Maximum supported volumes reached

Products

• VMware vCenter Server
• VMware vSphere ESXi

Issue/Introduction

Summary

The number of NFS volumes that can be mounted on the ESX host reaches the maximum limit.

Example

When you are mounting a NFS volume, if NFS reaches the maximum number of supported volumes, the following error is displayed:

Failed to mount to server 10.x.x.x mount point /mnt/nfs-share/subdir/subdir. NFS has reached the maximum number of supported volumes.

Environment

VMware vSphere ESXi 8.0
VMware vSphere ESXi 6.7
VMware vSphere ESXi 6.5
VMware vSphere ESXi 7.0

Resolution

Reconfigure the maximum number of volumes that can be mounted by setting NFS under Advanced Settings.

See Increasing the default value that defines the maximum number of NFS mounts on an ESXi/ESX host for instructions about setting NFS.MaxVolumes. 

To edit advanced configuration options, select the ESXi host in the Inventory Panel, then navigate to Configuration > Software > Advanced Settings to launch the Settings window. 
Select and highlight any of the advance options listed below the User Interface page will display, the range from Default to the Maximum value that can be set.

Set these values:

• Under NFS, Select NFS.MaxVolumes: Limits the number of NFS datastores which can be mounted by the vSphere ESXi host concurrently. The default value (32 in ESXi 7.0) can can be increased to a maximum value of 256 (Note: This maximum applies since ESXi 5.x)