The 3.5-inch drive has reigned for years in enterprise storage arrays, but a viable challenger has appeared on the scene. In an exclusive review of Infortrend’s recently released EonStor B12S storage array, Mario Apicella finds a convincing case for 2.5-inch drives.The end result is “a system that delivers performance and reliability comparable with large arrays — not to mention a variety of redundancy features — and all within a smaller footprint and with lower energy consumption. “Notably, Infortrend was the first vendor to market with a storage enclosure based on [small form factor] drives, but Xyratex announced a 2U enclosure soon after.”