Preface

Solstice^{^(TM)} High Availability^{^(TM)} 1.0 (Solstice HA) is a software product that supports specific dual-server hardware configurations. It is compatible with the Solaris^{^(TM)} 2.4 software environment. When configured properly, the hardware and software together provide highly available data services. Solstice HA depends upon the mirroring and diskset capabilities and other functionality provided by Solstice DiskSuite^{^(TM)} 4.0, which is shipped with Solstice High Availability.

The SPARCcluster High Availability Server Software Administration Guide documents the software procedures to be followed when adding or replacing hardware, along with general software administration procedures.

Who Should Use This Book

The information in this manual is for Sun representatives and senior system administrators who have experience performing complex administrative procedures. The instructions and discussions in this manual are complex and intended for a technically advanced audience.

The instructions in this manual and the SPARCcluster High Availability Software Planning and Installation Guide assume the reader has expertise with the Solstice DiskSuite product.

In some instances, the manual will tell you to contact your support person rather than provide instructions for fixing a problem. This is done to help ensure the availability of the data services running on your Solstice High Availability servers.

System administrators with at least six years of UNIX^{^(R)} system experience will find this book useful when performing administrative tasks on Solstice High Availability configurations. This manual should be used with the SPARCcluster High Availability Software Planning and Installation Guide and the other manuals that are listed in "Related Documentation" on page xv.

Note - Junior and less experienced system administrators should not attempt to install, configure, or administer Solstice HA configurations.

How This Book Is Organized

This document has 10 chapters and two appendixes, as follows:

Chapter 1, "Introduction," introduces Solstice HA administration.

Chapter 2, "Preparing for Administration," offers a high-level overview of the functionality included with Solstice HA. The interactions between the various parts of Solstice HA are also discussed.

Chapter 3, "Monitoring the Solstice HA Servers," discusses the use of the hastat(1M) and haload(1M) commands to monitor the behavior of the systems.

Chapter 4, "Hardware Replacement and Repair," provides the software instructions to use when replacing or repairing hardware components such as local disks and cables.

Chapter 5, "Adding Hardware," tells the software procedure to follow when adding additional hardware such as disks, controllers, SBus cards, and network connections to Solstice HA configurations.

Chapter 6, "HA-NFS Maintenance," explains the maintenance procedures you will follow when migrating data to HA-NFS, administering HA-NFS, and working with UFS logs.

Chapter 7, "HA-ORACLE Maintenance," explains the maintenance procedures you will follow when administering an HA-DBMS.

Chapter 8, "Metadevice and Diskset Administration," provides instructions for administering shared metadevices and explains metadevice actions that are not supported in Solstice HA configurations.

Chapter 9, "General Solstice HA Maintenance," gives instructions for general maintenance procedures such as restarting failed systems in Solstice HA configurations.

Chapter 10, "Using the Terminal Concentrator," tells how to use the terminal concentrator when performing administration of Solstice HA configurations.

Appendix A, "Error Messages," explains the status, error, and log messages displayed by Solstice HA.

Appendix B, "Man Pages," is a printed copy of the man pages for the Solstice HA product. Online versions of the man pages are included on the CD-ROM.

What Typographic Changes Mean

The following table describes the typographic changes used in this book.

Table P-1

Typeface or Symbol

Meaning

Example

AaBbCc123

The names of commands, files, and directories; on-screen computer output

Edit your .login file. Use ls -a to list all files. machine_name% You have mail.

AaBbCc123

What you type, contrasted with on-screen computer output


 machine_name% su   
 Password:

AaBbCc123

Command-line placeholder: replace with a real name or value

To delete a file, type rm filename.

AaBbCc123

Book titles, new words or terms, or words to be emphasized

Read Chapter 6 in User's Guide. These are called class options. You must be root to do this.

Shell Prompts in Command Examples

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

Table P-2

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