Abstract: A method for managing clustered computer resources, and particularly very large scale clusters of computer resources by a semi-hierarchical n level, n+1 tier approach. Controller resources and controlled resources exist at different hardware levels. The top level consists of controller nodes and a first tier is defined for at least part of the top level. At a last level, at which controlled nodes are found, a last tier is defined. Additional levels of controlled and controller resources may exist between the top and last levels. At least one logical intermediate tier is introduced between adjacent levels and comprises at least one proxy or set of proxy processes.

Abstract: A system and method for managing clustered computer resources, and more particularly very large scale clusters of computer resources by a semi-hierarchical n level, n+1 tier approach. The top level consists of the controller nodes. A first tier is defined at the top level. At a last level, at which the cluster of controlled nodes is found, a last tier is defined. Additional levels of controller or controlled nodes may exist between the top and bottom levels. At least one intermediate tier is introduced between two of the levels and comprises at least one proxy or a plurality of proxies. A proxy is a process or set of processes representing processes of the clustered computer resources. Proxies can run either on controller nodes or on the controlled nodes or controlled node clusters to facilitate administration of the controlled nodes.

Abstract: The invention allows for dealing with failures that may result in split-brain situations. In particular the safe management of shared resources is supported even though the owners of a shared resource may be subject to split-brain situation. In addition our invention allows us to update the cluster configuration despite the fact that some members of the cluster cannot be reached during the reconfiguration. The policies imposed by our invention ensure that all nodes started always use the up-to-date configuration as working configuration or if that is not possible the administrator is warned about a potential inconsistency of the configuration.

Abstract: A system and method for managing clustered computer resources, and more particularly very large scale clusters of computer resources by a semi-hierarchical n level, n+1 tier approach. The top level consists of the controller nodes. A first tier is defined at the top level. At a last level, at which the cluster of controlled nodes is found, a last tier is defined. Additional levels of controller or controlled nodes may exist between the top and bottom levels. At least one intermediate tier is introduced between two of the levels and comprises at least one proxy or a plurality of proxies. A proxy is a process or set of processes representing processes of the clustered computer resources. Proxies can run either on controller nodes or on the controlled nodes or controlled node clusters to facilitate administration of the controlled nodes.