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Lenovo ThinkSystem SN550 V2

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Lenovo ThinkSystem SN550 V2blade2 × SFF 2.5" bays

The Lenovo ThinkSystem SN550 V2 is an updated 2-socket half-wide compute node for the Flex System Enterprise Chassis. Driven by 3rd Gen Intel Xeon Scalable processors, it provides PCIe 4.0 interconnects, 16 DDR4-3200 memory channels, and enhanced fabric bandwidth to protect enterprise investments in Flex System modular infrastructure.

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Specifications

BrandLenovo
FamilyThinkSystem SN
Form factorblade
ReleasedApr 2021
ProcessorUp to 2x 3rd Gen Intel Xeon Scalable processors up to 36 cores each (up to 205W TDP)
Memory16x DDR4 DIMM slots (8 per CPU) supporting up to 2TB DDR4-3200 ECC RDIMM/Optane PMem 200
Drive baysUp to 2x 2.5-inch hot-swap SATA/SAS/NVMe U.3 drive bays plus dual M.2 boot mirrors
Expansion slots2x PCIe 4.0 x16 I/O expansion mezzanine connectors for chassis fabric switching
NetworkMezzanine cards supporting 25GbE Ethernet and 32Gb Fibre Channel SAN switching
Power supplyShared redundant power from the Flex System Enterprise Chassis
ManagementLenovo XClarity Controller (XCC)

Generations

Compatible parts

Hard drives

Works together

How the Lenovo ThinkSystem SN550 V2 connects to servers, storage and the network: 4 ways, with the parts and products on each path.

Fibre Channel SANiSCSI and NVMe/TCP over EthernetDirect-attached SASFile storage (NFS and SMB)

Fibre Channel SAN

Match the speed: 16Gb and 32Gb FC HBAs, switches and array ports work together, and each generation also runs one or two speeds below its own (a 32Gb port runs at 16Gb and 8Gb).

Adapters for the server (check the fit list)

Switches

Storage

Optics

Fibre Channel SAN: how it fits together

iSCSI and NVMe/TCP over Ethernet

Keep the speed the same at all three points: a 25GbE server, a 25GbE switch port and a 25GbE array port. Mixed speeds work but the slowest link sets the pace.

Adapters for the server (check the fit list)

Switches

Storage

Optics

iSCSI and NVMe/TCP over Ethernet: how it fits together

Direct-attached SAS

12Gb SAS uses Mini-SAS HD (SFF-8644) connectors; older 6Gb gear uses Mini-SAS (SFF-8088). Adapter cables exist, but the link runs at the slower speed.

Adapters for the server (check the fit list)

Storage

Direct-attached SAS: how it fits together

File storage (NFS and SMB)

Front-end ports face the clients; back-end ports (on scale-out systems) connect the nodes to each other and need their own switch pair.

Adapters for the server (check the fit list)

Switches

Storage

Optics

File storage (NFS and SMB): how it fits together

Plan and size it

Check compatibility with Lenovo

Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Lenovo has tested with the Lenovo ThinkSystem SN550 V2.

Equivalent models from other brands

FAQ

Can the SN550 V2 coexist with older Flex System blades in the same chassis?

Yes, SN550 V2 blades can operate alongside legacy SN550 and x240 M5 blades in the Flex System Enterprise Chassis.

Does the SN550 V2 support PCIe 4.0?

Yes, its onboard mezzanine interfaces and drive channels support PCIe 4.0 bus speeds.

Buying or selling ThinkSystem SN550 V2?

New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.

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Sources