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Skylight—A Window on Shingled Disk Operation
We introduce Skylight, a novel methodology that combines software and hardware techniques to reverse engineer key properties of drive-managed Shingled Magnetic Recording (SMR) drives. The software part of Skylight measures the latency of controlled I/O ...
RAIDShield: Characterizing, Monitoring, and Proactively Protecting Against Disk Failures
- Ao Ma,
- Rachel Traylor,
- Fred Douglis,
- Mark Chamness,
- Guanlin Lu,
- Darren Sawyer,
- Surendar Chandra,
- Windsor Hsu
Modern storage systems orchestrate a group of disks to achieve their performance and reliability goals. Even though such systems are designed to withstand the failure of individual disks, failure of multiple disks poses a unique set of challenges. We ...
BetrFS: Write-Optimization in a Kernel File System
- William Jannen,
- Jun Yuan,
- Yang Zhan,
- Amogh Akshintala,
- John Esmet,
- Yizheng Jiao,
- Ankur Mittal,
- Prashant Pandey,
- Phaneendra Reddy,
- Leif Walsh,
- Michael A. Bender,
- Martin Farach-Colton,
- Rob Johnson,
- Bradley C. Kuszmaul,
- Donald E. Porter
The Bε-tree File System, or BetrFS (pronounced “better eff ess”), is the first in-kernel file system to use a write-optimized data structure (WODS). WODS are promising building blocks for storage systems because they support both microwrites and large ...
Shuffle Index: Efficient and Private Access to Outsourced Data
Data outsourcing and cloud computing have been emerging at an ever-growing rate as successful approaches for allowing users and companies to rely on external services for storing and managing data. As data and access to them are not under the control of ...
