User Guide

Expansion enclosures
The ThinkSystem DS4200 supports attachment of up to nine ThinkSystem DS Series or up to three Lenovo
Storage D3284 expansion enclosures. Intermix of DS Series LFF and SFF enclosures is supported. Intermix
of DS Series and D3284 expansion enclosures is not supported. The enclosures can be added to the system
non-disruptively.
For the models of the Lenovo Storage D3284 expansion enclosures, refer to the Models section of the Lenovo
Storage D3284 Product Guide:
http://lenovopress.com/lp0513#models
Note: The D3284 expansion enclosures shipped prior to March 2, 2018 support only JBOD connectivity;
EBOD connectivity to the DS4200 storage systems is not supported. The D3284 expansion enclosures
shipped on or after March 2, 2018 support JBOD and EBOD connectivity.
The following table lists the relationship models of the ThinkSystem DS Series expansion enclosures.
Table 6. ThinkSystem DS Series Expansion Unit relationship models
Description
Part
number
SFF models
Lenovo ThinkSystem DS Series Dual IOM SFF Expansion Unit (US English documentation) 4588A21*
Lenovo ThinkSystem DS Series Dual IOM SFF Expansion Unit (Simplified Chinese documentation) 4588A2C^
Lenovo ThinkSystem DS Series Dual IOM SFF Expansion Unit (Japanese documentation) 4588A2J**
LFF models
Lenovo ThinkSystem DS Series Dual IOM LFF Expansion Unit (US English documentation) 4588A11*
Lenovo ThinkSystem DS Series Dual IOM LFF Expansion Unit (Simplified Chinese documentation) 4588A1C^
Lenovo ThinkSystem DS Series Dual IOM LFF Expansion Unit (Japanese documentation) 4588A1J**
* Available worldwide (except China and Japan).
^ Available only in China.
** Available only in Japan.
The following table lists the CTO base models for the DS Series Expansion Units.
Table 7. ThinkSystem DS Series Expansion Unit CTO base models
Description
Machine
Type-Model
Feature
code
Lenovo ThinkSystem DS Series SFF Expansion Unit (2x PCMs, no IOMs) 4588-HC2 AU26
Lenovo ThinkSystem DS Series LFF Expansion Unit (2x PCMs, no IOMs) 4588-HC1 AU25
Configuration notes:
For Relationship models, two SAS I/O expansion modules are included in the model configuration.
For CTO models, two SAS I/O expansion modules (feature code AU2K) must be selected during the
configuration process.
Lenovo ThinkSystem DS4200 Storage Array (withdrawn product) 13