ONTAP Discussions

NFS/CFS network Troubleshooting process to go through.

Larry1961
884 Views

Hi,

 

Does someone have a basic process/procedure to go through where a client from a Window/Linux machine cannot contact the nfs/CFS shares due to a probably network issue? I tend to get confused with all the different IP in play across this scenario.

 

many thanks

Larry

5 REPLIES 5

SpindleNinja
832 Views

Depends on the error that the client is getting.   if it's something like "cannot connect" or just spins,  I will do pings between the client to the Netapp's NAS Data lif and from the Netapp's data lif to the client 

 

If it's like "you do not have permissions". you'll need to check the share permission on the Netapp

 

Few other helpful links for you - 

https://docs.netapp.com/us-en/ontap-cli-9141//network-ping.html 

you'll want to ping in the context of the vserver (SVM) and lif 

 

https://docs.netapp.com/us-en/ontap/networking/commands_for_diagnosing_network_problems.html

 

wareer
332 Views

Ashun
292 Views
hi  larry
 
 
I hope my reply is helpful to you
 
1. Identify the Environment
   Determine the Client OS: 
           Windows or Linux.
   Identify the NFS/CFS  IP Address:
           Ensure that the correct IP address is configured
 
2. Verify Network Connectivity
   Ping the NFS/CFS IP:
          Run the Ping command to ensure reachability
                 network ping 
   Check Routing: 
          Check that the route configuration is correct
                 network route show
 
3. Check Firewall Settings
     Ensure that the firewall allows the traffic required by NFS/CFS
 
4. Network Configuration Issues
    Ensure there are no IP address conflicts on the network.
    Check that the subnet mask and gateway Settings are correct
 
5. Testing with Other Clients
    If possible, test connectivity from another client machine to determine if the issue is isolated to one client or more widespread.
 

Larry1961
291 Views
Yes, thank you very much.
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Sanaman
271 Views

Your best bet is wireshark on client and tcpdump on NetApp side.

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