Seminars & Events

Mathematics and Computer Science Division
"Namespace Implementation on top of an Object-Based Storage System"

DATE: August 20, 2012 to August 20, 2012
TIME: 10:30 AM - 11:30 AM
SPEAKER: Cengiz Karakoyunlu, Ph.D. Candidate, Electrical and Computer Engineering Department, University of Connecticut
LOCATION: Building 240, Conference Room 4301, Argonne National Laboratory
HOST: Dries Kimpe

Description:
Object-Based Storage Systems are becoming increasingly popular in the storage community. These systems store and access the data as objects, an ordered set of bytes with a unique numerical identifier. Despite their popularity, Object-Based Storage Systems do not have explicit support for namespaces, such as traditional directories. It is possible to support namespace operations in these systems by mapping namespace primitives to the underlying storage. Implementing the namespace operations on an existing storage model is challenging, since these operations have to be atomic in order to guarantee consistency in the namespace.

This presentation will introduce a number of methods to support atomic and consistent namespace operations on top of a novel object-based storage system, the ASG storage system being developed at Argonne. Advantages and disadvantages of each implementation method will be discussed. Extensions to the storage model in order to better support namespace operations will be explained. Comparison between new namespace operations and the existing standards will also be presented.

Bio:

Cengiz is a Ph.D. candidate in the Electrical and Computer Engineering Department of the University of Connecticut. His research interests include Parallel Computing, Storage Systems, Distributed File Systems and Computer Architecture. He is currently working on Optimizing PVFS Implementation on top of OSD and Techniques for Energy Conservation in Parallel File Systems at his institution. His advisor is Professor John Chandy.

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