• Lenovo SR950 4U server rack with Xeon Scalable CPUs and redundant PSUs
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Lenovo

Lenovo SR950 | ThinkSystem 4U 8-Socket Server, 24TB DDR4, 24x 2.5in

SR950

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Description

The Lenovo ThinkSystem SR950 is a mission-critical 4U rack server designed for demanding enterprise workloads including in-memory databases, real-time analytics, ERP, CRM, and virtualization. Scalable from 2 to 8 Intel Xeon Scalable processors with up to 96 DIMM slots supporting 24TB of DDR4 memory and optional Intel Optane DC Persistent Memory. The modular design features up to 24 hot-swap 2.5-inch drive bays with AnyBay technology for SAS, SATA, or NVMe drives, plus up to 17 PCIe slots for maximum I/O flexibility.

Features

Second-generation Intel Xeon Scalable processors with up to 28 cores and 205W TDP for maximum performance
- Scalable 2-socket to 8-socket architecture with modular compute trays for flexible capacity growth
- Up to 24TB DDR4 memory or 36TB with Intel Optane DC Persistent Memory for massive in-memory workloads
- AnyBay technology supporting mixed SAS, SATA, and NVMe drives in the same chassis for storage tiering
- Up to 17 PCIe slots including 11x PCIe 3.0 x16 for extensive I/O and accelerator support
- Hot-swap and redundant design: power supplies, cooling fans, and front-accessible drive bays
- Lenovo XClarity Controller for comprehensive systems management, monitoring, and predictive failure analysis
- Ethernet failover capability for network connection redundancy without data loss
- Advanced RAS features including memory mirroring, rank sparing, ADDDC, and patrol scrubbing
- Titanium-level power supplies for industry-leading energy efficiency
- Tool-less modular design with slide-out trays for rapid serviceability and reduced downtime
- Support for virtualization, containerization, and software-defined infrastructure

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: 4U rack-mount chassis with dual compute trays
- Processors: Up to 8x Intel Xeon Scalable processors (2nd Gen), Gold and Platinum series, up to 28 cores per processor, 205W TDP
- Memory: 96x DIMM slots supporting up to 24TB DDR4 TruDDR4 (RDIMM, LRDIMM, 3DS RDIMM) at 2666-2933 MHz; Intel Optane DC Persistent Memory support
- Storage: Up to 24x 2.5-inch hot-swap drive bays with AnyBay technology (SAS/SATA/NVMe); up to 12x NVMe PCIe SSD bays; maximum 369TB raw capacity
- Expansion Slots: Up to 17x PCIe slots (up to 11x PCIe 3.0 x16, 3x PCIe 3.0 x8); 2x front-accessible dedicated RAID slots; 2x ML2 slots
- Network: Dual 1GbE LOM; optional 10GbE/25GbE upgrades
- Management: Lenovo XClarity Controller with HTML5 GUI, CLI, REST API; remote KVM; predictive failure analysis
- Power Supply: Up to 4x hot-swap redundant power supplies (1100W, 1600W, or 2000W options); Titanium efficiency
- Cooling: 6 or 12 hot-swap redundant cooling fans, front-accessible
- Operating Systems: Microsoft Windows Server, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, VMware ESXi

FAQs

Q: What is the maximum memory capacity of the SR950?
A: The SR950 supports up to 24TB of DDR4 memory using 96x DIMM slots with 256GB 3DS RDIMMs. When combined with Intel Optane DC Persistent Memory modules, total memory capacity can reach up to 36TB in an 8-socket configuration.

Q: Can the SR950 be upgraded from 4 to 8 processors?
A: Yes, the SR950 features a modular scalable design that allows field upgrades from 2-socket to 4-socket or from 4-socket to 8-socket configurations using an upgrade kit and professional installation. The specific upgrade path depends on the initial configuration selected.

Q: What is Lenovo AnyBay technology?
A: AnyBay is Lenovo's flexible drive bay design that allows the same physical bay to accept SAS, SATA, or U.2 NVMe PCIe drives. Up to 12 of the 24 drive bays support NVMe SSDs, enabling storage tiering with high-performance NVMe SSDs alongside high-capacity SAS/SATA HDDs.

Q: What workloads is the SR950 optimized for?
A: The SR950 is designed for mission-critical workloads requiring maximum compute density, memory capacity, and continuous availability. Ideal applications include SAP HANA and in-memory databases, large-scale transactional databases, real-time analytics, enterprise resource planning, customer relationship management, and virtualized data center consolidation.

Q: How does the modular design improve serviceability?
A: The SR950 features front and rear accessible compute trays that slide out for easy access to processors, memory, and storage without removing the chassis from the rack. All major components including power supplies, fans, drive bays, and PCIe risers are hot-swappable and accessible from the front or rear, minimizing downtime during maintenance.

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