Why does NFS client shows "Input/output errors"while transferring huge data?

Solution Verified - Updated -

Issue

  • NFS client shows "Input/output errors" while transferring huge data.
  • Performing copy operation from/to NFS share fails with following error.
# cp /exports/isos/data.iso /test/exports/data.iso 
cp: closing `/test/exports/data.iso': Input/output error

Environment

  • Red Hat Enterprise Linux (All versions)
  • NFS

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