[1239] in Privacy_Forum
[ PRIVACY Forum ] Google: "Availability in Globally Distributed
daemon@ATHENA.MIT.EDU (privacy@vortex.com)
Fri Feb 25 21:42:56 2011
Date: Fri, 25 Feb 2011 18:23:17 -0800
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Google: "Availability in Globally Distributed Storage Systems"
http://j.mp/dPqtHC (Google Research [PDF])
Highly available cloud storage is often implemented with
complex, multi-tiered distributed systems built on top
of clusters of commodity servers and disk drives. Sophisticated
management, load balancing and recovery
techniques are needed to achieve high performance and
availability amidst an abundance of failure sources that
include software, hardware, network connectivity, and
power issues. While there is a relative wealth of failure
studies of individual components of storage systems,
such as disk drives, relatively little has been reported so
far on the overall availability behavior of large cloudbased
storage services.
We characterize the availability properties of cloud
storage systems based on an extensive one year study of
Google's main storage infrastructure and present statistical
models that enable further insight into the impact
of multiple design choices, such as data placement and
replication strategies.
- - -
--Lauren--
Lauren Weinstein (lauren@vortex.com): http://www.vortex.com/lauren
Co-Founder: People For Internet Responsibility: http://www.pfir.org
Founder:
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