Preface

The Sun Cluster Concepts Guide for Solaris OS contains conceptual and reference information about the Sun^TM Cluster product on both SPARC® and x86 based systems.

Note –

This Sun Cluster release supports systems that use the SPARC and x86 families of processor architectures: UltraSPARC, SPARC64, and AMD64. In this document, the label x86 refers to systems that use the AMD64 family of processor architectures.

Who Should Use This Book

This document is intended for the following audiences:

Service providers who install and service cluster hardware
System administrators who install, configure, and administer Sun Cluster software
Application developers who develop failover and scalable services for applications that are not currently included with the Sun Cluster product

To understand the concepts that are described in this book, you need to be familiar with the Solaris Operating System and also have expertise with the volume manager software that you can use with the Sun Cluster product.

Before reading this document, you need to have already determined your system requirements and purchased the equipment and software that you need. The Sun Cluster Data Services Planning and Administration Guide for Solaris OS contains information about how to plan, install, set up, and use the Sun Cluster software.

How This Book Is Organized

The Sun Cluster Concepts Guide for Solaris OS contains the following chapters:

Chapter 1, Introduction and Overview provides an overview of the overall concepts that you need to know about Sun Cluster.

Chapter 2, Key Concepts for Hardware Service Providers describes the concepts with which hardware service providers need to be familiar. These concepts can help service providers understand the relationships between hardware components. These concepts can also help service providers and cluster administrators better understand how to install, configure, and administer cluster software and hardware.

Chapter 3, Key Concepts for System Administrators and Application Developers describes the concepts with which system administrators and developers who intend to use the Sun Cluster application programming interface (API) need to know. Developers can use this API to turn a standard user application, such as a web browser or database into a highly available data service that can run in the Sun Cluster environment.

Chapter 4, Frequently Asked Questions provides answers to frequently asked questions about the Sun Cluster product.

Getting Help

If you have problems installing or using the Sun Cluster software, contact your service provider and provide the following information:

Your name and email address (if available)
Your company name, address, and phone number
The model and serial numbers of your systems
The release number of the operating system (for example, the Solaris 10 OS)
The release number of Sun Cluster software (for example, 3.2)

Use the following commands to gather information about your systems for your service provider.

Command	Function
`prtconf -v`	Displays the size of the system memory and reports information about peripheral devices
`psrinfo -v`	Displays information about processors
`showrev -p`	Reports which patches are installed
SPARC: `prtdiag -v`	Displays system diagnostic information
`/usr/cluster/bin/clnode show-rev`	Displays Sun Cluster release and package version information

Also have available the contents of the /var/adm/messages file.

Documentation, Support, and Training

The Sun web site provides information about the following additional resources:

Typographic Conventions

The following table describes the typographic conventions that are used in this book.

Table P–1 Typographic Conventions


Typeface	Meaning	Example
`AaBbCc123`	The names of commands, files, and directories, and onscreen computer output	Edit your `.login` file. Use `ls -a` to list all files. `machine_name% you have mail.`
`AaBbCc123`	What you type, contrasted with onscreen computer output	`machine_name%` `su` `Password:`
`aabbcc123`	Placeholder: replace with a real name or value	The command to remove a file is `rm` `filename`.
AaBbCc123	Book titles, new terms, and terms to be emphasized	Read Chapter 6 in the User's Guide. A cache is a copy that is stored locally. Do not save the file. Note: Some emphasized items appear bold online.

Shell Prompts in Command Examples

The following table shows the default UNIX® system prompt and superuser prompt for the C shell, Bourne shell, and Korn shell.

Table P–2 Shell Prompts


Shell	Prompt
C shell	`machine_name%`
C shell for superuser	`machine_name#`
Bourne shell and Korn shell	`$`
Bourne shell and Korn shell for superuser	`#`

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