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Lenovo ThinkSystem SR850 Server - System Overview

Description

The Lenovo ThinkSystem SR850 rack server is designed to be future proof, allowing businesses to add more components, as their needs grow, instead of replacing the entire system. Featuring Intel Optane DC Persistent Memory modules (DCPMMs) and many choices for drive bay configurations, the system is capable of handling mainstream applications and emerging workloads thanks to the quad-CPU design and sizeable memory footprint.

Lenovo SR850 pull-out tray in server

Performance

The Lenovo SR850 can house up to 4x second-generation Intel Xeon Scalable processors. Each of the 14nm CPU can leverage up to 28 cores and 56 threads, for a massive total of 112 cores and 224 threads between all four processors. Processors 1 and 2 are installed in sockets on the system board, while Processors 3 and 4 are installed on the processor and memory expansion tray. Core speeds can reach up to 3.8GHz with CPUs limited to a TDP rating of 205W each.

Memory

Each processor supports up to 12x DIMMs, which can be filled with Lenovo TruDDR4 RDIMMs, LRDIMMs or 3DS RDIMMs operating at up to 2933MHz. Each CPU also has 6x channels with 2x DIMMs per channel. Up to 48x DIMM slots can be populated on the ThinkSystem SR850. A total of 6TB of memory is supported when all processors are installed and all DIMM slots are populated with 128GB 3DS RDIMMs. On the other hand, a total of 15TB of memory is supported when all 4x CPUs are installed and 24x 512GB data centric persistent memory modules (DCPMM) are installed and paired with 3TB of system memory using 24x 128GB 3DS RDIMMs. Persistent Memory has a much lower latency than retrieving data from SSDs, even NVMe SSDs, and has a much larger capacity than system memory.

Storage

Eight of the 16x 2.5-inch drive bays on the front of the SR850 server can be configured as AnyBay drives, supporting SAS, SATA, or NVMe drives. NVMe drives are suitable for storage tiering since they are fast and have minimal latency. A maximum of 245TB of storage is offered when 16x 2.5-inch hot-plug SAS SSDs are mounted on the necessary backplane. To avoid disrupting the storage capacity, Lenovo’s patented dual M.2 adapter design is also supported to boot the operating system with a RAID1 configuration for redundancy.

ThinkSystem SR850 pull-out tray

Expansion

Up to 9x PCIe slots, including a dedicated slot for the M.2 adapter and a slot for an LOM Ethernet adapter, are available towards the back of the chassis. The system board has six slots plus the LOM slot, and three (slots 3-5) are accessible via a riser card. There are three different types of riser cards available.

Management

Lenovo’s XClarity controller can be used to manage the system’s health, hardware, and updates both at-chassis and remotely. A USB port on the front panel allows users to connect a mobile device to locally manage the system, while an ethernet port on the rear of the platform allows for remote management through a standard browser.

Summary

The agile architecture of the Lenovo ThinkSystem SR850 allows for quick processor and memory upgrades, as well as vast and flexible storage capacity. With support for either 2x or 4x 2nd generation Intel Xeon Scalable CPUs, this system can be configured as a 2x socket platform initially and then upgraded to 4x processors as the workload changes. It features a large memory capacity with 48x memory module slots, plus ample storage with 16x drive bays compatible with SAS, SATA, or NVMe drive formats. The server is flexible enough to support an organization today, and for users to upgrade to support future workloads.

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Lenovo ThinkSystem SR850 Server - Specifications

Processor - 4 Sockets
  • Up to four 2nd-generation Intel Xeon Processors (Gold or Platinum)
  • 14nm technology, CPU TDP up to 205W
  • Up to 28 Cores and 56 threads
  • Core speeds up to 3.8 GHz
  • 6x UPI links at up to 10.4 GT/s each
Memory
  • System Memory: Up to 6TB with 48x 128GB 3DS RDIMMs and 4x processors
  • Persistent Memory in AppDirect Mode: Up to 15TB with 24x 512GB DCPMMs + 24x 128GB 3DS RDIMMs and 4x processors
  • 6-channel memory architecture per processor
  • Up to 24x Intel Optane DC Persistent Memory modules (DCPMMs)
  • Supports Lenovo TruDDR4 DIMMs at 2933 MHz
  • Supports RDIMMs, 3DS RDIMMs, LRDIMMS, and DCPMMs
Storage
    16x 2.5" Hot-Swap Drive Bays

  • Supports SAS, SATA, NVMe
  • 1x or 2x M.2 slots
  • Maximum Storage

  • 245.76TB using 16x 15.36TB 2.5-inch SAS SSDs
  • 61.44TB using 8x 7.68TB 2.5-inch NVMe SSDs
  • 38.4TB using 16x 2.4TB 2.5-inch HDDs
Expansion Slots
    Up to 9x PCIe 3.0 slots:

  • Slot 1: PCIe 3.0 x16 (low profile)
  • Slot 2: PCIe 3.0 x8 (low profile)
  • Slot 3-5: Riser card slots (choices are x8/x8/x8, x8/x8/x8ML2 and x8/x16ML2)
  • Slot 6: PCIe 2.0 x2 / 6 Gb SATA slot reserved for M.2 adapter and drives
  • Slot 7: Reserved for Ethernet LOM phy adapter
  • Slot 8: PCIe 3.0 x8 (low profile)
  • Slot 9: PCIe 3.0 x8 (low profile)
  • Slot 10: PCIe 3.0 x8 (low profile)
  • Slot 11: PCIe 3.0 x16 (low profile)
  • Additional slots:

  • LOM Ethernet Adapter
  • M.2 Adapter
Chipset
    Intel C624 "Lewisburg" chipset
Power Supplies
  • 2x hot-swap redundant AC power supplies
  • 750 W, 1100 W, 1600 W, supporting 220 V AC
Fans
  • 6x N+1 redundant hot-swap 60mm fans
Front Panels
  • Optional LCD diagnostics pull-out panel
  • Optional VGA port
  • 2x USB ports (1x for XCC)
  • Status LEDs
  • Pull-out Information tag
  • Up to 24x 2.5" hot-swap drive bays
Management
  • XClarity Controller
Chassis
    Enclosure
    Height: 3.4" (87mm)
    Width: 17.5" (445mm)
    Depth: 30.1" (765mm)
    Minimum Weight: 40lbs (18kg)
    Maximum Weight: 59.6lbs (27kg)

Request A Quote

Get a quote for Lenovo ThinkSystem SR850 Server

If you know what you want but can't find the exact configuration you're looking for, have one of our knowledgeable sales staff contact you. Give us a list of the components you would like to incorporate into the system, and the quantities, if more than one. We will get back to you immediately with an official quote.

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