2V0-15.25 · Question #35
An administrator has successfully mounted an NFS datastore as supplemental storage for a VMware Cloud Foundation (VCF) workload domain cluster. However, users report that data cannot be written to…
The correct answer is C. Verify that the NFS server permissions are not set to read-only for the ESX host. In VMware Cloud Foundation 9.0, supplemental storage such as NFS is fully supported for workload domains when configured correctly. When an NFS datastore mounts successfully in vSphere but users cannot write data, the issue almost always lies in the export permissions on the…
Question
An administrator has successfully mounted an NFS datastore as supplemental storage for a VMware Cloud Foundation (VCF) workload domain cluster. However, users report that data cannot be written to the datastore. The administrator confirms the following:
- The NFS share is visible in the vSphere Client.
- Connectivity to the NFS server from the Virtual Machine.
What action should the administrator take next to troubleshoot the issue?
Options
- AVerify the NFS server is listed in the VMware Hardware Compatibility Guide.
- BReboot the ESX host to clear any file locks.
- CVerify that the NFS server permissions are not set to read-only for the ESX host.
- DVerify the MTU size configuration on the NFS VMkernel port group.
How the community answered
(26 responses)- A4% (1)
- B15% (4)
- C73% (19)
- D8% (2)
Explanation
In VMware Cloud Foundation 9.0, supplemental storage such as NFS is fully supported for workload domains when configured correctly. When an NFS datastore mounts successfully in vSphere but users cannot write data, the issue almost always lies in the export permissions on the NFS server. vSphere will allow mounting a read-only NFS export, but write operations will fail silently at the VM or guest OS level. VCF documentation confirms that ESXi requires explicit read/write export permissions, typically configured per-host or by IP subnet, on the NFS server. Even if network connectivity and VM- level access appear healthy, incorrect server-side permissions prevent ESXi from executing write
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