IBM FlashSystem 5000 LFF Expansion Enclosure (2072-12G)

2072-12G is the IBM FlashSystem 5000 LFF expansion enclosure, a 2U unit with twelve slots for 3.5-inch large form factor SAS drives. It attaches to FlashSystem 5000 control enclosures over 12 Gb SAS; the FlashSystem 5010 and 5030 control enclosures in the same 2072 machine type each have a 12 Gb SAS port for expansion, and the FlashSystem 5100 model 4H4 attaches to the 12G, 24G and 92G expansion models.

The supported 3.5-inch drives are 7,200 RPM high-capacity nearline disks of 4 TB, 6 TB, 8 TB, 10 TB, 12 TB and 14 TB. A FlashSystem 5010 supports up to ten 2U expansion enclosures, or up to four 5U ones, in one SAS chain. Drives of the same form factor can be mixed in one enclosure, and LFF and SFF expansion enclosures can be mixed behind either an LFF or an SFF control enclosure. The SFF sibling is 2072-24G, the FlashSystem 5000 SFF expansion enclosure with 24 slots, and the 2072-92G is the 5U high-density LFF model.