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The ServeRAID M5120 SAS/SATA Controller has the following specifications:
Eight external 6 Gbps SAS/SATA ports
Two external x4 mini-SAS connectors (SFF-8088)
Supports RAID levels 0, 1, and 10
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
Supports 512 MB battery-backed cache or 512 MB or 1 GB flash-backed cache
6 Gbps throughput per port
PCIe x8 Gen 3 host interface
Based on the LSI SAS2208 6 Gbps ROC controller
Supports connectivity to the EXP2512 and EXP2524 storage expansion enclosures
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
8
17
9
28