Title
Myriad: cost-effective disaster tolerance
Abstract
This paper proposes a new approach for achieving disaster tolerance in large, geographically-distributed storage systems. The system, called Myriad, can achieve the same level of disaster tolerance as a typical single mirrored solution, but uses considerably fewer physical resources, by employing cross-site checksums (via erasure codes) instead of direct replication. The key technical contribution of the paper is a protocol permitting cross-site checksums to be updated in such a way that data recovery is always possible. Another important contribution is the specification of a protocol for recovering from disasters, explicitly verifying the claim of disaster tolerance. Further, it is shown by direct calculation and analytical modeling that Myriad compares favorably with mirroring in terms of both total cost of ownership and reliability.
Year
Venue
Keywords
2002
FAST'02 Proceedings of the 1st USENIX conference on File and storage technologies
erasure code,important contribution,data recovery,cross-site checksums,fewer physical resource,analytical modeling,disaster tolerance,direct replication,key technical contribution,cost-effective disaster tolerance,direct calculation
Field
DocType
ISBN
Checksum,Computer science,Computer security,Total cost of ownership,Mirroring,Data recovery,Erasure code
Conference
1-880446-03-0
Citations 
PageRank 
References 
33
3.07
10
Authors
6
Name
Order
Citations
PageRank
Fay Chang11839160.41
Minwen Ji214010.76
Shun-Tak Leung32610356.31
John MacCormick41380242.03
esther perl sharon510431.65
Li Zhang632931.93