Lenovo x3755 M3 Product Manual page 12

The ServeRAID M1015 SAS/SATA Controller has the following specifications:
Two Mini-SAS internal connectors

Supports RAID levels 0, 1, and 10

Supports RAID levels 5 and 50 with optional ServeRAID M1000 Series Advanced Feature Key

6 Gbps throughput per port

Based on the LSI SAS2008 6 Gbps RAID on Chip (ROC) controller

PCI Express 2.0 x8 host interface

Configurable stripe size up to 64 KB
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The ServeRAID M5014 SAS/SATA Controller has the following specifications:
Two Mini-SAS internal connectors

Supports RAID levels 0, 1, 5, 10, and 50

Supports RAID 6 and 60 with the optional M5000 Advanced Feature Key

6 Gbps throughput per port

PCI Express 2.0 x8 host interface

Based on the LSI SAS2108 6 Gbps ROC controller

256 MB of onboard cache

Optional Intelligent Li-Ion-based battery backup unit with the ServeRAID M5000 Series Battery Kit

The ServeRAID M5015 SAS/SATA Controller has the following specifications:
Two Mini-SAS internal connectors

Supports RAID levels 0, 1, 5, 10, and 50

Supports RAID 6 and 60 with the optional M5000 Advanced Feature Key

6 Gbps throughput per port

PCI Express 2.0 x8 host interface

Based on the LSI SAS2108 6 Gbps ROC controller

512 MB of onboard cache

Standard Intelligent Li-Ion-based battery backup unit with up to 48 hours of data retention

For more information, see the list of Product Guides in the RAID adapters category:
http://www.redbooks.ibm.com/portals/systemx?Open&page=pg&cat=raid
System x3755 M3 12