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Personal cloud storage is rapidly gaining popularity. A number of Internet service providers, such as Google and Baidu, entered this emerging market and developed a variety of cloud storage services. These ubiquitous services allow people to access personal files all over the world at anytime. With the prevalence of mobile Internet and rich media on web, more and more people use cloud storage for storing working documents, music, private photos and movies. Nevertheless, the size of the media files is often beyond the upper limit that a normal form-based file upload allows hence dedicated large-file upload services are required to be developed. Although various cloud vendors offer versatile cloud storage services, very little is known about the detailed development and deployment of the large-file upload services. This paper proposes a complete solution of large-file upload service, with the contributions in …