Design of an object-based storage device based on I/O processor

  • Authors:
  • Shuibing He;Dan Feng

  • Affiliations:
  • Huazhong University of Science and Technology, Wuhan, China;Huazhong University of Science and Technology, Wuhan, China

  • Venue:
  • ACM SIGOPS Operating Systems Review
  • Year:
  • 2008

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Abstract

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. Moreover, it provides characteristic of low cost and power.