VMware NFS has reached the maximum number of supported volumes

NFS has reached the maximum number of supported volumes. That’s the issue I ran into while building new hosts today at a client.

VMware NFS has reached the maximum number of supported volumes 1

You get this particular error when trying to mount more than 8 NFS LUNs on a host. Eight is the default maximum number of datastores that can be mounted on the hose with NFS. This is one of those errors that I run into whenever I build out NFS based hosts. It is not super hard to figure out how to fix but it is something I always forget to set. (Hint: I kind of wish VMware would default to a much larger number than 8).

To fix this super easy error, you need to go to the host’s Advanced System Settings and change the NFS.MaxVolumes from 8 to 256 (which is the max).

VMware NFS has reached the maximum number of supported volumes 2
VMware NFS has reached the maximum number of supported volumes 3

You can check out VMware’s KB article to also set TCP Heap Size and also TCP Heap Max settings which also can affect NFS.

Now next time I forget again, google can serve me this page as a reminder. 🙂

Happy Mounting!
Carlo

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