ThinkSystem SR950 手册

Lenovo ThinkSystem SR950 Server

Product Guide

Lenovo ThinkSystem SR950 is designed for your most demanding, mission-critical workloads, such as in-

memory databases, large transactional databases, batch and real-time analytics, ERP, CRM, and

virtualized server workloads. The powerful 4U ThinkSystem SR950 can grow from two to eight Intel Xeon

Scalable Family processors, and with 96 DIMM sockets, supports up to 12 TB of high-speed memory. The

modular design of SR950 speeds upgrades and servicing with easy front or rear access to all major

subsystems to maximize server availability.

The SR950 server supports up to eight processors in a single 4U chassis. You can upgrade from a 2-

socket system to an 8-socket system without having to replace the server enclosure or upgrade to a

physically larger design. The SR950 offers enterprise scalability and advanced RAS features to support

the most demanding mission-critical applications that require 24x7 operations.

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Key features

Lenovo ThinkSystem SR950 is designed for your most demanding, mission-critical workloads, such as in-

memory databases, large transactional databases, batch and real-time analytics, ERP, CRM, and

Dense server offering where up to 8 processors and 96 DIMMs are housed in only 4U of rack

space.

Offers a simple upgrade path that enables the server to be initially configured with 2 processors

and then later be upgraded to 8 processors simply by adding a compute tray and system boards.

Supports the Gold and Platinum level processors in the Intel Xeon Processor Scalable

Family, including the "top bin" highest-performing 205 W processors available from Intel.

Up to eight processors, each with up to 28 cores and 56 threads (for a total of up to 448 threads) to

maximize the concurrent execution of multithreaded applications.

Intelligent and adaptive system performance with Intel Turbo Boost Technology 2.0 allows

processor cores to run at maximum speeds during peak workloads by temporarily

memory subsystem and memory capacity of up to 12 TB using 96x 128 GB 3DS RDIMMs.

Up to 24x 2.5-inch HDDs or SSDs provide a flexible and scalable all-in-one platform to meet your

increasing demands.

Of the 24x drive bays, support for up to 12 NVMe PCIe SSDs maximizes drive I/O performance, in

terms of throughput, bandwidth, IOPS, and latency.

The use of solid-state drives (SSDs) instead of, or along with, mechanical hard disk drives (HDDs),

can improve I/O performance. An SSD can support up to 100 times more I/O operations per second

(IOPS) than a typical HDD.

New high-speed RAID controllers provide 12 Gb SAS connectivity to the drive backplanes. A variety

of RAID adapters are available, with cache up to 4 TB and support for 12 drives on a single

A total of up to 17 rear-accessible PCIe slots: 14 general-purpose PCIe 3.0 slots plus slots

dedicated to the LOM adapter and two ML2 adapters. In addition, the server has two internal slots

for RAID or HBA adapters.

The server offers PCI Express 3.0 I/O expansion capabilities that improve the theoretical maximum

bandwidth by almost 100% (8 GTps per link using 128b/130b encoding) compared to the previous

generation of PCI Express 2.0 (5 GTps per link using 8b/10b encoding).

Availability and serviceability

The SR950 provides many features to simplify serviceability and increase system uptime:

The server offers Single Device Data Correction (SDDC, also known as Chipkill), Adaptive Double-

Device Data Correction (ADDDC, also known as Redundant Bit Steering or RBS), memory mirroring,

operational in the event of a power supply or utility supply failure

Each compute tray has 6 hot-swap N+1 redundant fans (a total of 12 fans when two compute trays

are installed) to maximize availability for business-critical applications.

The power source-independent light path diagnostics functionality provides individual light path

LEDs that lead the technician to failed (or failing) components, which simplifies servicing, speeds up

problem resolution, and helps increase system availability.

The included LCD system information display panel provides greater diagnostic function by listing

all error messages and VPD data needed for a service call, thereby speeding problem resolution

and increasing system uptime.

Proactive Platform Alerts (including PFA and SMART alerts): Processors, voltage regulators,

Solid-state drives (SSDs) offer more reliability than mechanical HDDs for greater uptime.

The built-in XClarity Controller continuously monitors system parameters, triggers alerts, and

performs recovery actions in case of failures to minimize downtime.

Built-in diagnostics in UEFI, using Lenovo XClarity Provisioning Manager, speed up troubleshooting

tasks to reduce service time.

Lenovo XClarity Provisioning Manager supports diagnostic functions and collects service data to

USB key drive or remote CIFS share folder for troubleshooting, to reduce servicing time.

Autorestart in the event of a momentary loss of AC power (based on power policy setting in the

XClarity Controller service processor)

Support for the XClarity Administrator Mobile app running on a supported smartphone and

The server includes an XClarity Controller (XCC) to monitor server availability and perform remote

management. XCC Enterprise is included as standard, which enables remote KVM and remote

media files (ISO and IMG image files), boot capture, and power capping.

Lenovo XClarity Administrator offers comprehensive hardware management tools that help to

increase uptime, reduce costs and improve productivity through advanced server management

capabilities.

New UEFI-based Lenovo XClarity Provisioning Manager, accessible from F1 during boot, provides

system inventory information, graphical UEFI Setup, platform update function, RAID Setup wizard,

operating system installation function, and diagnostic functions.

Support for Lenovo XClarity Energy Manager which captures real-time power and temperature data

Intel Execute Disable Bit functionality can prevent certain classes of malicious buffer overflow

attacks when combined with a supported operating system.

Intel Trusted Execution Technology provides enhanced security through hardware-based resistance

to malicious software attacks, allowing an application to run in its own isolated space, protected

from all other software running on a system.

Energy efficiency

The SR950 offers the following energy-efficiency features to save energy, reduce operational costs, and

increase energy availability:

The server can be used in environments up to ASHRAE A4 with ambient temperatures up to 45 °C.

The server is Energy Star 2.1 compliant

Solid-state drives (SSDs) consume as much as 80% less power than mechanical 2.5-inch HDDs.

The server uses hexagonal ventilation holes, which can be grouped more densely than round holes,

providing more efficient airflow through the system.

Optional Lenovo XClarity Energy Manager provide advanced data center power notification,

analysis, and policy-based management to help achieve lower heat output and reduced cooling

needs.

Components and connectors

The following figure shows the front of the SR950 server.

Figure 2. Front view of the Lenovo ThinkSystem SR950

The following figure shows the rear of the SR950 server. The server has up to 17 PCIe slots, depending on