Cisco网络卷管理白皮书(英文)

    The advancing technologies of network computing have led to more application-related computing functions to be shifted into the network. One application that is quickly moving into the network is the function of logical volume management for storage. This new technology opens up previously uncharted horizons in easier management and better return on investment by replacing multiple copies of host-based volume management with a single centralized copy. This opens the doors for true network computing and allows some critical host functions to move into the network.
  
    This paper evaluates the scalability characteristics of VERITAS Storage Foundation™ for Networks (VSFN) running on a Cisco MDS 9000 Advanced Services Module (ASM), as it now has the charter of performing multiple hosts’ volume management. The VSFN also has to cater to different applications and its I/O size and rate. It is critical for the enterprise to
  select the VSFN based on its rated Input/Output Operations per Second (IOPS) and throughput numbers. The essential characteristics of such a device will be its ability to perform optimally during peak bursts of I/O, as well as during sustained I/O loads.
  
    This paper publishes the VSFN performance numbers that Cisco Systems® has achieved
  during the laboratory testing. Specific tests were conducted using the traffic profiles of several applications in order to emulate near-real-life I/O traffic. The tests have been carefully designed to ensure that the VSFN is stressed based on I/O profiles of real-life applications. These tests highlight the scaling and performance characteristics of the ASM module.

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