Ok, after working with Neil Brown (I assume the architect of MDADM) he asked me a few questions and identified the issue as being with nfs-utils.
>It is trying an NFSv4 mount and not falling back to NFSv3 when that doesn't
>work. This is fixed in nfs-utils 1.2.2 (you can check the version you have
>installed with "showmount -v").
>
>If you explicitly give
# mount -t nfs -o vers=3 etc.
>it should work.
And this did the trick. Forcing version=3 allowed me to mount the nfs share. The question becomes why NFS3?
Ok, after working with Neil Brown (I assume the architect of MDADM) he asked me a few questions and identified the issue as being with nfs-utils.
>It is trying an NFSv4 mount and not falling back to NFSv3 when that doesn't
>work. This is fixed in nfs-utils 1.2.2 (you can check the version you have
>installed with "showmount -v").
>
>If you explicitly give
# mount -t nfs -o vers=3 etc.
>it should work.
And this did the trick. Forcing version=3 allowed me to mount the nfs share. The question becomes why NFS3?