Title
Verification of data redundancy in cloud storage
Abstract
Data redundancy is key to preventing data loss and achieving fault-tolerance in cloud storage. Cloud storage provider usually charges users according to the requested level of redundancy. However, a cloud provider may fail to offer the committed level of data redundancy intentionally or accidentally, but the users may not be able to detect such breach until data and economic losses have occurred. In this paper, we propose a scheme to allow users remotely assess the actually deployed data redundancy in the cloud storage without knowing the file layout information. Our layout-free scheme establishes response-time profiles for each different file placements, and uses these profiles to evaluate the level of deployed data redundancy. Our experimental results show the feasibility of our scheme on both an in-house cloud and a public cloud.
Year
DOI
Venue
2013
10.1145/2484402.2484407
SCC@ASIACCS
Keywords
Field
DocType
cloud storage,requested level,layout-free scheme,in-house cloud,committed level,cloud provider,data redundancy,data loss,cloud storage provider,public cloud,verification
Data loss,Computer security,Computer science,Cloud provider,Redundancy (engineering),Data redundancy,Database,Cloud storage,Cloud computing
Conference
Citations 
PageRank 
References 
1
0.41
14
Authors
4
Name
Order
Citations
PageRank
Zhan Wang111214.67
Kun Sun214212.80
Jiwu Jing323439.34
Sushil Jajodia493751839.16