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Intermittent Remote I/O errors due to NFS3ERR_SERVERFAULT

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Category:
ontap-9
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nas
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Applies to

  • ONTAP 9.10.1
  • SnapMirror Synchronous
  • NFSv3

Issue

  • Client is facing below intermittent errors when performing touch/cp on the volume over NFSv3
cp: cannot create regular file 'small-file-283': Remote I/O error
cp: cannot create regular file 'small-file-368': Remote I/O error
cp: cannot create regular file 'small-file-492': Remote I/O error
  • Packet traces show server returning NFS3ERR_SERVERFAULT at times of the Remote I/O error

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