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NAS protocols experience latency due to long round trip times

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987
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Category:
ontap-9
Specialty:
nas
Last Updated:

Applies to

  • NFS
  • CIFS
  • ONTAP 9

Issue

  • Round trip time (RTT) is the time it takes for a request to travel from the client to the server over the network, added to the time it takes time for the response to travel from the server to the client over the network
  • if RTT is high, the NAS client will experience latency
    • e.g. the user feels that it takes a long time to open or save a file
  • The service response time (SRT) in a packet trace is the time between a request and the corresponding response
    • On a server-side packet trace, SRT measures how much time the server spent processing a client's request before sending a response
    • On a client-side packet trace, SRT measures how much time the client spent waiting for the server's reponse to arrive
      • on a client-side packet trace, SRT equals RTT

 

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