EVMS User Guide
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Preface

This guide tells how to install, configure, and manage Enterprise Volume Management System (EVMS). EVMS is a storage management program that provides a single framework for managing and administering your system's storage.

This guide is intended for Linux system administrators and users who are responsible for setting up and maintaining EVMS.

For additional information about EVMS or to ask questions specific to your distribution, refer to the EVMS mailing lists. You can view the list archives or subscribe to the lists from the EVMS Project web site.

The following table shows how this guide is organized:

Table 1. Organization of the EVMS User Guide

Chapter or appendix title	Contents
1. What is EVMS?	Discusses general EVMS concepts and terms.
2. Downloading and installing EVMS	Tells how to access and install EVMS and configure it for use on your system.
3. Using the EVMS interfaces	Describes the three EVMS user interfaces and how to use them.
4. The EVMS log file and error data collection	Discusses the EVMS information and error log file and explains how to change the logging level.
5. Viewing compatibility volumes after migrating	Tells how to view existing files that have been migrated to EVMS.
6. Obtaining interface display details	Tells how to view detailed information about EVMS objects.
7. Assigning a segment manager	Discusses segments and explains how to assign a segment manager.
8. Creating segments	Explains when and how to create segments.
9. Creating containers	Discusses containers and explains when and how to create them.
10. Creating regions	Discusses regions and explains when and how to create them.
11. Creating drive links	Discusses the drive linking feature and tells how to create a drive link.
12. Creating snapshots	Discusses snapshotting and tells how to create a snapshot.
13. Creating volumes	Explains when and how to create volumes.
14. FSIMS and file system operations	Discusses the standard FSIMs shipped with EVMS and provides examples of adding file systems and coordinating file checks with the FSIMs.
15. Clustering operations	Describes EVMS clustering and how to create private and shared containers.
16. Converting volumes	Explains how to convert EVMS native volumes to compatibility volumes and compatibility volumes to EVMS native volumes.
17. Expanding and shrinking volumes	Tells how to expand and shrink EVMS volumes with the various EVMS user interfaces.
18. Adding features to an existing volume	Tells how to add additional features, such as drive linking and bad block relocation, to an existing volume.
19. Plug-in operations tasks	Discusses the plug-in tasks that are available within the context of a particular plug-in.
20. Destroying EVMS objects	Tells how to safely destroy EVMS objects.
A. Building an init-ramdisk to use with EVMS	Explains the steps necessary to build a ram-based device that acts a temporary root file system at boot time.
B. The DOS link plug-in	Provides details about the DOS link plug-in, which is a segment manager plug-in.
C. The MD region manager	Explains the Multiple Disks (MD) support in Linux that is a software implementation of RAID.
D. The LVM plug-in	Tells how the LVM plug-in is implemented and how to perform container operations.
E. The CSM plug-in	Explains how the Cluster Segment Manager (CSM) plug-in is implemented and how to perform CSM operations.
F. JFS file system interface module	Provides information about the JFS FSIM.
G. XFS file system interface module	Provides information about the XFS FSIM.
H. ReiserFS file system interface module	Provides information about the ReiserFS FSIM.
I. Ext-2/3 file system interface module	Provides information about the Ext-2/3 FSIM.

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