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ACM Transactions on Storage (TOS), Volume 1 Issue 2, May 2005

Improving storage system availability with D-GRAID
Muthian Sivathanu, Vijayan Prabhakaran, Andrea C. Arpaci-Dusseau, Remzi H. Arpaci-Dusseau
Pages: 133-170
DOI: 10.1145/1063786.1063787
We present the design, implementation, and evaluation of D-GRAID, a gracefully degrading and quickly recovering RAID storage array. D-GRAID ensures that most files within the file system remain available even when an unexpectedly high number of...

Network file storage with graceful performance degradation
Anxiao (Andrew) Jiang, Jehoshua Bruck
Pages: 171-189
DOI: 10.1145/1063786.1063788
A file storage scheme is proposed for networks containing heterogeneous clients. In the scheme, the performance measured by file-retrieval delays degrades gracefully under increasingly serious faulty circumstances. The scheme combines coding with...

Ext3cow: a time-shifting file system for regulatory compliance
Zachary Peterson, Randal Burns
Pages: 190-212
DOI: 10.1145/1063786.1063789
The ext3cow file system, built on the popular ext3 file system, provides an open-source file versioning and snapshot platform for compliance with the versioning and audtitability requirements of recent electronic record retention legislation. Ext3cow...

Mining block correlations to improve storage performance
Zhenmin Li, Zhifeng Chen, Yuanyuan Zhou
Pages: 213-245
DOI: 10.1145/1063786.1063790
Block correlations are common semantic patterns in storage systems. They can be exploited for improving the effectiveness of storage caching, prefetching, data layout, and disk scheduling. Unfortunately, information about block correlations is...

Bridging the digital divide: storage media + postal network = generic high-bandwidth communication
Nitin Garg, Sumeet Sobti, Junwen Lai, Fengzhou Zheng, Kai Li, Randolph Y. Wang, Arvind Krishnamurthy
Pages: 246-275
DOI: 10.1145/1063786.1063791
Making high-bandwidth Internet access pervasively available to a large worldwide audience is a difficult challenge, especially in many developing regions. As we wait for the uncertain takeoff of technologies that promise to improve the situation, we...