I'm seeing this exact error on a clean install on SCVMM 2012 R2 (on Server 2012 R2):
http://blogs.technet.com/b/scvmm/archive/2012/08/21/kb-adding-a-san-storage-provider-in-system-center-2012-virtual-machine-manager-fails-with-smi-s-error-26100.aspx
There's no storage service installed on the VMM server, but there's also no SCXStorage folder on the installation media, nor any StorageService.msi for me to manually resolve the issue as described in the KB. Just for kicks I tried installing the StorageService.msi from the SCVMM 2012 installation media, but that certainly didn’t work.
Any suggestions? I can’t add any storage providers so it’s a bit of a show-stopper…