NDLI: CSHFt: A Composite Fault-Tolerant Architecture and Self-Adaptable Hierarchical Fault-Tolerant Strategy for Satellite System

Content Provider	IEEE Xplore Digital Library
Author	Hao Zhou Jingfei Jiang
Copyright Year	2011
Abstract	Nowadays, building parallel system with high-performance commercial off-the-shelf (COTS) chips becomes the main way to improve satellite system performance greatly. System reliability is a tough issue which needs to be solved by more effective fault-tolerant scheme. Centralized fault-tolerant scheme has the risk of single point of failure (SPOF), while distributed fault-tolerant scheme is much complex and introduces large overhead. Both of these traditional methods have their own drawbacks. This paper proposes a composite self-adaptable hierarchical fault-tolerant (CSHFt) scheme which effectively integrates and expands the ideas of centralized and distributed fault-tolerant methods. It constructs a composite and symmetrical system architecture supporting both fault-tolerant methods simultaneously and realizes the self-adaptable hierarchical fault-tolerant strategy. CSHFt scheme executes system fault tolerance in the sequence of 'first centralized then distributed'. System switches its fault-tolerant mode actively according to its performing history. By combining and completing two traditional methods, CSHFt scheme eliminates the risk of SPOF, reduces the overall complexity and overhead of system fault tolerance and enhances system's real-time feature. System failure only occurs when all the system nodes are broken, which makes system highly reliable. Based on the prototype system, we verify the practical CSHFt scheme. Its performance is also analyzed and evaluated.
Starting Page	333
Ending Page	337
File Size	393035
Page Count	5
File Format	PDF
ISBN	9781457703270
DOI	10.1109/DCABES.2011.35
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-14
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fault tolerance Fault-tolerant strategy Satellites Fault tolerant systems Nominations and elections Hierarchical strategy Computer architecture Self-adaptable Complexity theory Satellite system Fault-tolerant architecture Composite architecture
Content Type	Text
Resource Type	Article

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