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由于往返时间较长, NAS 协议会出现延迟

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14
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Category:
ontap-9
Specialty:
nas<a>NAS</a><a>CIFS</a><a>NFS</a><a>延迟</a><a>RTT</a><a>2009 000015</a><a>SRT</a>
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适用场景

  • NFS
  • CIFS
  • ONTAP 9

问题描述

  • 往返时间(RTT)是指请求通过网络从客户端传输到服务器所需的时间、加上响应通过网络从服务器传输到客户端所需的时间
  • 如果RTT较高、则NAS客户端将出现延迟
    • 例如、用户觉得打开或保存文件需要很长时间
  • 数据包跟踪中的服务响应时间(SRT)是指请求与相应响应之间的时间
    • 在服务器端数据包跟踪上、SRT用于测量服务器在发送响应之前处理客户端请求所用的时间
    • 在客户端数据包跟踪上、SRT可测量客户端等待服务器的重新接收所花费的时间
      • 在客户端数据包跟踪上、SRT等于RTT

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