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Lenovo ThinkSystem SR550

End of saleServers2U rack
Lenovo ThinkSystem SR5502U rack16 × LFF 3.5" bays

The Lenovo ThinkSystem SR550 is a dual-socket 2U rack server designed to handle general-purpose enterprise computing workloads, secondary tiered storage, and departmental applications. Driven by 1st and 2nd Generation Intel Xeon Scalable processors, it offers up to 16 LFF or 24 SFF drive bays for balance of cost and capacity.

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Specifications

BrandLenovo
FamilyThinkSystem SR
Form factor2U rack
ReleasedJul 2017
End of saleDec 2022
End of supportDec 2027
ProcessorUp to 2x 1st or 2nd Gen Intel Xeon Scalable processors up to 26 cores (up to 125W TDP)
Memory16x DDR4 DIMM slots (8 per CPU) supporting up to 1TB DDR4-2933 ECC RDIMM/LRDIMM
Drive baysUp to 16x 3.5-inch or up to 24x 2.5-inch hot-swap SAS/SATA drive bays
Expansion slotsUp to 6x PCIe 3.0 slots plus dedicated LOM slot
NetworkDedicated LOM slot supporting 1GbE or 10GbE network interfaces
Power supplyDual redundant hot-swap 550W or 750W Platinum power supplies
ManagementLenovo XClarity Controller (XCC)

Generations

Compatible parts

Memory

Hard drives

Works together

How the Lenovo ThinkSystem SR550 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 SR550.

Equivalent models from other brands

FAQ

What is the maximum internal storage capacity of the SR550 with 3.5-inch drives?

With 16x 3.5-inch drive bays populated with 18TB HDDs, it provides up to 288TB of raw internal storage.

Can the SR550 run high-TDP Xeon Platinum processors?

The SR550 thermal design supports processors up to 125W TDP; processors above 125W require the SR650 platform.

Buying or selling ThinkSystem SR550?

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