About Me

I am a PhD student at the Johns Hopkins University in the Department of Computer Science. I am a member of the Hopkins Storage Systems Lab and my advisor is Randal Burns. My research interests include erasure coded storage systems, cloud storage, large scale archival systems and data reliability/security. Recently, I have been exploring ways to improve recovery I/O performance within the context of disk failures in a cloud setting with the help of erasure coding.

Prior to coming to JHU, I completed my M.S. from the University of Saarland and earned my B.Sc.(Hons.) from the Lahore University of Management Sciences (LUMS).

During the summer, I will be interning at Microsoft Research, where I will be working with James Mickens.

I hope to be defending by the end of the year, so I am on the lookout for interesting full time opportunities and would love to hear about any challenging projects out there.

Publications

• O. Khan, R. Burns, J. Plank,W. Pierce and C. Huang. Rethinking Erasure Codes for Cloud File Systems: Minimizing I/O for Recovery and Degraded Reads. Conference on File and Storage Technologies (FAST), USENIX, 2012. [pdf | poster | bib]


• O. Khan, R. Burns, J. Plank and C. Huang. In Search of I/O-Optimal Recovery from Disk Failures. Workshop on Hot Topics in Storage and File Systems (HotStorage), USENIX, 2011. [pdf | bib]


• G. Ateniese, R. Burns, R. Curtmola, J. Herring, O. Khan, L. Kissner, Z. Peterson and D. Song. Remote data checking using provable data possession. ACM Transactions on Information and System Security (TISSEC), 14(1), 12:1-12:34, 2011. [pdf | bib]


• O. Khan and R. Burns. Verifying Massively Data Parallel Multi-Stage Computations. Poster presented at Conference on File and Storage Technologies (FAST), ACM, USENIX, 2010. [pdf | abstract]


• R. Curtmola, O. Khan and R. Burns. Robust Remote Data Checking. International Workshop on Storage Security and Survivability (StorageSS), ACM, 2008. [pdf | bib]


• R. Curtmola, O. Khan and R. Burns. MR. PDP: Multiple-Replica Provable Data Possession. International Conference on Distributed Computing Systems (ICDCS), IEEE, 2008. [pdf | bib]


• K. Malik, O. Khan, T. Mobashir and M. Sarwar. Migratable sockets in cluster computing. Journal of Systems and Software, 75(1-2), 171-177, 2005. [pdf | bib]

Teaching

I have assisted in the teaching of the following courses:

• Computer Networks
• Digital Logic
• Transaction Processing Systems
• Introduction to Java
• Intermediate Programming

Personal

Outside my work, some interests that I like to indulge in are:

• The beautiful game, and specifically LFC
• A bit of photography
• Puzzles
• Traveling
• Squash

CV

Available upon request.