SteelEye 4.5.0 manual

LifeKeeper ® for Linux v4.5.0 Logical V olume Manager (L VM) Recovery Kit Administration Guide Revision A 06/2004[...]

The product described in this book is a licensed product of SteelEye ® Technology, Inc. SteelEye, SteelEye Technology, and LifeKeeper are registered trademarks of SteelEye Technology, Inc. Linux is a registered trademark of Linus Torvalds. Other brand and product names used herein are for identification purposes only and may be trademarks of their[...]

Table of Contents Introduction ................................................................................................................................................................... 3 Document Contents .......................................................................................................................................[...]

2 LVM Recovery Kit Administration Gui de[...]

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, Life Keeper-protected applications can take advantage of the benefits offered by the Logical Volume Mana ger, including simplified storage m anag[...]

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, alon[...]

Requirements Requirements Your LifeKeeper configuration must meet the following requireme nts prior to the installation of the LifeKeeper for Linux LVM Recovery Kit. Please see the LifeKeeper for Linux Planning and Installation Guide for specific instructions regarding the configuration of your LifeKeeper hardware and software. Hardware Requirement[...]

Overview Overview LVM Operation LVM is currently the standard volume manageme nt product included with all of the major Linux distributions. LVM allows multiple physical disks and/or disk partitions to be grouped together into entities known as volume groups. Volume groups may then be divided or partitioned into logical volumes. Logical volumes are[...]

Overview As shown in Figure 1, each volume group has one or more logical volum es that depend on it. Conversely, each logical volume must have a volume group on which it depends. A typical LifeKeeper hierarchy containing these two LVM resources looks much like the relationships shown in Figure 1. Refer to Figure 2 in the LifeKeeper LVM Hierarchy Cr[...]

Overview return immediately with a success indication. This unneeded attempt to bring the logical volumes in service has no usability impact. LVM Version Support As stated previously, this release of the LVM kit has been tested and is being released only against LVM version 1. Sistina recently a nnounced the release of LVM version 2, known as LVM2.[...]

LifeKeeper LVM Hierarchy Creation and Administration LifeKeeper LVM Hierarchy Creation and Administration LifeKeeper LVM hierarchies are created automa tically during the hierarchy creation process for resources that sit on top of logical volumes. The creation and extension of hierarchies containing the LVM resource types will always be driven by t[...]

LifeKeeper LVM Hierarchy Creation and Administration 2. On the system which is to be the primary ser ver for your application, create and activate the desired volume groups and logical volumes using the tools provided by the LVM package, and described in the LVM HowTo document referenced in the Documentation and References section above. If you are[...]

LifeKeeper LVM Hierarchy Creation and Administration Using LVM with LifeKeeper Data Replication The LVM Recovery Kit currently supports the u se of LVM “above” LifeKeeper Data Replication (LKDR), but not LKDR “above” LVM. In other words, the kit can support a configuration in which the physical volume components of a volume group are LKDR d[...]

LifeKeeper LVM Hierarchy Creation and Administration Volume Group Reconfiguration One of the primary benefits of using a logical volume manager is the ability to dynamically resize logical volumes as storage requirements change. Because this may involve adding or deleting physical partitions or disks from an LVM volume group definition, the LVM Rec[...]

LifeKeeper LVM Hierarchy Creation and Administration Clicking the Resource Configuration button initiates the mechanism for reconfiguring your hierarchy to reflect any modifications to the volume group resource. After a brief pause, an information box will display the volume group modifications that LifeKeeper has detected. Figure 5 below shows an [...]

LifeKeeper LVM Hierarchy Creation and Administration After clicking the Reconfigure button, an information box will appear, showing the progress of the reconfiguration procedure, as shown in Figure 6 below. When the process has been completed successfully, the Done button will become enabled. Clicking Done will close the information box and return [...]

LifeKeeper LVM Hierarchy Creation and Administration The following two figures show examples of the information boxes that would be displayed during the reconfiguration process when a device partition has been removed from a volum e group. Figure 7: LVM volume group reconfiguration for deleted device Figure 8: LVM volume group reconfiguration for d[...]

Troubleshooting Troubleshooting Error Messages This section provides a list of messages that you ma y encounter with the use of the LifeKeeper LVM Recovery Kit. Where appropriate, it provides an additional explanation of the cause of an error and necessary action to resolve the error condition. Because the LVM Recovery Kit relies on other Life Keep[...]

Troubleshooting Error Number Error Message 000023 Error bringing resource < tag name> in service on server <server name> 000024 Failed resource creation of resource < tag name> on server <server name> 000027 Removing file system dependenc y from <parent tag> to <child tag> on server <server name> due to an [...]

Troubleshooting Hierarchy Restore Error Number Error Message 000023 Error bringing resource < tag name> in service on server <server name> Resource Monitoring Error Number Error Message 000001 Calling sendevent for resource < tag name> on server <server name> LVM Recovery Kit Error Messages Error Number Error Message 110000 [...]