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Colloquium - Maltzahn

Research Thrusts of the Storage Systems Research Center at UC Santa Cruz
University of California, Santa Cruz
1/27/2005
5:00pm-6:00pm

The University of California, Santa Cruz, has a large and growing storage systems research group. Our research includes projects in peta-scale object-based storage, new storage technologies, adaptive and predictive techniques, archival storage, and, more recently, storage Quality of Service. In this talk I will give an overview on three research thrusts: MRAM-enabled file systems, peta-scale object-based storage, and integrating machine learning into operating systems.

Non-volatile MRAM enables file systems to keep rich metadata without the traditional high cost of metadata management. We designed and prototyped the Linking File System (LiFS) that extends the traditional hierarchical relationships of files and directories to valued relationships between files where files and relationships can have an arbitrary set of attributes. I will show use cases and design challenges of this approach.

The second part of the talk focuses on the challenges and our solutions for the design of a 2-petabyte storage system containing billions of files ranging from bytes to terabytes and serving 10,000+ clients at aggregate data rates of 100 GB/sec, all built from commodity components. Many well-understood issues become quite difficult at this scale, including reliability, data distribution, metadata management, data storage, and, in some situations, security.

In the final part I will talk about initial efforts to create Tunix, a machine learning-based operating system. This research includes applying machine learning to specific operating system problems, the further development of practical machine learning algorithms for operating systems problems, and the development of operating system infrastructure to support efficient ubiquitous machine learning throughout the operating system.

Carlos Maltzahn is a Research Assistant Computer Scientist at UCSC. His research is on storage systems, network intermediaries, machine learning, information retrieval, social network technologies, computer supported collaborative work. Prior to joining UCSC, he worked at Network Appliance.

Sponsored by the Colorado Center for Information Storage.

Department of Computer Science
University of Colorado Boulder
Boulder, CO 80309-0430 USA
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