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NFS mounts hung due to network or firewall issue

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Category:
ontap-9
Specialty:
nas
Last Updated:

Applies to

  • ONTAP
  • NFS

Issue

  • NFS mounts gets hung intermittently with the linux kernel error message "nfs: server 10.176.x.y not responding, timed out" on the NFS client.
  • Issue gets resolved after remounting the export.
  • Packet trace reveals that the TCP three-way handshake not getting completed.

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