Red Hat ENTERPRISE LINUX 4 - LVM ADMINISTRATOR Manual

Also see for ENTERPRISE LINUX 4 - DEVELOPER TOOLS GUIDE: Installation guide Installation guide Tuning guide Installation guide Manual

Contents

Chapter 1. The LVM Logical Volume Manager4must not use single-instance LVM on the shared disk as this may result in data corruption.If you have any concerns please contact your Red Hat service representative.NoteCLVM requires changes to the lvm.conf file for cluster-wide locking. For information onconfiguring the lvm.conf file to support CLVM, see Section 3.1, “Creating LVM Volumesin a Cluster”.You configure LVM volumes for use in a cluster with the standard set of LVM commands or the LVMgraphical user interface, as described in Chapter 4, LVM Administration with CLI Commands andChapter 7, LVM Administration with the LVM GUI.For information on installing LVM in a Red Hat Cluster, see Configuring and Managing a Red HatCluster.1.4. Document OverviewThis remainder of this document includes the following chapters:• Chapter 2, LVM Components describes the components that make up an LVM logical volume.• Chapter 3, LVM Administration Overview provides an overview of the basic steps you perform toconfigure LVM logical volumes, whether you are using the LVM Command Line Interface (CLI)commands or the LVM Graphical User Interface (GUI).• Chapter 4, LVM Administration with CLI Commands summarizes the individual administrative tasksyou can perform with the LVM CLI commands to create and maintain logical volumes.• Chapter 5, LVM Configuration Examples provides a variety of LVM configuration examples.• Chapter 6, LVM Troubleshooting provide instructions for troubleshooting a variety of LVM issues.• Chapter 7, LVM Administration with the LVM GUI summarizes the operating of the LVM GUI.• Appendix A, The Device Mapper describes the Device Mapper that LVM uses to map logical andphysical volumes.• Appendix B, The LVM Configuration Files describes the LVM configuration files.• Appendix C, LVM Object Tags describes LVM object tags and host tags.• Appendix D, LVM Volume Group Metadata describes LVM volume group metadata, and includes asample copy of metadata for an LVM volume group.