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For some NFSv4.1 clients, READ/WRITE fail, but directories can be traversed / listed

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17
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Category:
ontap-9
Specialty:
nas
Last Updated:

Applies to

  • ONTAP 9
  • NFSv4.1
  • Linux client

Issue

  • Specific NFSv4.1 clients lose the ability to perform READ/WRITE operations to an export
  • Unmounting and remounting the export without changing mount options does not fix the issue, even if the impacted export was the only mounted export
  • Packet captures collected when the issue is occurring show the client sending SEQUENCE calls, to which ONTAP sends back NFS4ERR_SEQ_MISORDERED

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