NDLI: Integrated system models for reliable petascale storage systems

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Content Provider	ACM Digital Library
Author	Welch, Brent
Abstract	The big challenges facing petascale storage systems are not actually those of performanc or traditional fault tolerance schemes, but instead the challenges stem from the inherent complexity of large distributed systems. The best way to address these problems is to build a system model into the system itself, and have the system continuously monitor its current state as compared with the desired state according to the model. Change is applied to the model first, and then the system strives to achieve the new model. The hard part is defining a good model, building good support for introspection, and exploiting these features in the system design. This paper describes this problem in more detail, explains some of the techniques we have used in building the Panasas distributed storage system, and concludes with a summary of the open problems with building petascale storage systems.
Starting Page	12
Ending Page	16
Page Count	5
File Format	PDF
ISBN	9781595938992
DOI	10.1145/1374596.1374600
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2007-11-11
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Autonomics Panasas Cluster management Petascale
Content Type	Text
Resource Type	Article

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Integrated system models for reliable petascale storage systems