Memory
Up to 16 DIMM sockets (8 DIMMs per processor) supporting DDR4 DIMMs up to 2400 MHz
memory speeds. Four memory channels per processor (two DIMMs per channel).
Memory
maximums
RDIMMs: Up to 512 GB memory with 16x 32 GB RDIMMs and two processors.
Memory
protection
Chipkill (x4 memory options only), ECC, mirroring, rank sparing
Storage bays
Up to six 2.5-inch hot-swap SAS/SATA drive bays per server. Drive bays are located in the
n400 enclosure, outside the sd350 servers. Also supports one SATADOM flash drive internal to
the sd350.
Maximum
internal storage
Up to 23.0 TB per server using 6x 3.84 TB SSDs, or up to 12 TB per server using 6x 2TB NL
SATA drives.
RAID support
Six 6 Gb SATA ports through onboard Intel C612 chipset (Intel RSTe) with RAID 0, 1, 10, 5
support standard. Supports SATA drives only. RAID arrays can only be formed using the four
drives; the other two drives must be non-RAID.
Optional 6 Gb Compal H701-L RAID controller installs in dedicated mezzanine adapter slot,
supporting RAID 0, 1, 10. Based on the Avago SAS2308 ASIC. Supports SAS and SATA
drives. The H701-L RAID controller requires the second processor.
Optical drive
bays
No internal bays; use an external USB drive.
Tape drive bays
No internal bays. Use an external USB drive.
Network
interfaces
Supports Ethernet ports on an OCP form-factor adapter installed in a dedicated mezzanine
slot. Available adapters include leither a two-port 1 GbE adapter or a two-port 10 GbE
adapter.
All ports of the OCP Network Adapter have NC-SI enabled and support both remote
management functions as well as standard operating system network functions.
PCI Expansion
slots
Three PCIe slots internal to the sd350:
One PCIe 3.0 x16 low-profile slot
One PCIe 3.0 x8 slot for an OCP form-factor adapter
One PCIe 3.0 x8 mezzanine slot for a dedicated RAID adapter (requires second CPU)
Ports
Front: One VGA port, and two USB 3.0 ports for local connectivity. One GbE port for dedicated
systems management support. Two 1 Gbps or 10 Gb Ethernet ports with RJ45 connectors,
depending on the adapter selected. Internal: Support for a SATADOM flash drive for operating
system boot.
Cooling
Supplied by the n400 enclosure.
Power supply
Supplied by the n400 enclosure.
Components
Specification
Lenovo ThinkServer sd350
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