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Guide to High Availability: Configuring boot/root/swap

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Guide to High Availability: Configuring boot/root/swap

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About

Features

  • Provides detailed examples using specific pieces of hardware and software—Although the high-availability information can be applied to other parts of the computer product line.

Description

  • Copyright 2000
  • Dimensions: 7 X 9-1/4
  • Pages: 103
  • Edition: 1st
  • Book
  • ISBN-10: 0-13-016306-6
  • ISBN-13: 978-0-13-016306-6


1630F-3

Take the "reboot" out of boot disk recovery

Configuring Sun StorEdge A5000 and Solstice DiskSuite™, step by step

Mirroring, hot relocation, recovery, Unipak, and much more

Guide to High Availability: Configuring boot/root/swap focuses on the system disk, providing configuration and recovery details for all Sun Servers. This book provides a cookbook approach to ensuring system disk availability. In keeping with the goals of simplicity and flexibility, the end result is solutions that scale from the smallest to the largest configurations.

Sample Content

Downloadable Sample Chapter

Click here for a sample chapter for this book: 0130163066.pdf

Table of Contents



1. Mirroring with the Sun StorEdge A5000 Subsystem and Solstice DiskSuite Software.

Hardware Configuration. Software Configuration. Creating Initial State Database Replicas. Detecting and Recovering from a Disk Failure.



2. Mirroring with the Sun StorEdge A5000 Subsystem and the Sun Enterprise Volume Manager Software.

Configuring the SEVM Software. Recovery. Adding Hot Relocation.



3. Sun StorEdge MultiPack or UniPack as a Solution.

Hardware Configuration. Software Configuration. Recovery. Upgrading the Solaris Operating Environment.



4. Alternative Boot Solutions.

Alternate Pathing and Sun Enterprise Volume Manager. Hardware Configuration. Software Configuration.



Appendix: Using the Command Line.

Setup. Recovery.



Index.

Preface

Preface

The concept of high availability can be applied to all aspects of a computer system. This book applies that concept to the system disk, which includes boot, root, and swap, using a subset of the hardware and all the software solutions that Sun Microsystems? offers today. Although this book provides detailed examples, using specific pieces of hardware and software, the high-availability information can be extended to other parts of the computer product line. For example, this book specifically covers the Sun StorEdge? A5000 subsystem, Sun StorEdge UniPack and MultiPack external desktop storage systems, Sun Enterprise 4000 and 5000 servers, and the Sun Ultra? 2 workstation. However, the concepts in this book are applicable to the Sun Enterprise 3000 to 6000 server line, as well as the Sun Enterprise 250 and 450 servers (which make use of multiple internal disks), and all Sun StorEdge subsystems that fit the criteria of hot-swappability. These concepts are not applicable to subsystems whose sole feature is Raid 5 functionality. If a piece of equipment has the same characteristics as the systems in this book (for example hot-swappablility), you can apply to it the concepts discussed in this book.

Sun BluePrints Program

The mission of Sun BluePrints? Program is to empower Sun customers with the technical knowledge required to implement reliable, available, extensible, and secure information systems within the data center using Sun products. Sun BluePrints Program is managed by the Enterprise Engineering Group. This group provides a framework to identify, develop, and distribute best practices information that applies across the Sun product line. Technical subject matter experts in various areas contribute to the program and focus on the scope and usefulness of the information.

The Enterprise Engineering Group is the primary provider of the technical content of Sun BluePrints Program that includes books, guides, and online articles. Through these vehicles, Sun can provide guidance, installation and implementation experiences, real-life scenarios, and late-breaking technical information.

The bimonthly electronic magazine, Sun BluePrints OnLine, is located on the Web at http://www.sun.com/blueprints. To be notified about updates to Sun BluePrints Program, please register yourself on this site.

About This Book

Guide to High Availability: Configuring boot/root/swap provides configuration and recovery information for Sun servers. This book provides a cookbook approach for a variety of solutions that ensure system disk availability. Each chapter includes both hardware and software high availability solutions.

The philosophy of this book is that it is possible to achieve 100 percent uptime for the system boot disk. If the system disk is properly configured and its disk is hot-swappable, the server does not have to be rebooted when the system disk fails. This book tries to adhere strictly to the definition of high availability that allows a system to keep operating even with a failure.

Although this book does not cover every product and every configuration in detail, it provides enough information so that you can extrapolate the procedures to create the best solution for your particular server or disk. Who Should Use This Book

This book is intended for system engineers responsible for configuring a Sun server with a high availability requirement for the system disk. It uses an explicit, step-by-step approach, allowing you to have all the required information in one document. It covers a specific area of hardware and software configuration; for in-depth information on a particular component, consult the user manual for that product.

How This Book Is Organized

Chapter 1 "Mirroring with the Sun StorEdge A5000 Subsystem and Solstice DiskSuite Software" is a recipe for mirroring your system disk using Solstice DiskSuiteTM software and the Sun StorEdge A5000 system. It contains a specific example of configuration and one recovery scenario.

Chapter 2 "Mirroring with the Sun StorEdge A5000 Subsystem and the Sun Enterprise Volume Manager Software" is a recipe for mirroring your system disk using Sun Enterprise Volume ManagerTM and the Sun StorEdge A5000 system. It contains a specific configuration example and one recovery example. This recovery example is different from the example presented in Chapter 1.

Chapter 3 "Sun StorEdge MultiPack or UniPack as a Solution" is a recipe for mirroring your system disk using the Sun StorEdge MultiPack or UniPack.

Chapter 4 "Alternative Boot Solutions" provides the steps that enable you to configure your boot disk to use alternate pathing in conjunction with Sun Enterprise Volume Manager software.

Appendix A "Using the Command Line" provides command-line options that correspond to the GUI steps used in each chapter. Related Books

For more information on related topics, see the following books:

  • Sun Enterprise Volume Manager 2.5 System Administrator's Guide (PN 805-1607-10)
  • Solstice DiskSuite 4.1 User's Guide (PN 802-4215)
  • Sun Enterprise Server Alternate Pathing 2.1 User's Guide (PN 805-3532-10)
  • luxadm Manual Page
Typographic Conventions
Table 1-1  Typographic Conventions
Typeface Meaning Examples
AaBbCc123 The names of commands, files, and directories; on-screen computer output Edit your .login file.
Use ls -a to list all files.
% You have mail.
AaBbCc123 What you type, when contrasted with on-screen computer output % su
Password:
AaBbCc123 Book titles, new words or terms, words to be emphasizedRead Chapter 6 in the User's Guide.
These are called class options.
You must be superuser to do this.
Command-line variable; replace with a real name or value To delete a file, type rm filename.
Shell Prompts
TABLE 1-2  Shell Prompts
Shell Prompt
C shell machine_name%
C shell superuser machine_name#
Bourne shell and Korn shell $
Bourne shell and Korn shell superuser #

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