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Rev."],"published-print":{"date-parts":[[2008,10]]},"abstract":"<jats:p>Object-based Storage Device (OSD) is the foundation of the Object-based Storage System (OBSS).As the petabyte-scale OBSS includes thousands of OSDs, the performance, cost and power of single OSD must be considered together to build such a huge storage system The existing OSD based on server and general-purposed PC platform cannot have an excellent tradeoff among the three factor as they are not designed specifically for storage applications. An original OSD architecture based on the Intel IOP315 I\/O processor chipset is presented in this paper. The I\/O processor makes it powerful for the OSD to process the network communication protocol and the unique switch fabric of the chipset can further improve the I\/O performance through parallel data transfer in multiple I\/O channels. The experimental results show that the OSD performs well for system performance. 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