Logical Volume Manager Hardware and Software Requirements

Hardware Requirements

• Servers. This Logical Volume Manager Recovery Kit requires two or more computers configured in accordance with the requirements described in the LifeKeeper for Linux Release Notes and the LifeKeeper for Linux Installation Guide, which are shipped with the product media.

• Data Storage. The Logical Volume Manager Recovery Kit can be used in conjunction both with shared storage and with replicated storage provided by the DataKeeper for Linux product. It cannot be used with network attached storage (NAS). Otherwise, the kit has no specific requirements on storage configurations beyond the requirements of the recovery kit protecting the application sitting on top of the logical volume(s).

Software Requirements

• Operating System. See the LifeKeeper for Linux Release Notes for a list of supported distributions and LVM versions.

• Logical Volume Manager. LVM is included in all major Linux distributions. The Logical Volume Manager Recovery Kit installation requires that the lvm orlvm2 rpm package be installed. This release of the LifeKeeper Logical Volume Manager Recovery Kit supports both LVM Version 1 and LVM Version 2 (LVM2). The specific versions of LVM supported are those delivered by the Linux distributions.

• LifeKeeper Software. You must install the same version of the LifeKeeper core software and any Application Recovery Kits including the Logical Volume Manager Recovery Kit and any patches, on each server. Please refer to the LifeKeeper for Linux Release Notes for specific LifeKeeper requirements.

• LifeKeeper for Linux Logical Volume Manager Recovery Kit. The Logical Volume Manager Recovery Kit is provided on the LifeKeeper Installation Image File (sps.img). It is packaged, installed and removed via the Red Hat Package Manager, rpm: steeleye-lkLVM.

During package installation, checks are made to ensure that supported versions of both the LifeKeeper Core package and the LVM package are present on the system where the Logical Volume Manager Recovery Kit is being installed. The LifeKeeper for Linux Release Notes contains information on the required versions of these packages.

Refer to the LifeKeeper for Linux Installation Guide for instructions on how to install or remove the LifeKeeper Core software and the Logical Volume Manager Recovery Kit.

The Logical Volume Manager Recovery Kit must be installed on each server in the cluster on which LVM is being used to manage disk resources that are to be protected by LifeKeeper.

The Logical Volume Manager Recovery Kit must be installed prior to the hierarchy creation and extension of applications that sit on top of an LVM volume.