German to English Tech/Engineering Engineering: Industrial Logistics: Warehouse storage

The paragraph that I'm currently translating explains how items are sorted and stored at XXX's warehouse. High-turnover items (A items according to an ABC analysis) are stored at the "Greiflager," while high-bay storage and mobile storage systems are used for the remaining ones. My problem is not that I don't understand what Greiflager means, but rather that I can't think of the correct term in English for it (not to mention that it's not in my dictionaries or glossaries) and haven't been able to come up with a convincing term. Maybe it's because logistics systems tend to be a bit more specific and talk about fixed bins for high-turnover items and such, but my brain doesn't seem to want to come up with an answer. I've been toying with using "readily accessible," but that doesn't quite cut it. Any takers?