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The ServeRAID M5120 SAS/SATA Controller has the following specifications:

Eight external 6 Gbps SAS/SATA ports

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Two external x4 mini-SAS connectors (SFF-8088)

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Supports RAID levels 0, 1, and 10

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Supports RAID levels 5 and 50 with optional M5100 Series RAID 5 upgrades



Supports RAID 6 and 60 with the optional M5100 Series RAID 6 Upgrade

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Supports 512 MB battery-backed cache or 512 MB or 1 GB flash-backed cache

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6 Gbps throughput per port

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PCIe x8 Gen 3 host interface

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Based on the LSI SAS2208 6 Gbps ROC controller

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Supports connectivity to the EXP2512 and EXP2524 storage expansion enclosures

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Cache upgrade required: The ServeRAID M5120 SAS/SATA Controller ships standard without a cache.

One of the available cache upgrades (81Y4484, 81Y4487, or 81Y4559) is required for the M5120 adapter

operations, and it must be purchased together with the controller.

For more information about the ServeRAID M5120, see the Lenovo Press Product Guide at

http://lenovopress.com/tips0858

The ServeRAID M5120 SAS/SATA Controller supports connectivity to the external expansion enclosures

that are listed in the following table. Up to nine expansion enclosures can be daisy-chained per one

M5120 external port. For better performance, distribute expansion enclosures evenly across both M5120

ports.

Table 22. External expansion enclosures

Part number

Description

70F0 / 70F1

Lenovo ThinkServer SA120

610012X

EXP2512 Storage Enclosure

610024X

EXP2524 Storage Enclosure

System x3100 M5

Maximum quantity supported per

one adapter