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Gribble, "Tales of the tail: Hardware, os, and application-level sources of tail latency," in ACM SoCC'14, 2014.
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Gray, "To blob or not to blob: Large object storage in a database or a filesystem?" Microsoft Research, Tech. García-López, "Actively measuring personal cloud storage," in IEEE CLOUD'13, 2013, pp. Matthews, "The good, the bad and the ugly of consumer cloud storage," ACM SIGOPS Operating Systems Review, vol. Zhang, "Towards network-level efficiency for cloud storage services," in ACM IMC'14, 2014. Dai, "Efficient batched synchronization in dropbox-like cloud storage services," in ACM/IFIP/USENIX Middleware'13, 2013, pp.
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Pras, "Benchmarking personal cloud storage," in ACM IMC'13, 2013, pp. Pras, "Inside dropbox: understanding personal cloud storage services," in ACM IMC'12, 2012, pp. Research, "The personal cloud: Transforming personal computing, mobile, and web markets.", 2011. We believe that our dataset provides unique opportunities for extending research in the field. Moreover, based on our analysis, we suggest improvements to U1 that can also benefit similar Personal Cloud systems.įinally, we contribute our dataset to the community, which is the first to contain the back-end activity of a large-scale Personal Cloud. Our analysis includes the study of the storage workload, the user behavior and the performance of the U1 metadata store. Second, by means of tracing the U$1$ servers, we provide an extensive analysis of its back-end activity for one month. To our knowledge, this is the first research work to describe the internals of a large-scale Personal Cloud. We first detail the U$1$ architecture, core components involved in the U1 metadata service hosted in the datacenter of Canonical, as well as the interactions of U$1$ with Amazon S3 to outsource data storage. In this paper, we focus on understanding the nature of Personal Clouds by presenting the internal structure and a measurement study of UbuntuOne (U1). Unfortunately, very little is known about the internal operation and general characteristics of Personal Clouds since they are proprietary services. Personal Cloud services, such as Dropbox or Box, have been widely adopted by users.
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