Connectivity to NFS Server Lost
An event indicates that the ESXi/ESX host has lost connectivity to the NFS server. For example, if an NFS volume nfs-share is mounted from host nfs-server:/share, the following message displays in the ESXi/ESX logs (located at /var/log/vmkernel on ESX and /var/log/messages on ESXi) if connectivity to the NFS server is lost:
Lost connection to server nfs-server mount point /share, mounted as 1264e433-5854ee53-0000-000000000000 ("nfs-share")
As a result, the NFS volume (and virtual machines residing in the affected volume) are unavailable to the ESXi/ESX host.
This event is normally received in an environment where NFS was already working and for some reason the NFS connectivity was lost.
The first troubleshooting step is to verify that the NFS server is up and running without issues. Check if other hosts using the same NFS mount are experiencing the same problem and check NFS server status and share points.
Connectivity to NFS Server Restored
If an NFS volume nfs-share is mounted from the host nfs-server:/share, the following message displays in the ESX logs (located in /var/log/vmkernel on ESX and /var/log/messages on ESXi) when connectivity to the NFS server is restored:
Restored connection to server nfs-server mount point /share, mounted as 1264e433-5854ee53-0000-000000000000 ("nfs-share")
This event informs you that the ESXi/ESX host has recovered from the loss of connectivity to the reported NFS server. No actions are required.