User Guide

Note: The Relationship and TopSeller models of the ThinkSystem DE240S listed in this section ship with
four 1 m SAS cables; additional SAS cables that are listed in this section can be purchased for the system,
if needed.
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 DE6000F 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.
The connectivity topology for the DE Series expansion enclosures is shown in the following figure.
Figure 5. DE Series expansion enclosure connectivity topology
The following table lists ordering information for the supported expansion enclosure connectivity options.
Table 8. Expansion unit connectivity options
Description
Part
number
Feature
code
Quantity per
one expansion
enclosure
External MiniSAS HD 8644/MiniSAS HD 8644 0.5M Cable 00YL847 AU16 4
External MiniSAS HD 8644/MiniSAS HD 8644 1M Cable 00YL848 AU17 4
External MiniSAS HD 8644/MiniSAS HD 8644 2M Cable 00YL849 AU18 4
External MiniSAS HD 8644/MiniSAS HD 8644 3M Cable 00YL850 AU19 4
Lenovo ThinkSystem DE6000F All Flash Storage Array 13