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ACM Transactions on Storage (TOS) - Special Issue on Usenix Fast 2014, Volume 10 Issue 4, October 2014

Introduction to the Special Issue on USENIX FAST 2014
Bianca Schroeder, Eno Thereska
Article No.: 13
DOI: 10.1145/2670792

STAIR Codes: A General Family of Erasure Codes for Tolerating Device and Sector Failures
Mingqiang Li, Patrick P. C. Lee
Article No.: 14
DOI: 10.1145/2658991

Practical storage systems often adopt erasure codes to tolerate device failures and sector failures, both of which are prevalent in the field. However, traditional erasure codes employ device-level redundancy to protect against sector failures,...

Evaluating Phase Change Memory for Enterprise Storage Systems: A Study of Caching and Tiering Approaches
Hyojun Kim, Sangeetha Seshadri, Clement L. Dickey, Lawrence Chiu
Article No.: 15
DOI: 10.1145/2668128

Storage systems based on Phase Change Memory (PCM) devices are beginning to generate considerable attention in both industry and academic communities. But whether the technology in its current state will be a commercially and technically viable...

Agility and Performance in Elastic Distributed Storage
Lianghong Xu, James Cipar, Elie Krevat, Alexey Tumanov, Nitin Gupta, Michael A. Kozuch, Gregory R. Ganger
Article No.: 16
DOI: 10.1145/2668129

Elastic storage systems can be expanded or contracted to meet current demand, allowing servers to be turned off or used for other tasks. However, the usefulness of an elastic distributed storage system is limited by its agility: how quickly it can...

Checking the Integrity of Transactional Mechanisms
Daniel Fryer, Mike Qin, Jack Sun, Kah Wai Lee, Angela Demke Brown, Ashvin Goel
Article No.: 17
DOI: 10.1145/2675113

Data corruption is the most common consequence of file-system bugs. When such corruption occurs, offline check and recovery tools must be used, but they are error prone and cause significant downtime. Previously we showed that a runtime checker...