Monday, August 30, 2010

Error mounting NFS Store from ESX

Just wanted to make a reminder to myself about what I encountered today:

“Just because you were told that there are no port restrictions between the 2 VLANs, don’t count on the information always being true.”


I was assisting a client move an NFS device for their vSphere environment today and kept getting the following error after re-IP-ing the device:

Error during the configuration of the host: NFS Error: Unable to Mount filesystem: The mount request was denied by the NFS server. Check that the export exists and that the client permitted to mount it



As it turns out after doing all the sanity checks on the NFS device’s management console, the problem was because there were port restrictions between the 2 VLANs.

As per the following VMware KB article:

The ports required are: 111 and 2049 on UDP and TCP

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