Lenovo ThinkSystem DE240S 7Y68A000WW

The ThinkSystem DE2000H supports attachment of up to three 2U expansion enclosures (ThinkSystem DE240S 2U24 SFF, ThinkSystem DE120S 2U12 LFF, or a combination of the ThinkSystem DE240S and DE120S). Intermix of 2U24 SFF and 2U12 LFF expansion enclosures behind a 2U24 SFF or 2U12 LFF controller enclosure is supported. The expansion enclosures can be added to the system non-disruptively.

Each ThinkSystem DE Series expansion enclosure ships with two SAS I/O expansion modules. Each I/O expansion module provides four external 12 Gb SAS x4 ports (Mini-SAS HD SFF-8644 connectors labelled Port 1-4) that are used for connections to the ThinkSystem DE2000H and for daisy chaining the expansion enclosures between each other.

Two expansion ports on the Controller A are connected to the Ports 1 and 2 on the I/O Module A in the first expansion enclosure in the chain, and the Ports 3 and 4 on the I/O Module A in the first expansion enclosure are connected to the Ports 1 and 2 on the I/O Module A in the adjacent expansion enclosure, and so on.

Two expansion ports on the Controller B are connected to the Ports 1 and 2 on the I/O Module B in the last expansion enclosure in the chain, and the Ports 3 and 4 on the I/O Module B in the expansion enclosure are connected to the Ports 1 and 2 on the I/O Module B in the adjacent expansion enclosure, and so on.

Lenovo Press - https://lenovopress.com/lp0881-lenovo-thinksystem-de2000h-hybrid-storage-array