SteelEye LifeKeeper User Manual
LifeKeeper® for Linux v4.5.0
Logical Volume Manager (LVM) Recovery Kit
Administration Guide
Revision A
06/2004
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Table of Contents
Introduction...................................................................................................................................................................3
Document Contents................................................................................................................................................3
Documentation and References..............................................................................................................................4
Requirements.................................................................................................................................................................5
Hardware Requirements.........................................................................................................................................5
Software Requirements..........................................................................................................................................5
Overview.......................................................................................................................................................................6
LVM Operation......................................................................................................................................................6
LifeKeeper for Linux LVM Recovery Kit .............................................................................................................6
LVM Recovery Kit Notes and Restrictions............................................................................................................7
Linux Boot Script Modifications.....................................................................................................................7
Support for Raw I/O and Entire Disks............................................................................................................7
Volume Group Activation...............................................................................................................................7
LVM Version Support.....................................................................................................................................8
LifeKeeper LVM Hierarchy Creation and Administration............................................................................................9
Hierarchy Creation Procedure................................................................................................................................9
Using LVM with LifeKeeper Data Replication ...................................................................................................11
Volume Group Reconfiguration...........................................................................................................................12
Troubleshooting...........................................................................................................................................................16
Error Messages.....................................................................................................................................................16
Common Error Messages..............................................................................................................................16
Hierarchy Creation........................................................................................................................................16
Hierarchy Extension......................................................................................................................................17
Hierarchy Restore..........................................................................................................................................18
Resource Monitoring.....................................................................................................................................18
LVM Recovery Kit Error Messages..............................................................................................................18
LifeKeeper for Linux 1
2 LVM Recovery Kit Administration Guide
Introduction
LVM Recovery Kit Administration Guide
Introduction
The LifeKeeper for Linux Logical Volume Manager (LVM) Recovery Kit provides logical volume
support for other LifeKeeper recovery kits. Thus, LifeKeeper-protected applications can take advantage
of the benefits offered by the Logical Volume Manager, including simplified storage management and the
ability to dynamically re-size volumes as needs change.
The LVM Recovery Kit is different from most other LifeKeeper recovery kits in that it is never used
alone, but always as a dependency of another LifeKeeper resource. As such, many of the operations
typically associated with a LifeKeeper recovery kit – for example, creating a hierarchy – are not directly
applicable to the LVM Recovery Kit.
Document Contents
This guide explains the following topics:
• Documentation and References. Provides a list of related LifeKeeper for Linux documents
and where to find them, along with references to a number of helpful documents about the
LVM product.
Requirements. Describes the hardware and software necessary to properly setup, install, and
•
operate the LVM Recovery Kit. Refer to the LifeKeeper for Linux Planning and Installation
Guide for specific instructions on how to install or remove LifeKeeper for Linux software.
•
Overview. Provides a general description of the LVM recovery kit and corresponding
resource types.
LifeKeeper LVM Hierarchy Creation and Administration. Includes a detailed
•
description of LVM recovery kit administration tasks through LifeKeeper.
Troubleshooting. Provides a list of informational and error messages with recommended
•
solutions.
LifeKeeper for Linux 3
Introduction
Documentation and References
The following LifeKeeper documentation is available from SteelEye Technology, Inc.:
• LifeKeeper for Linux Release Notes
• LifeKeeper for Linux Online Product Manual (available from the Help menu within the
LifeKeeper GUI)
• LifeKeeper for Linux Planning and Installation Guide
This documentation, along with documentation associated with other LifeKeeper recovery kits, is
available on the LifeKeeper Documentation CD that is shipped with your software.
The latest versions of LifeKeeper for Linux documentation are also provided on the SteelEye
Technology, Inc. website at:
www.steeleye.com/support/documentation.
For information on LVM, refer to LVM HowTo, Revision 0.4, December 2002; AJ Lewis,
Maintainer; Copyright ©2002 Sistina Software, Inc., available at
tldp.org/HOWTO/LVM-HOWTO/
SuSE has also produced a very good technical white paper titled “The Logical Volume Manger”
that is available at
www.sistina.com/downloads/whitepapers/LVM_WP.pdf
4 LVM Recovery Kit Administration Guide
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