HIPERFIT Seminar Talk

Title: File System Scalability with Highly Decentralized Metadata on Independent Storage Devices

Presenter: André Brinkmann, Johannes Gutenberg Universität, Mainz

Time: Tuesday, May 17, 2016, 15:01-16:00

Place: Universitetsparken 5, Auditorium 10 (mezzanine, south end of building), University of Copenhagen.


Data handling concepts for Cloud Computing and High-Performance Computing have been developed nearly independently from each other and are still mostly restricted to their initial use cases. Cloud Computing approaches try to scale out by removing the file system abstraction and applying a flat key-value namespace, while HPC environments rely on file system semantics and the corresponding management capabilities. This talk discusses an approach to overcoming the resulting gap by building a file system with a (very slightly) relaxed Posix-semantics on top of the key-value interface of the Seagate Kinetic storage platform. Taking advantage of higher-level functionality to handle metadata on the drives themselves a server-less system architecture is proposed. Skipping path component traversal during the lookup operation is the key technique discussed in this paper to avoid performance degradation with highly decentralized metadata. Scalability implications are reviewed based on a fuse file system implementation.


André Brinkmann is full professor at the computer science department of Johannes Gutenberg University in Mainz, where he heads the university’s data processing center. He received his Ph.D. in electrical engineering in 2004 from the University of Paderborn, where he subsequently was assistant professor and managing director of the Paderborn Centre for Parallel Computing (PC2) from 2008 to 2011. His research interests focus on algorithm engineering techniques in data centre management, cloud computing, and storage systems. He has published more than 100 papers in renowned conferences and journals. He is associate editor of ACM Transactions on Storage and steering committee member of French Grid’5000 and the IEEE Symposium on Massive Storage Systems and Technologies (MSST) and IEEE International Conference on Networking, Architecture, and Storage (NAS).

All are welcome. No registration required.

Hosts: Fritz Henglein, DIKU, HIPERFIT.


17 May 2016