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RPC timed our error while mounting NFS volume

I am getting below RPC timed out error while mounting one NFS volume from NetApp with NFS version 3. While mounting it is switching from TCP to UDP. With NFS version 4 i cannot mount it at all.

 

RPC.png

 

Any suggestions will be appreciated

 

Thank you

Re: RPC timed our error while mounting NFS volume

run the nfs show command and see if TCP is disabled

 

Example on 9.2

 

cluster1::> vserver nfs show
	     General                                              Default
Vserver      Access  v3       v4       v4.1     UDP      TCP      Windows User
------------ ------- -------- -------- -------- -------- -------- ------------
vs0          true    enabled  disabled disabled enabled  enabled  -
vs1          true    enabled  disabled disabled enabled  enabled  -
2 entries were displayed.
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