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EVMS User Guide

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EVMS User Guide EVMS User Guide Joy Goodreau IBM Kylie Smith IBM Christine Lorenz IBM Copyright © 2003 IBM March 31, 2003 Special Notices The following terms are registered trademarks of International Business Machines corporation in the United States and/or other countries: AIX, OS/2, System/390. A full list of U.S. trademarks owned by IBM may be found at http://www.ibm.com/legal/copytrade.shtml. Intel is a trademark or registered trademark of Intel Corporation in the United States, other countries, or both. Windows is a trademark of Microsoft Corporation in the United States, other countries, or both. Linux is a trademark of Linus Torvalds. Other company, product, and service names may be trademarks or service marks of others. UNIX is a registered trademark of The Open Group in the United States and other countries. This document is provided "AS IS," with no express or implied warranties. Use the information in this document at your own risk. License Information This document may be reproduced or distributed in any form without prior permission provided the copyright notice is retained on all copies. Modified versions of this document may be freely distributed provided that they are clearly identified as such, and this copyright is included intact. EVMS User Guide Table of Contents Preface..................................................................................................................................................................1 Chapter 1. What is EVMS?................................................................................................................................3 1.1. Why choose EVMS?.........................................................................................................................3 1.2. The EVMS user interfaces................................................................................................................3 1.3. EVMS terminology...........................................................................................................................4 1.4. What makes EVMS so flexible?.......................................................................................................5 1.5. Plug−in layer definitions...................................................................................................................5 Chapter 2. Downloading and installing EVMS................................................................................................8 2.1. Preparing your system.......................................................................................................................8 2.1.1. Choosing capabilities..............................................................................................................8 2.1.2. Obtaining the Device Mapper and a kernel source tree..........................................................8 2.2. Downloading EVMS.........................................................................................................................8 2.3. Patching the kernel............................................................................................................................9 2.4. Configuring the kernel......................................................................................................................9 2.5. Building and installing the new kernel...........................................................................................11 2.6. Installing the cluster manager.........................................................................................................12 2.7. Installing the Engine.......................................................................................................................12 2.7.1. Installing from source............................................................................................................12 2.7.2. Installing the EVMS Debian packages..................................................................................13 2.7.3. Installing from CVS..............................................................................................................13 2.8. Activating EVMS volumes.............................................................................................................14 2.9. The root filesystem on an EVMS volume.......................................................................................15 2.10. Setting up clustered EVMS...........................................................................................................15 Chapter 3. Using the EVMS interfaces...........................................................................................................17 3.1. EVMS GUI.....................................................................................................................................17 3.1.1. Using context sensitive and action menus.............................................................................17 3.1.2. Saving changes......................................................................................................................17 3.1.3. Refreshing changes................................................................................................................17 3.1.4. Using the GUI "+".................................................................................................................18 3.1.5. Using the accelerator keys.....................................................................................................18 3.2. EVMS Ncurses interface.................................................................................................................19 3.2.1. Navigating through EVMS Ncurses......................................................................................20 3.2.2. Saving changes......................................................................................................................20 3.3. EVMS Command Line Interpreter..................................................................................................20 3.3.1. Using the EVMS CLI............................................................................................................21 3.3.2. Notes on commands and command files...............................................................................22 Chapter 4. The EVMS log file and error data collection..............................................................................23 4.1. About the EVMS log file................................................................................................................23 4.2. Log file logging levels....................................................................................................................23 4.3. Specifying the logging levels..........................................................................................................24 Chapter 5. Viewing compatibility volumes after migrating..........................................................................25 5.1. Using the EVMS GUI.....................................................................................................................25 5.2. Using Ncurses.................................................................................................................................25 i EVMS User Guide Table of Contents Chapter 5. Viewing compatibility volumes after migrating 5.3. Using the CLI..................................................................................................................................26 Chapter 6. Obtaining interface display details...............................................................................................28 6.1. Using the EVMS GUI.....................................................................................................................28 6.2. Using Ncurses.................................................................................................................................28 6.3. Using the CLI..................................................................................................................................28 Chapter 7. Assigning a segment manager.......................................................................................................30 7.1. When to assign a segment manager................................................................................................30 7.2. Types of segment managers............................................................................................................30 7.2.1. DOS Segment Manager.........................................................................................................30 7.2.2. GUID Partitioning Table (GPT) Segment Manager..............................................................30 7.2.3. S/390 Segment Manager.......................................................................................................31 7.2.4. Cluster segment manager......................................................................................................31 7.2.5. BSD segment manager..........................................................................................................31 7.3. Assigning a segment manager to an existing disk..........................................................................32 7.4. Assigning a segment manager to a new disk..................................................................................32 7.5. Example: assign a segment manager..............................................................................................32
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