Exam 2V0-15.25 Topic 1 Question 57 Discussion
Actual exam question for VMware's 2V0-15.25 exam
Question #: 57
Topic #: 1
Question #: 57
Topic #: 1
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?
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?
Suggested Answer: C Vote an answer
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 theexport 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 explicitread/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 operations.
Option A is incorrect because NFS servers are not validated by the HCL for write capability.
Option B (rebooting the host) is unnecessary and unrelated to permission enforcement.
Option D (MTU mismatch) may cause performance issues, not write-access failures.
Thus, the next troubleshooting step is to verify that the ESXi hosts haveread/write accesson the NFS share, makingCthe correct answer.
VCF documentation confirms that ESXi requires explicitread/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 operations.
Option A is incorrect because NFS servers are not validated by the HCL for write capability.
Option B (rebooting the host) is unnecessary and unrelated to permission enforcement.
Option D (MTU mismatch) may cause performance issues, not write-access failures.
Thus, the next troubleshooting step is to verify that the ESXi hosts haveread/write accesson the NFS share, makingCthe correct answer.
by Jack at Dec 16, 2025, 09:22 PM
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