By Geoffrey Blakeley
"This paper starts with literature
review of articles in cloud computing,
some of them describing how libraries
are incorporating and evaluating
the cloud. The author introduces
cloud computing definition, identifies
three-level of services (SaaS, PaaS,
and IaaS), and provides an overview
of major players such as Amazon,
Microsoft, and Google. Open source
cloud software and how private cloud
helps are discussed. Then he presents
case studies using different cloud
computing providers: case 1 of using
an IaaS provider Amazon and case 2
of using a PaaS provider Google. In
case 1, the author justifies the implementation
of DSpace on AWS. In case
2, the author discusses advantages
and pitfalls of PaaS and demonstrates
a small web application hosted in
Google AppEngine. Detailed analysis
of the TCOs comparing AWS with
local managed storage and servers
are presented. The analysis shows
that the cloud computing has technical
advantages and offers significant
cost savings when serving web applications.
Shifting web applications to
the cloud provides several technical
advantages over locally managed
servers. High availability, flexibility,
and cost-effectiveness are some of the
most important benefits. However,
the locally managed storage is still
an attractive solution in a typical case of 10TB storage. Since Amazon
offers lower storage pricing for huge
amounts of data, readers are recommended
to do their own analysis on
the TCOs." (Han)
Han, Yan. "Cloud Computing: Case Studies And Total Costs Of Ownership." Information Technology & Libraries 30.4 (2011): 198-206. Library, Information Science & Technology Abstracts. Web. 21 Apr. 2016.
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