VCP-VMC 2024 Question 210
Select 3A VMware administrator is troubleshooting a datastore issue in a vSphere environment. The datastore, backed by an NFS share, has become inaccessible to all ESXi hosts in the cluster. Upon investigation, the administrator notices the following:
- The NFS server is reachable via ping from the ESXi hosts.
- The NFS share permissions have not been modified.
- The ESXi hosts report 'Permission Denied' when attempting to mount the NFS datastore.
What steps should the administrator take to resolve this issue?
- A
Verify the NFS version compatibility between the ESXi hosts and the NFS server.
- B
Ensure the NFS server export is configured to allow access from the ESXi hosts' IP addresses.
- C
Restart the NFS server services to refresh the share configuration.
- D
Reboot all ESXi hosts in the cluster to re-establish the NFS connection.
- E
Check the firewall settings on the ESXi hosts to ensure the NFS traffic is not being blocked.
Show answer and explanation
Correct answers: A, B, E
Explanation
The reported issue stems from an NFS datastore becoming inaccessible, with the error 'Permission Denied.' This typically indicates a configuration mismatch or a connectivity issue between the ESXi hosts and the NFS server. Verifying NFS version compatibility ensures that the server and hosts can communicate using a supported protocol. Checking the NFS server export configuration is crucial to confirm that the ESXi hosts' IP addresses are granted proper access. Lastly, inspecting the ESXi firewall settings ensures that NFS-related traffic is not inadvertently blocked. Rebooting the hosts or restarting the NFS server services are not appropriate solutions for this scenario based on the evidence provided.
- A. Correct.
Verifying the NFS version compatibility is critical because an unsupported NFS version can cause the ESXi hosts to fail when attempting to mount or access the datastore.
- B. Correct.
The NFS server export must allow access from the IP addresses of the ESXi hosts. If the export permissions are misconfigured, the hosts will encounter 'Permission Denied' errors.
- C. Incorrect.
Restarting the NFS server services is not necessary in this scenario because the share configuration has not been reported as modified or corrupted, and the server is reachable.
- D. Incorrect.
Rebooting the ESXi hosts is generally not required for resolving datastore access issues, as the problem lies with the NFS configuration or connectivity, not the hosts themselves.
- E. Correct.
The firewall settings on the ESXi hosts should be checked to ensure that ports required for NFS traffic (e.g., port 2049) are not being blocked, as this could prevent access to the datastore.