Sorry, but I don't think there is a way to see what individual vol usage in the cache is - as far as I'm aware, the stats only give usage, inserts, ejects, invalidates, etc across the whole cache. Would be nice if we could though...
By the way, 97% usage is a good thing. Your cache should be as close to full as possible. It will keep inserting blocks until full, then you would see blocks being ejected (extremely overly simplified, but to illustrate the point).
Craig
