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ZZFS: A Hybrid Device and Cloud File System for Spontaneous Users
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You are not authorized to post comments.Michelle L. Mazurek, Carnegie Mellon University; Eno Thereska, Dinan Gunawardena, Richard Harper, and James Scott, Microsoft Research, Cambridge, UK
Good execution of data placement, caching and consistency policies across a user's personal devices has always been hard. Unpredictable networks, capricious user behavior with leaving devices on or off and non-uniform energy-saving policies constantly interfere with the good intentions of a storage system's policies. This paper's contribution is to better manage these inherent uncertainties. We do so primarily by building a low-power communication channel that is available even when a device is off. This channel is mainly made possible by a novel network interface card that is carefully placed under the control of storage system protocols. The design space can benefit existing placement policies (e.g., Cimbiosys [21], Perspective [23], Anzere [22]). It also allows for interesting new ones. We build a file system called ZZFS around a particular set of policies motivated by user studies. Its policies cater to users who interact with the file system in an ad hoc way—spontaneously and without pre-planning.
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title = {{ZZFS}: A Hybrid Device and Cloud File System for Spontaneous Users},
booktitle = {10th USENIX Conference on File and Storage Technologies (FAST 12)},
year = {2012},
address = {San Jose, CA},
url = {https://www.usenix.org/conference/fast12/zzfs-hybrid-device-and-cloud-file-system-spontaneous-users},
publisher = {USENIX Association},
month = feb
}
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