Events Calendar

CS Colloquium

Speaker: Haryadi Gunawi, UC Berkeley

Talk Title: Towards Reliable Storage Systems

Abstract: Three trends will dominate the storage systems of tomorrow: increasingly massive amounts of data, the incredible growth of software complexity, and the increasing use of cheap and less reliable hardware. These trends present us with a huge challenge: How can we promise users that storage systems work robustly in spite of their massive software complexity and the broad range of hardware failures that can arise? Addressing this question is not straightforward as current approaches scatter recovery code in thousands of lines of intricate, low-level C code. As a result, reliability problems are often found in current storage systems.

In this talk, I will present how we build a new generation of more robust and reliable storage systems via simpler designs and powerful testing frameworks. Specifically, I will first present new online and offline reliability frameworks (I/O Shepherding and SQCK) that advocate a higher-level strategy where the logic of reliability policies can be described clearly and concisely. I will then describe my most recent work in advancing the current state-of-the-art of cloud testing via FATE and DESTINI, a failure testing service and a framework for declarative recovery specifications. Finally, I will close this talk with my future plans in the area of cloud storage systems.


Biography: Haryadi Gunawi is currently a postdoctoral fellow at the University of California, Berkeley. He received his Ph.D. from the University of Wisconsin, Madison in 2009. His current research focuses on operating systems and large-scale storage systems. Beyond that, his research experience also spans cross-disciplinary areas such as software engineering, distributed systems, networking, and databases. He has won numerous awards including the 2010 NSF Computing Innovation Fellowship, a co-winner of the 2009 departmental best thesis award, an Honorable Mention for the 2009 ACM Doctoral Dissertation Award, and an NSF CISE Award under the Data-intensive Computing program.


Host: Prof. Ramesh Govindan

Location: Seaver Science Library (SSL) - 150

Audiences: Everyone Is Invited

Contact: Kanak Agrawal