If I am right, you are unable to get the datastore because, the vmkernel IP is not available. i have read somewhere in the docs or talks, without the vmkernel IP, the datastore will not get mounted because of a co-relation of the vmkernel ip and the datastore ID, ie the UUID.
Please try to roll back or try to have a valid vmkernel ip which is reachable, then try to check you config.