Lenovo System x3250 M5 Product Manual page 18

Supports RAID 0, 1, 1E, and 10
Connects to up to four SAS or SATA drives (SAS expanders are not supported.)
The ServeRAID M1115 SAS/SATA Controller has the following specifications:
Eight internal 6 Gbps SAS/SATA ports
Two x4 mini-SAS internal connectors (SFF-8087)
Supports connections to SAS/SATA drives and SAS Expanders
Supports RAID levels 0, 1, and 10
Supports RAID levels 5 and 50 with optional M1100 Series RAID 5 upgrades
Up to 6 Gbps throughput per port
PCIe 2.0 x8 host interface
Based on the LSI SAS2008 6 Gbps ROC controller
The ServeRAID M5110 SAS/SATA Controller has the following specifications:
Eight internal 6 Gbps SAS/SATA ports
Two x4 mini-SAS internal connectors (SFF-8087)
Supports connections to SAS/SATA drives and SAS Expanders
Supports RAID levels 0, 1, and 10
Supports RAID levels 5 and 50 with optional M5100 Series RAID 5 upgrades
Supports RAID levels 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
Support for SSD performance optimization with the optional M5100 Series Performance Accelerator
Support for SSD caching with the optional M5100 Series SSD Caching Enabler
Up to 6 Gbps throughput per port
PCIe 3.0 x8 host interface
Based on the LSI SAS2208 6 Gbps ROC controller
The N2115 SAS/SATA HBA has the following specifications:
Eight internal 6 Gbps SAS/SATA ports
Two x4 mini-SAS internal connectors (SFF-8087)
Supports connections to SAS/SATA HDDs and SATA SSDs
Optimized for SSD performance
No RAID support
Up to 6 Gbps throughput per port
PCIe 3.0 x8 host interface
Based on the LSI SAS2308 6 Gbps controller
For more information, see the list of Lenovo Press product guides in the RAID adapters category:
http://lenovopress.com/systemx/raid
Internal drive options
The following table lists drive options for the internal storage of the x3250 M5 server.
Table 11: 2.5-inch hot-swap 6 Gb SAS/SATA HDDs
Table 12: 2.5-inch hot-swap 6 Gb SAS/SATA SSDs
Table 13: 3.5-inch hot-swap 6 Gb SAS/SATA HDDs
Table 14: 3.5-inch hot-swap 6 Gb SAS/SATA SSDs
Table 15: 3.5-inch simple-swap 6 Gb SAS/SATA HDDs
Lenovo System x3250 M5 18