Abstract: A primary node and a secondary node each run the same J2EE compliant middleware stack comprising layers including a load balancer, a web server, a web application server, a message control server, a monitoring server, and a database control server. In the primary node, all layers are active. In the secondary node, part of the layers are active and part of the layers are in standby. A data replication partition shared between the primary node and the secondary node includes persistent resource data accessible to a selection of the layers of the primary node. A heartbeat controller monitors each node, including the middleware stack, and upon detection of a failure, controls transfer of the services provided by the primary node to the secondary node by transferring virtual IP addresses from the primary node to the secondary node, remounting the data replication partition for access by the secondary node, and activating the standby layers which require access to the data in the data replication partition.

Abstract: A method, system, and program for managing failover of J2EE compliant middleware in a high availability system are provided. A primary node and a secondary node each run the same J2EE compliant middleware stack comprising layers including a load balancer, a web server, a web application server, a message control server, a monitoring server, and a database control server. In the primary node, all layers are active. In the secondary node, part of the layers are active and part of the layers are in standby. A data replication partition shared between the primary node and the secondary node includes persistent resource data accessible to a selection of the layers of the primary node.

Abstract: A method, system, and program for managing failover of J2EE compliant middleware in a high availability system are provided. A primary node and a secondary node each run the same J2EE compliant middleware stack comprising layers including a load balancer, a web server, a web application server, a message control server, a monitoring server, and a database control server. In the primary node, all layers are active. In the secondary node, part of the layers are active and part of the layers are in standby. A data replication partition shared between the primary node and the secondary node includes persistent resource data accessible to a selection of the layers of the primary node.

Abstract: A method, system, and program for remote enterprise management of high availability systems are provided. Multiple high availability systems are networked in an enterprise and managed overall by a remote enterprise server. Within each high availability system, a cluster management controller monitors a status of a particular component of the high availability system and reacting to adjust the high availability system when the status indicates an error. In addition, with each high availability system, a monitoring controller detects when the cluster management controller reacts to the status of the particular component and detects a condition of a multiple components of the high availability system. The monitoring controller then reports the error and the condition of the components to the remote enterprise server. The remote enterprise server is enabled to manage each high availability system based on the reports received from each of the multiple high availability systems.

Abstract: A cutting assembly has first and second cutting elements. The cutting elements have outer end portions and extend generally laterally in opposed directions. The cutting elements are movable between a first position at which the end portions of the cutting elements are spaced a first preselected distance one from the other and a second position at which the end portions are spaced a different distance one from the other.