The architecture of Tandem's NonStop system

  • Authors:
  • Dennis McEvoy

  • Affiliations:
  • -

  • Venue:
  • ACM '81 Proceedings of the ACM '81 conference
  • Year:
  • 1981

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Abstract

A Tandem T16 computer system is a network of up to 256 nodes. Each node consists of two to sixteen processors. The system had three major design goals: (1) Continuous data availability. (2) Modular growth by adding processing elements to a node. (3) Support of a network of geographically distributed nodes for on-line transaction processing. This talk will sketch Tandem's approach to continuous data availability. At the hardware level, NonStop is achieved by designing a single-fault tolerant system. A Tandem system has two or more modules and paths for each function. In addition, the system design addresses issues such as power failure, on-line maintenance, and reconfiguration.