent toutes à optimiser leur retour sur investissement en technologies informatiques. Leur infrastructure informatique doit être suffisamment flexible pour s'adapter à l'évolution des besoins informatiques et suffisamment évolutive pour gérer des charges de travail en constante croissance – sans être plus complexe. De plus, elle doivent également intégrer des fonctions robustes de sécurité et de disponibilité continue tout en consommant moins d'électricité et en dégageant moins de chaleur.

Ces raisons parmi d'autres expliquent pourquoi un nombre grandissant d'entreprises choisissent d'utiliser le système d'exploitation AIX sur des systèmes IBM reposant sur l’architecture Power. L'évolutivité, les fonctions évoluées de virtualisation, la sécurité, la simplicité de gestion et la fiabilité éprouvées de ce système d'exploitation en font une solution idéale pour les entreprises désireuses de bâtir une infrastructure informatique optimale. AIX est le seul système d'exploitation à bénéficier des fruits des dizaines d'années qu'IBM a consacrées à l'innovation technologique pour accroître au maximum les performances et la fiabilité d'UNIX.

La dernière version d'AIX, la version 6.1, baptisée « AIX 6 », offre une compatibilité binaire avec les versions précédentes d'AIX, notamment AIX 5L et des versions antérieures. Autrement dit, les applications exécutées sur des versions antérieures pourront également être exécutées sur AIX 6 – nous vous le garantissons.¹ AIX 6 constitue un système d'exploitation UNIX basé sur les standards ouverts et conforme aux normes Single UNIX Specification Version 3 de The Open Group.

AIX 6 est compatible avec les systèmes à processeurs POWER4, PPC970 et POWER5, POWER6 ainsi qu'avec les systèmes à processeurs POWER7, les derniers-nés de la gamme POWER. La plupart de ses nouvelles fonctions sont supportées par les plates-formes POWER antérieures, toutefois, seuls les processeurs POWER6 et POWER7 permettent d'en tirer le meilleur parti. Le système d'exploitation AIX est destiné aux serveurs IBM des gammes Power, System p, System i, System p5, eServer p5, eServer pSeries et eServer i5, ainsi qu'aux lames IBM BladeCenter à processeurs Power et aux postes de travail IBM IntelliStation POWER.

Parmi les nouveautés apportées par cette version 6, citons de nouvelles approches de la virtualisation, notamment la possibilité de transférer les applications entre systèmes sans rupture de service, de nouvelles fonctions de sécurité, plus efficaces et simples à gérer, de nouvelles fonctions de disponibilité continue inspirées des mainframes IBM et quantité de fonctions conçues pour simplifier l'utilisation d'AIX et réduire les coûts de gestion inhérents. Cette nouvelle mouture d'AIX illustre la volonté d'IBM de moderniser sans cesse ses technologies UNIX afin d'offrir à ses utilisateurs de nouvelles possibilités. Elle est le fruit de l'évolution d'AIX, système UNIX destiné au PC RT et aux systèmes à architecture RISC (Reduced Instruction Set Computer)/6000 (RS/6000), amorcée à Austin au Texas il y a plus de 20 ans.

Aix archive

noreply@blogger.com (DBA ORACLE) — Mon, 05 Jul 2010 19:38:00 +0000

Background

A raw logical volume is a physical partition that is not directly controlled by
AIX and the file system. Usually it is for use with databases that need better
performance than they would normally get with file systems.

Whatever the reason for using a raw logical volume, you must remember that AIX
has the ability to allow a database program to use a raw logical volume for
storing data, but expects that database program or utilities for that program
to manage the data stored in that location. AIX data management tools are
designed for working at the file system level, which is one level above the
logical volume level.

WARNING: Please note that due to the nature and differences of the databases
available today, IBM does not guarantee that any data in a database (raw or
otherwise) will be recoverable using any AIX commands.

--------------------------------------------------------------------------------

Logical volume control block

Every AIX logical volume has a 512-byte block at the beginning of the LV called
the Logical Volume Control Block (LVCB). The LVCB keeps track of information in
the logical volume. Some database vendors have chosen to write over the LVCB and
use their own methods of keeping track of the information in the LV.

When using the AIX dd command for archiving and retrieving raw logical volumes,
it is important to know if your database vendor uses the AIX LVCB or writes over
it. This information is important and is referenced later in this document.

--------------------------------------------------------------------------------

dd limitations

The AIX dd command has some limitations which must be taken into consideration
prior to archiving a raw logical volume.

The dd command cannot span multiple tapes. You must be able to fit the entire
raw logical volume onto one tape. If you require multiple tapes, your only AIX
option for archiving a raw logical volume is to use SYSBACK 6000.

The dd command in AIX 3.2 and 4.1 cannot archive a single file (or logical
volume) greater than 2GB. In AIX 4.2, the dd command has been designed to archive
data greater than 2GB in size.

AIx Administration

noreply@blogger.com (DBA ORACLE) — Mon, 05 Jul 2010 19:37:00 +0000

Description of accounts

- root

Commonly called the superuser (UID 0), this is the account that system
administrators log into to perform system maintenance and problem determination.



- daemon

A user used to execute system server processes. This user only exists to own
these processes (and the associated files) and to guarantee that they execute
with appropriate file access permissions.


- bin

A second system account used primarily to break up owners of important system
directories and files from being solely owned by root and system. This account
typically owns the executable files for most user commands.


- sys

sys user owns the default mounting point for the Distributed File Service (DFS)
cache which is necessary before installation and configuration of DFS on a
client. /usr/sys directory can also be used to put install images.


- adm

The adm user in the /etc/passwd is basically responsible for two system
functions:

 1. ownership of diagnostic tools, as evidenced by the directory
    /usr/sbin/perf/diag_tool/

 2. accounting, as evidenced by System Accounting Directories:
 /usr/sbin/acct
 /usr/lib/acct
 /var/adm
 /var/adm/acct/fiscal
 /var/adm/acct/nite
 /var/adm/acct/sum


- guest

Many computer centers provide accounts for visitors to play games while they
wait for an appointment, or to allow them to use a modem or network connection
to contact their own computer. Typically, these accounts have names like open,
guest, or play.


- nobody

An account used by the Network File System (NFS) product, and to enable remote
printing nobody exists when a program needs to permit temporary root access to
root users. For example, before turning on Secure RPC or Secure NFS, check
/etc/public key on the master NIS server to see if every user has been assigned
a public key and a secret key. You can create an entry in the database for a
user by becoming the superuser and entering:

 newkey -u username

You can also create an entry in the database for the special user, nobody.
Users can now run the chkey program to create their own entries in the database.


- uucp

UUCP is a system for transferring files and electronic mail between UNIX
computers connected by telephone. When one computer dials to another computer,
it must log in. Instead of logging in as root, the remote computer logs in as
uucp. Electronic mail that is awaiting transmission to the remote machine is
stored in directories that are readable only by the uucp user so that other
users on the computer cannot read each other's personal mail.

IBM AIX Enterprise Edition System

noreply@blogger.com (DBA ORACLE) — Mon, 05 Jul 2010 19:35:00 +0000

This IBM® Redbooks® publication provides AIX® Systems Administrators a broad understanding of the new features and products that make up the AIX Enterprise Edition offering. It will help you design or create a solution to maximize efficiencies and help organizations get the most from their Power Systems™ platform.

AIX Enterprise Edition includes all the features of AIX with additional management software that is designed to complement the features of AIX V6.1. AIX Enterprise Edition is designed to improve the manageability of a virtualized AIX environment. Potential benefits include:
- Improved service availability through access to relevant, real-time information about IT resources
- Enhanced operational efficiency though the visualization of the relationships of IT resources and applications
- Improved operational efficiency by centralizing monitoring and automating the response to service issues
- Better utilization of IT resources through consolidated views of virtualized resource usage
- Improved service availability through Live Application Mobility
- Simplified ordering of AIX and essential service management tools at an attractive price
Table of contents

Chapter 1. Introduction and overview
Chapter 2. Planning and sizing
Chapter 3. Installation and configuration
Chapter 4. Operations
Others who downloaded this publication also downloaded

* IBM eServer Certification Study Guide - pSeries AIX System Administration, SG24-6191-00
* PowerVM Virtualization on IBM System p: Introduction and Configuration Fourth Edition, SG24-7940-03
* IBM Certification Study Guide eServer p5 and pSeries Administration and Support for AIX 5L Version 5.3, SG24-7199-00

AIX a été conçu pour IBM

noreply@blogger.com (DBA ORACLE) — Mon, 05 Jul 2010 19:34:00 +0000

AIX est le système d'exploitation de type UNIX d'IBM. AIX est l'acronyme de Advanced Interactive eXecutive, mais seul l'acronyme est utilisé.

AIX a été conçu pour IBM par INTERACTIVE Systems à partir de IN/ix basé sur Unix System V Release 2. La première version fut lancée en janvier 1986 avec l'ordinateur IBM RT-PC. Le système fut porté sur les ordinateurs IBM PS/2 et IBM System/370. En 1990, AIX version 3 sortit avec les IBM RS/6000. Suite à une alliance avec IBM, Bull a un contrat OEM avec IBM pour vendre les serveurs PowerPC et POWER utilisant AIX, ce qui en fait le premier client IBM de par le monde. Bull participe au développement d'AIX, ainsi que des serveurs le supportant (pSeries). Motorola, Harris, General Automation et Apple ont également supporté AIX. À long terme, il n'est pas improbable qu'il soit remplacé par GNU/Linux, désormais supporté par IBM.