Error during the configuration of the host: NFS Error: Unable to Mount filesystem
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Error during the configuration of the host: NFS Error: Unable to Mount filesystem

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Article ID: 340065

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Updated On:

Products

VMware

Issue/Introduction

This error may occur adding or accessing an NFS datastore or media store:
Error during the configuration of the host: NFS Error: Unable to Mount filesystem: Unable to connect to NFS server


Environment

VMware vCenter Lab Manager 2.5.x
VMware vCenter Lab Manager 2.4.x

Resolution

Note: Do not set up NFS datastores through the vSphere Client on the ESX Server system. Unlike VMFS datastores, NFS datastores created through the vSphere Client are not recognized by Lab Manager. Such datastores conflict with the creation of NFS datastores through the Lab Manager Web console.

NFS Server

  • Ensure the NFS server supports NFSv3 over TCP
  • The NFS server must be accessible in read-write mode by all Managed Server (ESX) systems
  • The NFS server must allow read-write access for the root system account
  • The NFS export must be set for either no_root_squash, or chmod 1777
  • Ensure NFS daemons are running on the server ("rpcinfo -p localhost" or "service nfs status" )

VMKernel must be able to mount share

  • Check the VMkernel IP address:
    1. Using the vSphere Client, select the ESX server
    2. Select the Configuration tab
    3. Click Networking
    4. View the Networking diagram for the VMkernel (or click Properties, and click VMkernel in the Ports tab. If VMkernel is not listed, you must add it)
  • Ensure this IP is allowed to mount the NFS share by inspecting the export list
This issue may also occur if EtherChannel is configured and an incorrect NIC teaming policy is used.
To resolve this issue, ensure that the NIC teaming policy is set to a route base on IP HASH. For more information, see Sample configuration using EtherChannel, ESX and a Cisco switch (1004048).

Additional Information

For translated versions of this article, see: