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Constructing a Memory-Based Distributed Code Storage on Networked Diskless Embedded Systems

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4 Author(s)
Tai-Yi Huang ; Dept. of Comput. Sci., Nat. Tsing Hua Univ., Hsinchu ; Tsung-Yen Chen ; Po-Yu Chuang ; Tsung-Hao Li

Advances in networking and microprocessor technology have enabled the development of a variety of small, low-cost, and resource-limited embedded systems. Such an embedded system is often diskless due to the weight, size, and cost of a disk. Because of the availability of inexpensive high-speed network cards, most embedded systems are networked, wired or wireless. We propose and implement a memory-based distributed code storage called NFC (networked file cache) for networked diskless embedded systems. NFC utilizes and integrates all available memory resources in a network to form a large-scaled code storage to which all applications in all nodes are allowed to access. To efficiently locate a file in NFC, we present a one-hop file lookup algorithm and a set of cache management algorithms dealing with file migrations and replications. In comparison with a client-server approach, the experimental results show that NFC successfully integrates memory resources in a network to significantly extend code storage and reduce file-access time of a diskless embedded system

Published in:

Parallel and Distributed Systems, 2005. Proceedings. 11th International Conference on  (Volume:2 )

Date of Conference:

22-22 July 2005