Preface

The goal of this IBM® Redbook is to provide a technical reference for IT system administrators in organizations that are considering a migration from Sun™ Solaris™ to Linux®-based systems. We present a system administrator view of the technical differences and methods necessary to complete a successful migration to Linux-based systems, including covering the differences between major Linux distributions and IBM server and storage platforms.

This book is designed primarily to be a reference work for the experienced Sun Solaris 8 or 9 system administrator who will be working with Linux. It is not a Linux administration how-to book for beginning system administrators, but rather a guide for experienced administrators who need to translate a given Solaris system administration task to Linux.

We organize this book into four main parts.

In Part 1, "Background and planning" on page 1, we provide an introduction the topic and a general purpose planning guide for migrations.

Part 2, "System administration differences guide" on page 21 covers of a broad set of system administration topics. Chapters in this part focus on specific configuration management tasks and system functions for which a system administrator is typically responsible. In each chapter, we present the topics with the goal of identifying the major differences between how the tasks and functions are managed in Solaris and Linux. Wherever possible, we also highlight any differences in how those tasks are accomplished between Red Hat Enterprise Linux (RHEL) and SUSE Linux Enterprise Server (SLES). Because it would be impossible to provide a comprehensive reference about each topic in a single volume, we provide links to find more detailed information about the topics presented in each chapter.

In Part 3, "IBM eServer platforms" on page 235, we provide technical implementation details for installing and running Linux on IBM @server® platforms. We do not attempt to provide a complete reference for running Linux on each IBM platform. Instead, we focus on the Linux administration tasks that change due to hardware differences, such as boot configuration or virtualization functions. To accomplish this, we identify and explain how to leverage the additional industry-leading technologies in IBM @server xSeries®, IBM POWER™ technology (iSeries/pSeries®), and IBM @server zSeries® systems and IBM System z™ that make them very powerful and flexible platforms for hosting Linux-based solutions.

Part 4, "Appendixes" on page 343 provides quick reference tables for looking up Solaris to Linux task equivalencies, comparing system configuration files and locations, and using comparable commands (different name, comparable function) and common commands (same name and purpose). In Part 4, we also include a sample chapter from the following related publication:

Mendoza, et al., UNIX to Linux Porting: A Comprehensive Reference, Prentice Hall, 2006, ISBN 0131871099

Along with the sample chapter, we include link information so that you can order the UNIX to Linux Porting book at a discounted price.

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