|M.Sc Student||Kantor Yoav|
|Subject||Combining Erasure-Code and Replication Redundancy Schemes|
for Increased Storage and Repair Efficiency in
P2P Storage Systems
|Department||Department of Computer Science||Supervisor||Professor Roy Friedman|
|Full Thesis text|
In this work we introduces a new family of redundancy schemes called replicated erasure codes (REC), which combine the storage-space eﬃciency of erasure codes and the repair-traﬃc eﬃciency of replication. A formal model for analyzing the storage and repair-traﬃc costs under availability and persistency constraints is also developed. It is shown that under parameters that characterize common P2P environments, REC generally achieves better results than each of the two methods separately.