NDLI: VIDAS: object-based virtualized data sharing for high performance storage I/O

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VIDAS: object-based virtualized data sharing for high performance storage I/O

Content Provider	ACM Digital Library
Author	Blas, Javier Carretero, Jesus Llopis, Pablo Isaila, Florin
Abstract	With scientific computing in the cloud gaining popularity and using every time larger data sets, high performance storage I/O in virtualized environments is substantially increasing in importance. However, exploiting the performance potential of the storage I/O on today's virtualized architectures is complex, due to the limitations of POSIX standard for storage I/O and the lack of integration of related mechanisms such as data sharing, storage I/O coordination, relaxing the consistency semantics, and data locality awareness. In this paper we propose VIDAS (Virtualized DAta Sharing), an object-based virtualized data store that targets to integrate the above mechanisms through a simple and powerful interface. VIDAS can be used to efficiently and consistently share access to externally stored data in virtualized environments based on a shared pool of storage objects. We show how VIDAS can be used for straightforwardly implementing I/O coordination and data sharing for two common high-performance patterns: inter-domain write-reader and inter-domain collective I/O. We present the implementation and evaluation of VIDAS for the Xen virtualization solution. In addition, we present a novel mechanism for efficiently sharing memory among an arbitrary number of virtual machines.
Starting Page	37
Ending Page	44
Page Count	8
File Format	PDF
ISBN	9781450319799
DOI	10.1145/2465848.2465851
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2013-06-17
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Cloud computing Data sharing Hpc Storage i/o virtualization
Content Type	Text
Resource Type	Article

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