Architecture and Implementation of Distributed Data Storage Using Web Services, CORBA and PVM

The paper proposes an architecture and its implementation called PVMWeb-Cluster I/O targeted for distributed data storage and retrieval. Data is submitted via Web services from geographically distant clients or via CORBA from within clusters which offers better performance. The system consists of many, possibly geographically distributed clusters which run DAMPVM/PVM. Each cluster has a manager waiting for CORBA read/write calls which are passed to particular nodes in the cluster via PVM messages. Each cluster has a corresponding Web service that passes read/write calls to the CORBA manager. Web services form a top layer of PVMWebCluster I/O and call each other to obtain the best cluster/node to store a particular chunk of data.