“SCFS: A Shared Cloud-backed File System”

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Alysson Bessani, Ricardo Mendes, Tiago Oliveira, Nuno Ferreira Neves, Miguel Correia, Marcelo Pasin, Paulo Verissimo

in the 2014 USENIX Annual Technical Conference (USENIX-ATC), Philadelphia, PA, US, Jun. 2014.

Abstract: Despite of their rising popularity, current cloud storage services and cloud-backed storage systems still have some limitations related to reliability, durability assurances and inefficient file sharing. We present SCFS, a cloud-backed file system that addresses these issues and provides strong consistency and near-POSIX semantics on top of eventually-consistent cloud storage services. SCFS provides a pluggable backplane that allows it to work with various storage clouds or a cloud-of-clouds (for added dependability). It also exploits some design opportunities inherent in the current cloud services through a set of novel ideas for cloud-backed file systems: always write and avoid reading, modular coordination, private name spaces and consistency anchors.

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Project(s): Project:BioBankCloud, Project:TCLOUDS

Research line(s): Fault and Intrusion Tolerance in Open Distributed Systems (FIT)

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