I'm sorry, I am unable to answer specifically.
1. Storage consultant is so broad a category, it could relate to a whole lot of things: Architecture, products, strategic direction, etc. As such, the salary for such a position would vary a lot and depend on what your industrial experience was "before" you decide to become a consultant.
2. Storage Administrator is also somewhat vague. Do you mean Systems Administrator for a pool of storage products?
Bottom line: Titles do not drive compensation. It's your "experience" and previous accomplishments that will cause a company to decide what they'll pay.
If I misunderstood, ask again, and please be more specific.
This was first published in April 2001