Paper Info
Title
HydraFS: a high-throughput file system for the HYDRAstor content-addressable storage system
Abstract
A content-addressable storage (CAS) system is a valuable tool for building storage solutions, providing efficiency by automatically detecting and eliminating duplicate blocks; it can also be capable of high throughput, at least for streaming access. However, the absence of a standardized API is a barrier to the use of CAS for existing applications. Additionally, applications would have to deal with the unique characteristics of CAS, such as immutability of blocks and high latency of operations. An attractive alternative is to build a file system on top of CAS, since applications can use its interface without modification. Mapping a file system onto a CAS system efficiently, so as to obtain high duplicate elimination and high throughput, requires a very different design than for a traditional disk subsystem. In this paper, we present the design, implementation, and evaluation of HydraFS, a file system built on top of HYDRAstor, a scalable, distributed, content-addressable block storage system. HydraFS provides high-performance reads and writes for streaming access, achieving 82-100% of the HYDRAstor throughput, while maintaining high duplicate elimination.
Year
Venue
Keywords
2010
FAST
file system,hydrastor throughput,high throughput,hydrastor content-addressable storage system,content-addressable storage,high-throughput file system,content-addressable block storage system,high latency,duplicate block,cas system,storage solution,high duplicate elimination,storage system
Field
DocType
Citations 
File system,Self-certifying File System,Computer science,Latency (engineering),Block (data storage),Content-addressable storage,Throughput,File system fragmentation,Operating system,Scalability,Embedded system
Conference
53
PageRank 
References 
Authors
2.74
22
8
Name
Order
Citations
PageRank
Cristian Ungureanu143625.80
Benjamin Atkin2674.56
Akshat Aranya313510.11
Salil Gokhale4563.12
Stephen Rago5583.63
Grzegorz Całkowski6532.74
Cezary Dubnicki768253.50
Aniruddha Bohra824315.03