Red Hat GNBD WITH GLOBAL FILE SYSTEM IN RHEL 4.5, GFS 6.1 Configuration And Administration Manual

Using GNBD with Global File

System in RHEL 4.5

Configuration and Administration

Using GNBD with Global File System in RHEL 4.5: Configura­tion and Administration

Copyright © 2007 Red Hat, Inc.
This book provides an overview on using Global Network Block Device (GNBD) with Red Hat

GFS.

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Table of Contents

Introduction ...............................................................................................................v

1. About This Guide ...........................................................................................v

2. Audience .......................................................................................................v

3. Software Versions ..........................................................................................v

4. Related Documentation ..................................................................................v

5. Document Conventions .................................................................................vi

1. Using GNBD with Red Hat GFS ..............................................................................1

2. Considerations for Using GNBD with Device-Mapper Multipath .................................2

1. Linux Page Caching .......................................................................................2

2. Fencing GNBD Server Nodes .........................................................................2

3. GNBD Driver and Command Usage ........................................................................3

1. Exporting a GNBD from a Server ....................................................................3

2. Importing a GNBD on a Client .........................................................................6

4. Running GFS on a GNBD Server Node ...................................................................7

Index ........................................................................................................................8

iv

Introduction

1. About This Guide

This book describes how to use Global Network Block Device (GNDB) with Global File System
(GFS), including information about device-mapper multipath, GNDB driver and command us­age, and running GFS on a GNBD server node.

2. Audience

This book is intended to be used by system administrators managing systems running the Linux
operating system. It requires familiarity with Red Hat Enterprise Linux and GFS file system ad­ministration.

3. Software Versions

Software Description

RHEL4 refers to RHEL4 and higher

GFS refers to GFS 6.1 and higher

Table 1. Software Versions

4. Related Documentation

For more information about using Red Hat Enterprise Linux, refer to the following resources:

• Red Hat Enterprise Linux Installation Guide — Provides information regarding installation of
Red Hat Enterprise Linux.

• Red Hat Enterprise Linux Introduction to System Administration — Provides introductory in­formation for new Red Hat Enterprise Linux system administrators.

• Red Hat Enterprise Linux System Administration Guide — Provides more detailed informa­tion about configuring Red Hat Enterprise Linux to suit your particular needs as a user.

• Red Hat Enterprise Linux Reference Guide — Provides detailed information suited for more
experienced users to reference when needed, as opposed to step-by-step instructions.

• Red Hat Enterprise Linux Security Guide — Details the planning and the tools involved in
creating a secured computing environment for the data center, workplace, and home.

For more information about Red Hat Cluster Suite for Red Hat Enterprise Linux, refer to the fol­lowing resources:

v