NFS Maximum supported volumes reached

Products

• VMware vCenter Server
• VMware vSphere ESXi

Issue/Introduction

NFS has reached the maximum number of supported volumes.

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

When you are mounting a NFS volume, if NFS reaches the maximum number of supported volumes, the following errors may be displayed:

• Failed to mount to server ##.##.##.## mount point /mnt/<NFS share>/<subdir>/<subdir>. NFS has reached the maximum number of supported volumes.
• An error occurred during host configuration. Operation failed, diagnostics report: Mount failed: Unable to complete Sysinfo operation. Please see the VMkernel log file for more details: NFS has reached the maximum number of supported volumes.

Environment

VMware vSphere ESXi 7.0
VMware vSphere ESXi 8.0

Resolution

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

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. 

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) can can be increased to a maximum value of 256.
  
  

 

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