Re-attach NFS share on ESX after connection loss

ESXi 5.x

To remove a datastore:

1. To list the mounted datastores on the host:
 
# esxcli storage nfs list

2. Make a note of the NFS datastore from step 1. Run this command to delete the NFS mount:
 
# esxcli storage nfs remove -v NFS_Datastore_Name

Note: This operation does not delete the information on the share, it unmounts the share from the host. If the NFS datastore is being used by either a virtual machine or a third party script, you may see this error:

Error performing operation: NFS Error: Unable to Unmount filesystem: Busy.

3. To add the datastore, run this command to mount the NFS datastore: 

# esxcli storage nfs add -H NFS_IP|NFS_HOSTNAME -s Share_mount_point_on_the_NFS -v DatastoreName

On a working cluster, you only need to do this on one node, the others will pickup.
 

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