Chaitanya K. Baru

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This paper describes the architecture of the SDSC Storage Resource Broker (SRB). The SRB is middleware that provides applications a uniform API to access heterogeneous distributed storage resources including, filesystems, database systems, and archival storage systems. The SRB utilizes a metadata catalog service, MCAT, to provide a "collection"-oriented(More)
The MIX mediator system, MIX<italic>m</italic>, is developed as part of the MIX Project at the San Diego Supercomputer Center, and the University of California, San Diego.<supscrpt>1</supscrpt> MIX<italic>m</italic> uses XML as the common model for data exchange. Mediator views are expressed in XMAS (<italic>XML Matching And Structuring Language</italic>),(More)
The rate of increase in database size and response time requirements has outpaced advancements in processor and mass storage technology. One way to satisfy the increasing demand for processing power and I/O bandwidth in database applications is to have a number of processors, loosely or tightly coupled, serving database requests concurrently. Technologies(More)
Traditional High Performance Computing (HPC) resources, such as those available on the TeraGrid, support batch job submissions using Distributed Resource Management Systems (DRMS) like TORQUE or the Sun Grid Engine (SGE). For large-scale data intensive computing, programming paradigms such as MapReduce are becoming popular. A growing number of codes in(More)
Through support from the National Institutes of Health's National Center for Research Resources, the Biomedical Informatics Research Network (BIRN) is pioneering the use of advanced cyberinfrastructure for medical research. By synchronizing developments in advanced wide area networking, distributed computing, distributed database federation, and other(More)
The Mediation of Information using XML (MIX) project is a joint effort between the the San Diego Supercomputer Center (SDSC) and the Database Lab at the University of California San Diego where we are investigating the use of XML as the medium for information modeling and information interchange among heterogeneous information sources. Relational databases(More)
In such an environment a query language will serve for more than "a souped-up version of X-Pointer". Our position focuses on the use of an XML query language as a view definition language that drives XML mediator systems. A mediator selects, restructures and merges information from multiple autonomous sources/sites. It exports an integrated XML view(More)
Integration of information from distributed, heterogeneous information sources is an active area of research in the database community. The research efforts have mainly concentrated on sources such as collections of web documents, relational databases and text files. In the domain of spatial information systems, researchers have studied integration(More)
The preservation of digital information for long periods of time is becoming feasible through the integration of archival storage technology from supercomputer centers, data grid technology from the computer science community, information models from the digital library community, and preservation models from the archivist’s community. The supercomputer(More)