To deliver data-centric cloud computing services
heavily relies on data networks between cloud
providers and consumer premises. The continuous
and rapid growth of data hosted in external private
clouds accelerates downstream network-bandwidth
saturation and public cloud data-out overspends.
The consumer-initiated replication of cloud data to
consumer locality is a solution and known as clientside
cloud caching. This paper presents the core
mechanism of the cloud caching, called Cloud cache
replacement policy. Simulations shown that 1) Cloud
saved network bandwidth, data-out charge and data
loading time; 2) even Clouds performance minima
outperformed three well-known web cache replacement
policies across all performance metrics for almost
all test cases; 3) Cloud importantly attain optimal
hit and byte-hit ratios without sacrificing one to
the other.