A Scalable Architecture for Clustered Network Attached Storage

  • Authors:
  • Jonathan D. Bright;John A. Chandy

  • Affiliations:
  • -;-

  • Venue:
  • MSS '03 Proceedings of the 20 th IEEE/11 th NASA Goddard Conference on Mass Storage Systems and Technologies (MSS'03)
  • Year:
  • 2003

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Abstract

Network attached storage systems must provide highly available access to data while maintaining high performance, easy management, and maximum scalability. In this paper, we describe a clustered storage system that was designed with these goals in mind. The system provides a unified file system image across multiple nodes, which allows for simplified management of the system. Availability is preserved with multiple nodes and parity-striped dataacross these nodes. This architecture provides two key contributions: the ability to use low-cost components to deliver scalable performance and the flexibility to specify redundancyand performance policy management on a file-by-file basis. The file system is also tightly integrated with standard distributed file system protocols thereby allowing it to be used in existing networks without modifying clients.