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"nfs: server not responding, still trying" because network is blocking NFS responses

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Category:
ontap-9
Specialty:
nas
Last Updated:

Applies to

  • ONTAP 9
  • NFS

Issue

  • Intermittently, NFS connection freezes
  • Client's event log says:
    • Jul 25 15:20:39 <hostname> kernel: nfs: server <name> not responding, still trying
      Jul 25 15:20:39 <hostname> kernel: nfs: server <name> not responding, still trying
      Jul 25 15:20:39 <hostname> kernel: nfs: server <name> not responding, still trying
      Jul 25 15:20:43 <hostname> kernel: nfs: server <name> OK
      Jul 25 15:20:43 <hostname> kernel: nfs: server <name> OK
      Jul 25 15:20:43 <hostname> kernel: nfs: server <name> OK
  • A dual sided packet trace shows that NFS responses sent by the ONTAP are not received by the client

 

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