I am trying to add a 70GB Pool called Data through NSSMU and when I go to add the pool I get a 604 error, unable to add pool to NDS? I've ran a DSRepair, I've tried different Pool names, I've tried to do POST 5 Schema enhancements ... still no go? When I try to do an ALT+F8 to update NDS I get the same error?

I do not have any errors or problems with the Tree and DSRepair comes up healthy? Any thoughts?