How to clear AIX NFS cache on a server

Do the following on a server that is having problem exporting NFS mounts
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1) Move the currents exports file to another name
       mv /etc/exports /etc/exports.old

2) Create a new exports file
       touch /etc/exports

3)  Unexport everything
       exportfs -ua

4)  Stop NFS
       stopsrc -g nfs

5)  Stop