By looking at Oxford's Dictionary, the definition of Storage is pretty straight-forward:
The action or method of storing something for future use.
But it confuses me on some aspects, for example
Cooper had put much of the furniture into storage
That means that Cooper stored furniture, and that's ok.
If Cooper's responsibility is always to store, what does this make him? I thought of the words Storager or Storer, but couldn't find a definition for either of those in a dictionary, and I don't actually know if the nomenclature is correct.
So, for a phrase like
Cooper stores furniture very well, he's a really good ...
What should I call Cooper?