Improving Storage System Availability with D-GRAID

Abstract: 

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 faults occur. D-GRAID also recovers from failures quickly, restoring only live file system data to a hot spare. Both graceful degradation and live-block recovery are implemented in a prototype SCSI-based storage system underneath unmodified file systems, demonstrating that powerful "file-system like" functionality can be implemented behind a narrow block-based interface.

BibTeX
@inproceedings {270015,
author = {Muthian Sivathanu and Vijayan Prabhakaran and Andrea C. Arpaci-Dusseau and Remzi H. Arpaci-Dusseau},
title = {Improving Storage System Availability with {D-GRAID}},
booktitle = {3rd USENIX Conference on File and Storage Technologies (FAST 04)},
year = {2004},
address = {San Francisco, CA},
url = {https://www.usenix.org/conference/fast-04/improving-storage-system-availability-d-graid},
publisher = {USENIX Association},
month = mar
}
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Links

Paper: 
http://usenix.org/publications/library/proceedings/fast04/tech/sivathanu/sivathanu.pdf
Paper (HTML): 
http://usenix.org/publications/library/proceedings/fast04/tech/sivathanu/sivathanu_html/index.html