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Chapter 1. Introduction
The Lenovo Flex System Storage Expansion Node is a captive-mode storage enclosure that is dedicated to a
single compute node in the Lenovo Flex System Enterprise Chassis.
The storage expansion node is PCIe Generation 3 and SAS 2.1 compliant. It supports up to 12 SAS and
SATA 2.5-inch hot-swap hard disk drives and solid-state drives, and it supports JBOD configurations and
RAID 0, 1, 5, 6, 10, 50, and 60. Some RAID configurations require a Features on Demand key, an optional
512 MB or 1 GB flash/RAID adapter, or both.
The storage expansion node is supported in an Flex System Enterprise Chassis only, and it must be attached
to a 1-bay X-Architecture compute node. For information about supported compute nodes and support
requirements, see "Supported compute nodes" on page 2.
Attention: Before you connect a compute node to the storage expansion node, you must make sure that
the integrated management module II (IMM2) primary and backup firmware in the compute node is at
level ibm_fw_imm2_1aoo34x-1.xx_anyos_noarch or later. If the IMM2 firmware in the compute node is at
an earlier level when you connect the compute node to the storage expansion node, the firmware in the
storage expansion node will become corrupted and unrecoverable, and you will have to replace the storage
expansion node. For information about updating the firmware in the compute node, see the compute node
Installation and Service Guide.
This documentation provides the following information about setting up and troubleshooting the storage
expansion node:
• Installing the storage expansion node in the Flex System Enterprise Chassis
• Installing an optional flash/RAID adapter and drives in the storage expansion node
• Diagnosing problems
• Installing, removing, and replacing components
The storage expansion node comes with a limited warranty. For information about the terms of the warranty,
see the Warranty Information document for your storage expansion node. This document is available on the
product Documentation CD.
You can obtain up-to-date information about the storage expansion node at http://www.ibm.com/systems.
The storage expansion node might have features that are not described in the documentation that comes
with the product. The documentation might be updated occasionally to include information about those
features. Technical updates might also be available to provide additional information that is not included in
the storage expansion node documentation. To obtain the latest and most up-to-date documentation for
this product, go to the Lenovo product website.
You can subscribe to information updates that are specific to your compute node at
http://www.ibm.com/support/mynotifications.
Features and specifications
Use this table to view specific information about the Flex System Storage Expansion Node, such as
hardware features and the dimensions of the storage expansion node.
The following table is a summary of the features and specifications of the Flex System Storage Expansion
Node.
© Copyright Lenovo 2014, and 2012, 2015
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