Graduate School and Research Center In communication systems

Seminar: Codes tailor-made for distributed networked storage

Anwitaman Datta - assistant professor, NTU Singapore

Digital Security

Date: June 16, 2011

Location: Eurecom - Salle des conseils

Redundancy is essential for fault-tolerance in distributed networked storage systems ? which are ubiquitous and come in diverse flavors (e.g., p2p storage, data-centers). Erasure codes provide orders of magnitude better performance than replication in terms of fault-tolerance/storage overhead trade-offs, however traditional erasure codes incur high overhead for recreating lost redundancy in the system. This cardinal drawback has led to a recent flurry in designing codes which are tailor-made with the nuances of distributed storage systems in mind. In this talk, we will provide a brief overview of some such proposed codes, concluding with self-repairing codes.

Codes tailor-made for distributed networked storage