• Lenovo SR850P 4-socket Xeon 2U rack server with NVMe drive bays
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Lenovo

Lenovo SR850P | 4-Socket 2U Rack Server, 48 DIMM, 15TB Memory, 16x 2.5in

SR850P

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Description

The Lenovo ThinkSystem SR850P is a high-density 4-socket rack server engineered for memory-intensive workloads including virtualization, databases, and business-critical applications. Featuring up to four second-generation Intel Xeon Scalable processors in a UPI mesh configuration, it delivers up to 20% better performance than the SR850. With support for up to 48 DIMMs, 15TB of total memory, and flexible storage configurations with up to 16 drive bays supporting SAS, SATA, and NVMe, the SR850P is ideal for enterprise consolidation, data analytics, and dense computing environments.

Features

Four second-generation Intel Xeon Scalable processors (Gold/Platinum) in optimized UPI mesh configuration
- Up to 112 processor cores and 15TB memory capacity for extreme computational density
- 48 DIMM slots supporting DDR4 RDIMMs, LRDIMMs, 3DS RDIMMs, and Intel Optane DC Persistent Memory
- Mix-and-match storage with up to 16x 2.5-inch drive bays supporting SAS, SATA, and NVMe PCIe SSDs
- AnyBay drive bay technology for flexible storage tiering and performance optimization
- Up to 8 general-purpose PCIe 3.0 expansion slots including four full-length x16 slots
- Dedicated LOM slot for 1GbE or 10GbE networking without consuming standard PCIe slots
- Optional OCP or ML2 adapter slot for additional network connectivity
- Lenovo XClarity Controller for comprehensive systems management and monitoring
- Tool-less M.2 adapter for fast OS boot without consuming front drive bays
- Redundant hot-swap 80 PLUS Platinum power supplies for energy efficiency
- Enterprise-class RAS features including memory mirroring, rank sparing, and patrol scrubbing
- Light path diagnostics with onboard LEDs for rapid fault isolation
- Front panel USB management port for local administration via mobile devices
- Scalable design allowing processor and memory upgrades without system replacement
- TPM 2.0 security module support for enhanced data protection
- Hot-swap fans and redundant cooling for continuous operation

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

Form Factor: 2U rack-mount server
- Processor Support: Up to four second-generation Intel Xeon Scalable processors (Gold or Platinum) in UPI mesh configuration
- Processor Cores: Up to 112 cores total (28 cores per processor)
- Memory Slots: 48 DIMM slots (12 per processor)
- Maximum Memory: Up to 15TB (with 24x 512GB DCPMMs + 24x 128GB RDIMMs) or 6TB (with 48x 128GB RDIMMs)
- Memory Type: TruDDR4 RDIMMs, LRDIMMs, 3DS RDIMMs up to 2933MHz; Intel Optane DC Persistent Memory support
- Storage Bays: Up to 16x 2.5-inch hot-swap drive bays (mix-and-match SAS, SATA, NVMe)
- Maximum Storage: Up to 122TB internal storage capacity
- NVMe Support: Up to 16 NVMe drives with dedicated backplanes
- PCIe Expansion: Up to 8x PCIe 3.0 slots (including four x16), plus dedicated LOM and M.2 adapter slots
- Network: Dedicated LOM slot for Gigabit or 10GbE Ethernet adapters (does not consume PCIe slots)
- Boot: M.2 adapter support for rapid OS boot (one or two M.2 drives in RAID 1)
- Management: Lenovo XClarity Controller embedded management, front USB management port, rear Ethernet management port
- Power Supply: Redundant hot-swap power supplies (80 PLUS Platinum certified)
- Dimensions: 3.4in H x 17.5in W x 30.1in D (87mm x 445mm x 765mm)
- Weight: Minimum 40 lbs (18 kg)
- Environmental: ASHRAE Class A2 compliant (A3/A4 depending on configuration)

FAQs

Q: What is the key architectural difference between the SR850P and the SR850?
A: The SR850P uses a full UPI mesh topology where each of the four processors connects directly to the other three processors via high-speed UPI links, compared to the SR850's ring configuration. This mesh design delivers up to 20% better total performance and is optimized for multi-threaded applications.

Q: Can I start with two processors and upgrade to four later?
A: Yes, the SR850P features a modular processor and memory expansion tray design. You can start with two processors and 24 DIMM slots on the system board, then add the expansion tray to scale up to four processors and 48 DIMM slots as your workload requirements grow.

Q: What storage configurations are supported?
A: The SR850P supports six different backplane configurations with up to 16x 2.5-inch drive bays. You can mix and match SAS, SATA, and NVMe drives using the AnyBay design. Configurations include all-SAS/SATA, SAS/SATA with AnyBay, or all-NVMe backplanes for maximum flexibility in storage tiering and performance optimization.

Q: How does Intel Optane DC Persistent Memory work in this server?
A: The SR850P supports up to 6 DCPMMs per processor (24 total) paired with standard RDIMMs. DCPMMs can operate in Memory Mode (volatile, extending capacity), App Direct Mode (persistent storage tier), or Mixed Mode. Maximum configuration is 24x 512GB DCPMMs plus 24x 128GB RDIMMs for 15TB total memory addressing.

Q: What workloads is the SR850P best suited for?
A: The SR850P is engineered for memory-intensive and high-performance workloads including large-scale virtualization platforms, in-memory databases, enterprise business applications, data analytics, server consolidation projects, dense computing environments, and scientific applications requiring massive memory capacity and high core counts.

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