Lenovo Flex System x240 M5 User's Guide download pdf (Page 21)

Lenovo Flex System x240 M5 21

Flex System Storage Expansion Node

The x240 M5 supports the attachment of the Flex System Storage Expansion Node. The Flex System

Storage Expansion Node provides the ability to attach another 12 hot-swap 2.5-inch HDDs or SSDs

locally to the attached compute node. The Storage Expansion Node provides storage capacity for

Network Attach Storage (NAS) workloads, which provides flexible storage to match capacity,

performance, and reliability needs.

The following figure shows the Flex System Storage Expansion Node attached to a compute node.

Figure 6. Flex System Storage Expansion Node (right) attached to the x240 M5 (left)

The ordering information for the Storage Expansion Node is shown in the following table.

Table 13. Ordering part number and feature code

Part number Feature code Description Maximum

supported

68Y8588 A3JF Flex System Storage Expansion Node 1

The Storage Expansion Node has the following features:

Connects directly to supported compute nodes via a PCIe 3.0 interface to the compute node's



expansion connector (see Figure 3).

Supports 12 hot-swap 2.5-inch drive, accessible via a sliding tray.



Supports 6 Gbps SAS and SATA drives, both HDDs and SSDs.



Based on an LSI SAS2208 6 Gbps RAID on Chip (ROC) controller.



Supports RAID 0, 1, 5, 10, and 50 as standard. JBOD also supported. Optional RAID 6 and 60 with a



Features on Demand upgrade.

Optional 512 MB or 1 GB cache with cache-to-flash super capacitor offload.



Note: The use of the Storage Expansion Node requires that the x240 M5 Compute Node have both

processors installed.

For more information, see the Lenovo Press Product Guide: http://lenovopress.com/tips0914

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Lenovo Flex System x240 M5 User's Guide Page 21