LifeKeeper migrates all applications and transfers connectivity in such a way that clients have continuous access to applications and data. Scalability LifeKeeper provides a cluster framework to allow the number of users supported by an application to be increased by simply adding nodes into the cluster. To ensure protection from failures, LifeKeeper also supports scalability at the application level. When LifeKeeper is installed with a multi-directional configuration, applications that are running on one machine can be broken up and failed over to separate machines. In the LifeKeeper shared-storage environment, data storage is separate from the servers in the cluster.
All data is stored on a shared disk array.
This independence allows data to be accessed regardless of which server is being used to host the application. Additionally, LifeKeeper's shared storage locking mechanism helps maintain data integrity by locking the drive so that only one application can access specified data at one time. LifeKeeper supports up to two nodes per shared SCSI bus. This allows shared SCSI disk-based application recovery between two nodes within the cluster that are connected to the same shared disk. In this configuration, one server, in an active-active role, provides backup for failovers from any of the other nodes in the cluster.