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Figure 1.2 Book structure
calculation approach for determining the minimum number of replicas needed for
meeting data reliability requirement is proposed. Afterward, in this chapter we also
discuss the usage of the minimum replication for meeting data reliability requirement
as a benchmark, which can be applied for evaluating the cost-effectiveness and data
reliability assurance of various replication-based data storage approaches. Finally, the
evaluation for validating the minimum replication calculation approach is briefly pre-
sented.
In Chapter 6 , we present our cost-effective data reliability assurance mechanism
named Proactive Replica Checking for Reliability (PRCR) for maintaining the big
data in the Cloud in a cost-effective fashion. We first present the principle of data reli-
ability assurance by proactive replica checking. Then the structure and working pro-
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