The IBM 2072 FlashSystem 5035 SFF Control Enclosure Model 3N4 features dual node canisters with a six-core processor and up to 64 GB cache (system total) in a compact 2U, 19-inch rack mount enclosure. 10 Gb iSCSI connectivity is standard, with optional 16 Gb FC, 12 Gb SAS, 10 Gb iSCSI, and 25 Gb iSCSI connectivity. It has twenty-four 2.5-inch SAS drive slots and supports the attachment of up to twenty 2U expansion enclosures or up to eight 5U expansion enclosures. This delivers support for up to 504 drives. FlashSystem 5030 supports two-way system clustering including Hyperswap, data reduction pools with deduplication and compression, and encryption of data at rest.