Dummynet: a simple approach to the evaluation of network protocols
ACM SIGCOMM Computer Communication Review
Venti: A New Approach to Archival Storage
FAST '02 Proceedings of the Conference on File and Storage Technologies
The effectiveness of deduplication on virtual machine disk images
SYSTOR '09 Proceedings of SYSTOR 2009: The Israeli Experimental Systems Conference
Modeling and emulation of internet paths
NSDI'09 Proceedings of the 6th USENIX symposium on Networked systems design and implementation
The Datacenter as a Computer: An Introduction to the Design of Warehouse-Scale Machines
The Datacenter as a Computer: An Introduction to the Design of Warehouse-Scale Machines
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Disk images play a critical role in multi-tenant datacenters. In this paper, the first study of its kind, we analyze operational data from the disk imaging system that forms part of the infrastructure of the Emulab facility. This dataset spans four years and more than a quarter-million disk image loads requested by Emulab's users. From our analysis, we draw observations about the nature of the images themselves (for example: how similar are they to each other?) and about usage patterns (what is the statistical distribution of image popularity?). Many of these observations have implications for the design and operation of disk imaging systems, including how images are stored, how caching is employed, the effectiveness of pre-loading, and strategies for network distribution.