SteelEye 4.5.0 manual

LifeKeeper LVM Hierarchy Creation and Administration

2.On the system which is to be the primary server 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 using shared storage, you must ensure that all physical volumes assigned to a volume group are properly shared between the machines in the LifeKeeper cluster on which you intend to run the protected application. If you intend to use LVM with LifeKeeper Data Replication, see the Using LVM with LifeKeeper Data Replication section below.

3.Create file systems on each of the logical volumes. If instead you intend to use raw I/O, bind a raw device to each of the logical volume devices.

4.Configure the protected application on the file systems, following the configuration instructions in the administration guide for the LifeKeeper recovery kit associated with the application.

5.Create and extend the application hierarchy following the instructions in the appropriate application recovery kit administration guide.

6.IMPORTANT: Perform manual in-service operations to temporarily move the application hierarchy to each of the cluster nodes to which the hierarchy has been extended. This step must be done once prior to any node failover operations, in order for the LVM subsystem on each cluster node to know about the configuration of the new volume groups and logical volumes. After you have performed these manual switchovers, move the application hierarchy back to the desired primary cluster node.

10 LVM Recovery Kit Administration Guide