Abstract: A method, a controller, an arrangement and a computer program for managing a configuration of clustered computers is presented. The controller is configured to define configuration information as deployment prototypes for functional entities of clustered computers, to identify the predefined deployment prototypes needed for a configuration of clustered computers, to clone the identified deployment prototypes for creating deployment data structures for clustered computers, and to manage the configuration of clustered computers according to the created deployment data structures.

Abstract: A method, a controller, an arrangement and a computer program for managing a configuration of clustered computers is presented. The controller is configured to define configuration information as deployment prototypes for functional entities of clustered computers, to identify the predefined deployment prototypes needed for a configuration of clustered computers, to clone the identified deployment prototypes for creating deployment data structures for clustered computers, and to manage the configuration of clustered computers according to the created deployment data structures.

Abstract: A method for selecting a target group for an operation applied to a network element (NE) of a communication network includes (a) receiving from a network management element information on the operation and on the first target group (S), which is a group of object instances contained in the memory of the network element, and as comparison criteria of object instance attributes, the criteria containing the reference values, (b) comparing the attribute values of object instances belonging to the first target group to said reference values, and (c) selecting the final target group from among those object instances in the first target group (S) that have attributes fulfilling the received comparison criteria.