International Journal of Multidisciplinary Research and Development

International Journal of Multidisciplinary Research and Development






ISSN Online: 2349-4182
ISSN Print: 2349-5979


International Journal of Multidisciplinary Research and Development
International Journal of Multidisciplinary Research and Development
Vol. 2, Issue 4 (2015)

Towards secure and consistency dependable in large cloud systems


Sahana M S, Chanchal Antony

Cloud storage services have become very popular due to their well security, availibilty and cost effective. To provide presence always-on access, a cloud service provider (CSP) maintains several replicas for each piece of data on geographically distributed servers. A key problem of using the replication Technique in clouds is that it is very expensive and crude to achieve strong consistency on everywhere. So first present a causal consistency as a service (CaaS) model, which consists of a large data cloud and several small audit clouds. In the CaaS model, a data cloud is maintained by a CSP, that constitute an audit cloud can verify whether the data cloud provides the promised level of consistency or not. So propose a two-level auditing, which only requires a loosely synchronized clock in the audit cloud. Then design different algorithms to quantify the seriousness of violations with two metrics: the commonality of violations, and the staleness of the value of a read. Finally, a heuristic auditing strategy (HAS) method is used to reveal as many violations as possible.
Pages : 145-150 | 1124 Views | 332 Downloads
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