Lenovo ThinkSystem SR860 User manual

Lenovo ThinkSystem SR860 Server
Product Guide
The Lenovo ThinkSystem SR860 is a 4-socket server that features a 4U rack design with support for
GPUs, and is optimized for price and performance and best-in-class expandability. Models of the SR860
are powered by up to four Intel Xeon Processor Scalable Family processors, each with up to 28 cores, for
an efficient 4-socket solution. Using the same design as the 2U ThinkSystem SR850, the SR860’s agile
design provides rapid upgrades for processors and memory, and its large, flexible storage capacity helps
to keep pace with data growth.
Suggested uses: General business consolidation, data analytics, virtualization, database, dense computing
and scientific applications
Country availability: The ThinkSystem SR860 is only available in countries in Europe, the Middle East
and Africa (EMEA), and in China.
Figure 1. Lenovo ThinkSystem SR860
Did you know?
The Lenovo ThinkSystem SR860 provides the advanced features and capabilities of the SR850 server plus
the addition of support for four full-height slots or two double-wide GPU slots. The server offers support
for up to four processors and 48 DIMMs, mix and match internal storage, and enterprise-grade systems
management with the embedded Lenovo XClarity Controller.
The SR860 has space for 16x 2.5-inch drive bays, up to 8 of which can be configured as AnyBay drives -
supporting SAS, SATA or NVMe drives. NVMe drives are high-speed, low-latency storage, ideal for storage
tiering.
Lenovo ThinkSystem SR860 Server 1

Key features
The flexible ThinkSystem SR860 server can scale from two to four Intel Xeon Gold or Platinum processors,
delivering significantly faster performance than the previous generation. Built for standard workloads like
general business applications and server consolidation, it can also accommodate high-growth areas such
as databases and virtualization. The ThinkSystem SR860’s agile design permits rapid upgrades for
processors and memory, and its large, flexible storage capacity helps to keep pace with data growth.
With the capability to support up to 48 DIMMs, four sockets, mix-and-match internal storage with up to 16
drives, support for two high-performance GPUs, and a dedicated slot for Gigabit or 10 GbE networking,
the SR860 provides unmatched features and capabilities in a 4U rack-mount design.
Scalability and performance
The SR860 offers numerous features to boost performance, improve scalability and reduce costs:
Supports Gold and Platinum level processors in the Intel Xeon Processor Scalable Family.
Processors supported have up to 28 cores, core speeds of up to 3.6GHz, L3 cache sizes up to 38.5
MB, and TDP ratings of up to 165W.
The SR860's processor mezzanine tray design enables you to start with two processors and 24
DIMM sockets and upgrade to four processors and 48 DIMM sockets when you need it, helping
lower initial costs and manage growth.
Up to four processors, 48 cores, and 96 threads 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 going beyond
processor TDP.
Intel Hyper-Threading Technology boosts performance for multithreaded applications by enabling
simultaneous multithreading within each processor core, up to two threads per core.
Intel Virtualization Technology integrates hardware-level virtualization hooks that allow operating
system vendors to better use the hardware for virtualization workloads.
Support for up to 48 TruDDR4 memory DIMMs operating at 2666 MHz means you have the fastest
available memory subsystem and memory capacity of up to 3.0 TB using 48x 64 GB LRDIMMs.
Future processor options are planned to support 128 GB 3DS RDIMMs which will enable the SR860
to support 6.0 TB of high-speed TruDDR4 memory (M-suffix processor support and 3DS RDIMM
support is planned for a future date)
The use of solid-state drives (SSDs) instead of, or along with, traditional spinning 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.
Up to 16x 2.5-inch drives -- SAS or SATA HDDs, SAS or SATA SSDs and the new NVMe PCIe SSDs
-- provide a flexible and scalable all-in-one platform to meet your increasing demands.
Support for up to 8 NVMe PCIe SSDs in a 2.5-inch form factor maximizes drive I/O performance, in
terms of throughput, bandwidth, and latency.
New high-speed RAID controllers from Broadcom provide 12 Gb SAS connectivity to the drive
backplanes. A variety of RAID adapters are available, with cache up to 4 GB and support for 16
drives on a single controller.
Support for two high-performance GPUs up to 300W each. GPUs adds additional processing power
to the server.
Supports a new Lenovo patented-design M.2 adapter for convenient operating system boot
functions. Available M.2 adapters support either one M.2 drive or two M.2 drives in a RAID 1
configuration for boot drive performance and reliability.
Lenovo ThinkSystem SR860 Server 2

The server has a dedicated flexible LAN-on-motherboard (LOM) slot, supporting a variety of 10 GbE
or Gigabit Ethernet adapters that do not occupy one of the standard PCIe slots.
A total of up to 13 PCIe slots: 11 general-purpose PCIe 3.0 slots plus slots dedicated to the LOM
adapter and the M.2 adapter.
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 SR860 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,
and memory rank sparing for redundancy in the event of a non-correctable memory failure.
The server offers hot-swap drives, supporting RAID redundancy for data protection and greater
system uptime.
The Dual M.2 Boot Adapter supports RAID-1 which enables two installed M.2 drives to be
configured as a redundant pair.
The server has up to two hot-swap redundant power supplies and six N+1 redundant fans to
provide availability for business-critical applications.
The power-source-independent light path diagnostics uses LEDs to lead the technician to failed (or
failing) components, which simplifies servicing, speeds up problem resolution, and helps improve
system availability.
An LCD system information display panel (available on some models and configure-to-order)
provides more detailed diagnostics by displaying all error messages and VPD data needed for a
service call, thereby aiding with problem resolution and system uptime.
Proactive Platform Alerts (including PFA and SMART alerts): Processors, voltage regulators,
memory, internal storage (SAS/SATA HDDs and SSDs, NVMe SSDs, M.2 storage, flash storage
adapters), fans, power supplies, RAID controllers, server ambient and subcomponent temperatures.
Alerts can be surfaced through the XClarity Controller to managers such as Lenovo XClarity
Administrator, VMware vCenter, and Microsoft System Center. These proactive alerts let you take
appropriate actions in advance of possible failure, thereby increasing server uptime and application
availability.
Solid-state drives (SSDs) offer more reliability than traditional 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 collects and saves service data to USB key drive or remote
CIFS share folder, for troubleshooting and to reduce service time.
Auto restart in the event of a momentary loss of AC power (based on the power policy setting in the
XClarity Controller service processor)
Support for the XClarity Administrator Mobile app running on a supported smartphone and
connected to the server through the service-enabled USB port, enables additional local systems
management functions.
Three-year or one-year customer-replaceable unit and onsite limited warranty, 9 x 5 next business
day. Optional service upgrades are available.
Lenovo ThinkSystem SR860 Server 3

Manageability and security
Powerful systems management features simplify local and remote management of the SR860:
Lenovo XClarity Controller (XCC) monitors server availability and performs remote management.
XCC Advanced is standard, which enables remote KVM. Optional XCC Enterprise enables the
mounting of 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
from the server and provides automated controls to lower energy costs.
Integrated Trusted Platform Module (TPM) 2.0 support enables advanced cryptographic methods,
such as digital signatures and remote attestation.
Supports Secure Boot to ensure only a digitally signed operating system can be used. Supported
with HDDs and SSDs, as well as M.2 drives in the M.2 Adapter.
Industry-standard Advanced Encryption Standard (AES) NI support for faster, stronger encryption.
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 SR860 offers the following energy-efficiency features to save energy, reduce operational costs, and
increase energy availability:
Energy-efficient planar components help lower operational costs.
High-efficiency power supplies with 80 PLUS Platinum certifications
Intel Intelligent Power Capability turns individual processor elements on and off as needed to
reduce power draw.
Low-voltage 1.2 V DDR4 memory offers energy savings compared to 1.35 V and 1.5 V DDR3
DIMMs.
Solid-state drives (SSDs) consume as much as 80% less power than traditional spinning 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 and thus keeping your system cooler.
Optional Lenovo XClarity Energy Manager provides advanced data center power notification,
analysis, and policy-based management to help achieve lower heat output and reduced cooling
needs.
Lenovo ThinkSystem SR860 Server 4

Components and connectors
The following figure shows the front of the server.
The following figure shows the rear of the server.
Figure 2. Rear view of the Lenovo ThinkSystem SR860
The following figure shows the locations of key components inside the server.
Lenovo ThinkSystem SR860 Server 5

Figure 3. Internal view of the Lenovo ThinkSystem SR860 (GPU Tray removed)
The upper 2U of the server is where the PCIe Expansion Tray is located. Two GPU riser cards are installed
as shown in the following figure. The figure also shows the GPU riser card and the riser slots each riser
card is connected into.
Lenovo ThinkSystem SR860 Server 6

Figure 4. PCIe Expansion Tray with GPU riser cards installed
Standard specifications
The following table lists the standard specifications.
Table 1. Standard specifications
Components Specification
Machine
types
7X69 - 3 year warranty
7X70 - 1 year warranty
Form factor 4U rack.
Processor Up to four Intel Xeon Processor Scalable Family of processors, either Gold or Platinum level
processors (formerly codename "Skylake"). Supports processors up to 28 cores, core speeds up
to 3.6 GHz, and TDP ratings up to 165W. Two processor sockets on the system board and two
processors on the Processor and Memory Expansion Tray (standard on most models). Two Intel
Ultra Path Interconnect (UPI) links at 10.4 GT/s each. Four processors are connected in a ring
topology.
Chipset Intel C624 "Lewisburg" chipset
Memory Up to 48 DIMM sockets (12 DIMMs per processor) supporting Lenovo TruDDR4 DIMMs at up to
2666 MHz. RDIMMs and LRDIMMs (Load Reduced DIMMs) are supported, but memory types
cannot be mixed. There are 24 DIMM sockets on the system board, and an additional 24 DIMM
sockets on the processor and memory expansion tray (standard on most models).
Memory
maximums
With RDIMMs: Up to 1.5 TB with 48x 32 GB RDIMMs and four processors.
With LRDIMMs: Up to 3.0 TB with 48x 64 GB LRDIMMs and four processors.
Planned support for up to 6.0 TB with 48x 128 GB 3DS RDIMMs (requires M-suffix processors
that support greater than 786 GB memory per processor)
Memory
protection
ECC, SDDC (for x4-based memory DIMMs), ADDDC (for x4-based memory DIMMs), memory
mirroring, and memory sparing.
Lenovo ThinkSystem SR860 Server 7

Disk drive
bays
Up to 16 2.5-inch hot-swap SAS/SATA bays.
Maximum
internal
storage
Up to 245.76 TB with 16x 15.36 TB 2.5" SAS SSDs, or up to 32 TB with 16x 2.0 TB 2.5” 7.2K SAS
HDDs. With 8x SAS/SATA and 8x NVMe drives, up to 153.6 TB with 8x 15.36 TB 2.5" SAS SSDs
and 8x 3.84 TB U.2 2.5" NVMe SSDs. Mix of SSDs/HDDs supported.
Storage
controller
No embedded RAID
12 Gb SAS/SATA RAID adapters:
RAID 530i (cacheless) supports RAID 0, 1, 10, 5, 50
RAID 730-8i (China only) with 1GB cache supports RAID 0, 1, 10, 5, 50
RAID 930-8i with 2GB flash-backed cache supports RAID 0, 1, 10, 5, 50, 6, 60
RAID 930-16i and 24i with 4GB flash-backed cache supports RAID 0, 1, 10, 5, 50,
6, 60
12 Gb SAS/SATA non-RAID: 430-8i and 430-16i HBAs
Optical drive
bays
No internal optical drive.
Tape drive
bays
No internal backup drive.
Network
interfaces
Integrated 10Gb Ethernet controller, based on the Intel Ethernet Connection X722. The server
supports 1 of 6 available Phy adapters, providing either 2- or 4-port Gigabit Ethernet, 2- or 4-port
10 GbE with SFP+ connections or 2- or 4-port 10 GbE with RJ45 connections. One port can
optionally be shared with the XClarity Controller (XCC) management processor for Wake-on-LAN
and NC-SI support.
PCI
Expansion
slots
Up to 13 PCIe slots including slots reserved for a LOM Ethernet adapter and an M.2 adapter. Six
slots are on the system board and three (slots 5-7) are through a lower riser card. Slots 1 & 2 and
14 & 15 are via upper riser cards that connect through slots 3 and 13 respectively. Slots 1-13
available with 2 processors; slots 14 & 15 require 4 processors.
The slots are as follows:
Slot 1-2: Riser card slots (choice of x8/x8 or x16) (FHFL)
Slot 3: Riser slot to enable slots 1 & 2 in the PCIe Expansion Tray (PCIe 3.0 x16)*
Slot 4: PCIe 3.0 x8 (low profile)
Slot 5-7: Riser card slots (choices are x8/x8/x8, x8/x8/x8ML2 and x8/x16ML2)
Slot 8: PCIe 2.0 x2 / 6 Gb SATA slot reserved to M.2 adapter and drives
Slot 9: Reserved for Ethernet LOM phy adapter
Slot 10: PCIe 3.0 x8 (low profile)
Slot 11: PCIe 3.0 x8 (low profile)
Slot 12: PCIe 3.0 x8 (low profile)
Slot 13: Riser slot to enable slots 14 & 15 in the PCIe Expansion Tray (PCIe 3.0 x16)*
Slot 14-15: Riser card slots (choice of x8/x8 or x16) (FHFL)
* Slots 3 and 13 are used as riser slots to enable slots 1, 2, 14 and 15 in the PCIe Expansion Tray.
It is also supported to have the PCIe Expansion Tray installed with only one riser installed. For
example, it is supported to have a riser card in slot 3 but not in slot 13; slot 13 can then be used
as a PCIe x16 slot.
Components Specification
Lenovo ThinkSystem SR860 Server 8

Ports Front: One VGA video port. Two USB 2.0 ports or one USB 2.0 and one USB 3.0 port, model
dependent. The first USB 2.0 port can be configured to support local systems management by
using the XClarity Administrator mobile app on a mobile device connected via a USB cable.
Rear: Two USB 3.0 ports, one VGA video port, one DB-9 serial port, and one RJ-45 XClarity
Controller (XCC) systems management port. The serial port can be shared with the XCC for serial
redirection functions.
Internal: Optional M.2 adapter in dedicated slot supporting one or two M.2 drives (for OS boot
support, including hypervisor support).
Cooling Six N+1 redundant non-hot-swap 60 mm fans (all six standard). One additional fan connected to
each of the two upper riser units. One additional fan integrated in each of the two power supplies.
Power supply Up to two hot-swap redundant AC power supplies (all 80 PLUS Platinum certification): 750 W,
1100 W, 1600 W and 2000 W AC options, supporting 220 V AC. 750 W and 1100 W options also
support 110V input supply. In China only, all power supply options support 240 V DC. Second
power supply requires either Processor and Memory Expansion Tray or a power interposer card.
Video G200 graphics with 16 MB memory with 2D hardware accelerator, integrated into the XClarity
Controller. Maximum resolution is 1920x1200 32bpp at 60Hz.
Hot-swap
parts
Drives and power supplies.
Systems
management
XClarity Controller embedded management, XClarity Administrator centralized infrastructure
delivery, XClarity Integrator plugins, and XClarity Energy Manager centralized server power
management. XClarity Controller Advanced standard with the SR860; XClarity Controller
Enterprise optional with software license upgrade. Light path diagnostics for local failure detection
and reporting, with optional LCD diagnostics pull-out panel.
Security
features
Power-on password, administrator's password, Trusted Platform Module (TPM), supporting TPM
1.2 or TPM 2.0. In China only, optional Trusted Cryptographic Module (TCM). Lockable top cover.
Optional lockable front security bezel.
Operating
systems
supported
Microsoft Windows Server 2012 R2, 2016; RHEL 6 & 7 x64; SLES 11 & 12 x64; VMware ESXi 6.0,
6.5
Limited
warranty
Three-year or one-year (model dependent) customer-replaceable unit and onsite limited warranty
with 9x5 next business day (NBD).
Service and
support
Optional service upgrades are available through Lenovo Services: 4-hour or 2-hour response time,
6-hour fix time, 1-year or 2-year warranty extension, software support for Lenovo hardware and
some third-party applications. Actual offering may depend on the country where the server is
installed and is subject to change.
Dimensions Height: 175mm (6.9 in.), width with rack handle: 482mm (19 in.), width without rack handle:
447mm (17.6 in.), depth: 766mm (30.1 in)
Weight Maximum: 39.8 kg (87.7 lb)
Components Specification
The SR860 servers are shipped with the following items:
ThinkSystem Friction Rail kit
Documentation flyer
Power cords (model and region dependent)
Lenovo ThinkSystem SR860 Server 9

Models
The following tables list the available models, grouped by region.
Models for China
Models for EMEA countries
Models for China
All models have the following common features:
Field upgrade options for Processor and Memory Expansion Tray, Storage Backplane and PCIe
risers
XCC Advanced with optional upgrade to Enterprise
No Pull-out LCD Display Panel
Front USB ports are two USB 2.0
2x 2.8m, 13A/100-250V, C13 to C14 Jumper Cord
Friction Rail Kit
Table 2. Models for China
Model
Intel Xeon
processors† Memory RAID
Drive
bays Drives
Ethernet
LOM Slots
Power
supplies
7X69
SG0600
2x Gold 5118 12C
105W 2.3GHz
4x 16GB
1Rx4
RAID 730-
8i
8x 2.5" /
16
Open 4x1Gb
LOM
6 base slots +
LOM
Optional risers
2x 1100W
HS
7X69
SG0C00
2x Gold 5120 14C
105W 2.2GHz
4x 16GB
1Rx4
RAID 730-
8i
8x 2.5" /
16
Open 4x1Gb
LOM
6 base slots +
LOM
Optional risers
2x 1100W
HS
† Processor detail: Quantity, model, core count, TDP, core frequency
Models for EMEA countries
All models have the following common features:
XCC Enterprise
Pull-out LCD Display Panel
Front USB ports are USB 3.0 + USB 2.0
2x 2.8m, 13A/100-250V, C13 to C14 Jumper Cord
Friction Rail Kit
Table 3. Models for EMEA countries
Model
Intel Xeon
processors† Memory RAID Drive bays Drives
Ethernet
LOM Slots
Power
supplies
7X69
A001EA
4x Gold 6130 16C
125W 2.1GHz
4x 32GB RAID 930-
8i
8x 2.5" / 16
(4x
AnyBay)
Open Open 4 base slots + LOM
1x 3x8 Riser
2x 1x16 Risers
2x 2000W HS
7X69
A002EA
4x Gold 5118 12C
105W 2.3GHz
4x 32GB RAID 930-
8i
8x 2.5" / 16
(4x
AnyBay)
Open Open 4 base slots + LOM
1x 3x8 Riser
2x 1x16 Risers
2x 2000W HS
† Processor detail: Quantity, model, core count, TDP, core frequency
Lenovo ThinkSystem SR860 Server 10

Processor options
The SR860 supports Gold and Platinum level processors in the Intel Xeon Processor Scalable Family.
The server supports two or four processors.
Processors 1 and 2 are installed in sockets on the system board.
Processors 3 and 4 are installed on the Processor and Memory Expansion Tray.
The Processor and Memory Expansion Tray has a patent-pending sliding and rolling lift mechanism that
requires only a one-handed operation to insert or remove from the server. It has a toolless design for
superior usability, serviceability and reliability.
Figure 5. SR860 Processor and Memory Expansion Tray
The ordering information for the Processor and Memory Expansion Tray is shown in the following table.
Table 4. Processor and Memory Expansion Tray
Part number Feature code Description
7B27A03953 AUPY SR850/SR860 Processor and Memory Expansion Tray
The following processor quantities are supported:
Two processors, installed in sockets 1 and 2, without the Processor and Memory Expansion Tray
Four processors, installed in all four sockets
Note: Configurations of one or three processors are not supported.
The SR860 supports the Intel Xeon Processor Scalable Family options listed in the following table.
All supported processors have the following characteristics:
14 nm process technology
Six DDR4 memory channels
48 PCIe 3.0 I/O lanes
1 MB L2 cache
1.375 MB L3 cache per core (except where larger, as noted with ** in the table below)
Intel Hyper-Threading Technology
Lenovo ThinkSystem SR860 Server 11

Intel Turbo Boost Technology 2.0
Intel Advanced Vector Extensions 512 (AVX-512)
Intel Ultra Path Interconnect (UPI) links at 10.4 GT/s (replaces QPI)
With two processors installed, the two processors are connected together using one UPI link. With four
processors installed, the processors are connected together using a ring topology, using two UPI links,
one to each adjacent processor in the ring.
Processors with the T suffix have more robust thermal characteristics (higher T-case).
Table 5. Processor options
Part
number
Feature
code Description
Memory
speed
Supports
>768 GB
per CPU L3 cache
AVX-512
FMA units
7XG7A04974 AX8M Intel Xeon Gold 5115 10C 85W 2.4GHz 2400 MHz No 13.75 MB 1
4XG7A09098 B13A Intel Xeon Gold 5117 14C 105W 2.0GHz 2400 MHz No 19.25 MB 1
7XG7A04971 AX7D Intel Xeon Gold 5118 12C 105W 2.3GHz 2400 MHz No 16.5 MB 1
7XG7A04970 AX7C Intel Xeon Gold 5120 14C 105W 2.2GHz 2400 MHz No 19.25 MB 1
7XG7A04972 AX7E Intel Xeon Gold 5120T 14C 105W 2.2GHz 2400 MHz No 19.25 MB 1
7XG7A04959 AX70 Intel Xeon Gold 5122 4C 105W 3.6GHz 2666 MHz* No 16.5 MB** 2*
7XG7A03949 AWEX Intel Xeon Gold 6126 12C 125W 2.6GHz 2666 MHz No 19.25 MB** 2
7XG7A03945 AX6D Intel Xeon Gold 6130 16C 125W 2.1GHz 2666 MHz No 22 MB 2
7XG7A04961 AX72 Intel Xeon Gold 6130T 16C 125W 2.1GHz 2666 MHz No 22 MB 2
7XG7A04957 AX6Y Intel Xeon Gold 6134 8C 130W 3.2GHz 2666 MHz No 24.75 MB** 2
7XG7A03948 AX6W Intel Xeon Gold 6136 12C 150W 3.0GHz 2666 MHz No 24.75 MB** 2
7XG7A03943 AX6Q Intel Xeon Gold 6138 20C 125W 2.0GHz 2666 MHz No 27.5 MB 2
7XG7A03944 AX6R Intel Xeon Gold 6140 18C 140W 2.3GHz 2666 MHz No 24.75 MB 2
7XG7A03946 AX6E Intel Xeon Gold 6142 16C 150W 2.6GHz 2666 MHz No 22 MB 2
7XG7A03942 AWEW Intel Xeon Gold 6148 20C 150W 2.4GHz 2666 MHz No 27.5 MB 2
7XG7A06760 AX6T Intel Xeon Gold 6150 18C 165W 2.7GHz 2666 MHz No 24.75 MB 2
7XG7A03941 AX6P Intel Xeon Gold 6152 22C 140W 2.1GHz 2666 MHz No 30.25 MB 2
7XG7A03938 AX6L Intel Xeon Platinum 8153 16C 125W 2.0GHz 2666 MHz No 22 MB 2
7XG7A03939 AWEV Intel Xeon Platinum 8156 4C 105W 3.6GHz 2666 MHz No 16.5 MB** 2
7XG7A04969 AX7B Intel Xeon Platinum 8158 12C 150W 3.0GHz 2666 MHz No 24.75 MB** 2
7XG7A03937 AWGJ Intel Xeon Platinum 8160 24C 150W 2.1GHz 2666 MHz No 33 MB 2
7XG7A03936 AX6K Intel Xeon Platinum 8164 26C 150W 2.0GHz 2666 MHz No 35.75 MB 2
7XG7A03935 AX6J Intel Xeon Platinum 8170 26C 165W 2.1GHz 2666 MHz No 35.75 MB 2
7XG7A03934 AX6H Intel Xeon Platinum 8176 28C 165W 2.1GHz 2666 MHz No 38.5 MB 2
* All Gold 5000-level processors, except the 5122, support 2400 MHz memory speeds and have one AVX-
512 512-bit FMA units. The 5122 processor supports 2666 MHz and has two FMA units
** L3 cache is 1.375 MB per core except for processor indicated with ** where the cache size is larger
Memory options
The SR860 server supports TruDDR4 memory. TruDDR4 memory uses the highest-quality components
sourced from Tier 1 DRAM suppliers and only memory that meets strict tolerances is selected. It is
compatibility tested and tuned to maximize performance and reliability.
TruDDR4 memory has a unique signature programmed into the DIMM, which enables ThinkSystem servers
to verify whether the memory installed is qualified and supported. From a service and support standpoint,
TruDDR4 memory automatically assumes the system's warranty, and service and support provided
worldwide.
Lenovo ThinkSystem SR860 Server 12

The SR860 supports up to 12 DIMMs per processor, for a total of 48 DIMMs when four processors are
installed. Each processor has six memory channels, and supports one or two DIMMs per channel.
All DIMMs can operate at a speed of 2666 MHz, both at 1 DIMM per channel and 2 DIMMs per channel.
However, if the processor selected has a lower memory bus speed (eg 2400 MHz), then all DIMMs will
operate at that lower speed.
The following table lists the memory options that are available for the SR860 server.
Table 6. Memory options
Part
number
Feature
code Description
Maximum
supported
RDIMMs
7X77A01301 AUU1 ThinkSystem 8GB TruDDR4 2666 MHz (1Rx8 1.2V) RDIMM 48 (12 per processor)
7X77A01302 AUNB ThinkSystem 16GB TruDDR4 2666 MHz (1Rx4 1.2V) RDIMM 48 (12 per processor)
7X77A01303 AUNC ThinkSystem 16GB TruDDR4 2666 MHz (2Rx8 1.2V) RDIMM 48 (12 per processor)
7X77A01304 AUND ThinkSystem 32GB TruDDR4 2666 MHz (2Rx4 1.2V) RDIMM 48 (12 per processor)
LRDIMMs
7X77A01305 AUNE ThinkSystem 64GB TruDDR4 2666 MHz (4Rx4 1.2V) LRDIMM 48 (12 per processor)
The following rules apply when selecting the memory configuration:
The server supports RDIMMs and LRDIMMs. 3DS RDIMM support is planned for 1Q/2018.
UDIMMs are not supported.
Mixing RDIMMs and LRDIMMs is not supported.
Mixing 3DS RDIMMs with either RDIMMs or LRDIMMs is not supported.
Mixing x4 and x8 DIMMs is supported.
For best performance, populate memory DIMMs in quantities of 6 or 12 per processor, so that all
memory channels are used.
The following memory protection technologies are supported:
ECC
SDDC (for x4-based memory DIMMs; look for "x4" in the DIMM description)
ADDDC (for x4-based memory DIMMs)
Memory channel mirroring
Memory rank sparing
If memory channel mirroring is used, then DIMMs must be installed in pairs (minimum of one pair per
processor), and both DIMMs in a pair must be identical in type and size. 50% of the installed capacity is
available to the operating system.
If memory rank sparing is used, then a minimum of one quad-rank DIMM or two single-rank or dual-rank
DIMMs must be installed per populated channel (the DIMMs do not need to be identical). In rank sparing
mode, one rank of a DIMM in each populated channel is reserved as spare memory. The largest rank in
the channel will be automatically selected as the spare rank. The amount of memory available to the
operating system depends on the number, capacity and rank counts of the DIMMs installed.
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Internal storage
The server can support up to 16x 2.5-inch drives, SAS, SATA or NVMe, depending on the selected
backplane configuration. You can mix drives in the same server, but not in the same array. Drives are all
installed from the front of the server. The server also supports one or two M.2 drives, installed in an M.2
adapter.
In this section:
Backplanes and drive bays
Adapters and cabling
Field upgrades
M.2 drives
SED encryption key management with ISKLM
Backplanes and drive bays
The SR860 supports various internal storage configurations based on two different backplanes:
8-drive SAS/SATA backplane for 8x 2.5-inch SAS or SATA drives
8-drive SAS/SATA+AnyBay backplane for either:
8x 2.5-inch SAS or SATA drives
4x 2.5-inch SAS or SATA drives + 4x 2.5-inch U.2 (NVMe) drives
For configure-to-order (CTO) configurations, ordering information for the backplanes is in the following
table.
Table 7. Backplane ordering
Part number Feature code Description
None* AUR5 ThinkSystem 2U 2.5" AnyBay 8-Bay Backplane Kit
None* AURA ThinkSystem 2U/Tower 2.5" SATA/SAS 8-Bay Backplane Kit
* Backplanes are configure-to-order (CTO) only; however, upgrade kits are available that include
backplanes, as described in the Field upgrades section below.
Regular 2.5-inch SAS/SATA drive bays support only SAS or SATA drives, however the Lenovo AnyBay
drive bay design allows a choice of SATA, SAS or NVMe drives. This design enables the flexibility to
configure some of the bays with high-performance PCIe SSDs and still use the remaining bays for high-
capacity HDDs, which is the ideal solution for storage tiering.
Backplane connections are as follows:
The 8-drive SAS/SATA backplane has two SAS/SATA connectors and connects to a supported
RAID controller or SAS HBA.
The 8-drive SAS/SATA+AnyBay backplane has two SAS/SATA connectors and connects to a
supported RAID controller or SAS HBA plus four PCIe connectors to connect to either two PCIe
connectors on the Processor and Memory Expansion Tray (see Figure 4), or four PCIe connectors
on a NVMe Switch adapter installed in a PCIe slot.
Five drive configurations are possible with these two backplanes:
1. 8 drive bays, all SAS/SATA
2. 8 drive bays, where 4 are AnyBay
3. 16 drive bays, all SAS/SATA
4. 16 drive bays, where 4 are AnyBay
5. 16 drive bays, where 8 are AnyBay
These configurations are shown in the following figure.
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Figure 6. Drive bay configurations
Adapters and cabling
This section describes the adapter and cabling requirements for each of the five configurations. There are
two aspects of the server configuration that determine what adapters are needed:
For configurations with two SAS/SATA backplanes, you can select either one 16-port SAS/SATA
adapter or two 8-port SAS/SATA adapters
For AnyBay drive bays, cabling varies depending on whether the server has four processors and the
Processor and Memory Expansion Tray (with its two NVMe connectors) installed. If the server has
only two processors configured, then the NVMe ports are provided by a NVMe Switch adapter.
The five drive bay configurations are shown in the subsections below. Where there are different adapter
and cabling options, or for 2 or 4 processors, they are shown by the letters A, B, C, D. These configuration
numbers are also later references in the Field upgrades section.
1. 8x drive bays, all SAS/SATA
2. 8x drive bays, where 4 are AnyBay
3. 16x drive bays, all SAS/SATA
4. 16x drive bays, where 4 are AnyBay
5. 16x drive bays, where 8 are AnyBay
Tip: The adapters are described in detail in the Controllers for internal storage section.
1. 8 drive bays, all SAS/SATA
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1. 8 drive bays, all SAS/SATA
In this drive bay configuration, all eight drives are connected to one 8-port SAS/SATA RAID adapter or HBA
using two backplane cables, as shown in the following figure.
Figure 7. Adapter and cabling for 8x drive bays, all SAS/SATA
2. 8 drive bays, where 4 are AnyBay
In 8-drive bay configurations where four of those drive bays are AnyBay drive bays, possible adapter and
cabling configurations are shown in the following figure.
When only two processors are selected, a NVMe Switch Adapter is used to provide the four needed NVMe
ports. When four processors are selected, the NVMe ports on the Processor and Memory Expansion Tray
are used to connect to the NVMe connectors on the backplane.
In this configuration you can have up to eight SAS or SATA drives, or you can instead put up to four NVMe
drives in the AnyBay drive bays, along with up to four SAS/SATA drives in the other drive bays.
Figure 8. Adapter and cabling for 8 drive bays, where 4 of the bays are AnyBay
3. 16 drive bays, all SAS/SATA
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3. 16 drive bays, all SAS/SATA
In 16-bay configurations where all 16 drive bays are SAS/SATA drives, you can use either two 8-port
SAS/SATA RAID adapters or HBAs or one 16-port SAS/SATA RAID adapter or HBA. These choices are
shown in the following figure.
Figure 9. Adapter and cabling for 16 drive bays, all SAS/SATA
4. 16 drive bays, where 4 are AnyBay
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4. 16 drive bays, where 4 are AnyBay
In 16-drive configurations where four of the bays are AnyBay drive bays, you can elect to have either one
16-port adapter or two 8-port adapters for SAS/SATA connectivity. In addition, the NVMe connectivity
depends on whether you have two or four processors installed: for two-processor systems, an NVMe
Switch Adapter is required; for four-processor systems, the onboard NVMe ports can be used. The
configurations are shown in the following figure.
Figure 10. Adapter and cabling for 16 drive bays, where 4 of the bays are AnyBay
5. 16 drive bays, where 8 are AnyBay
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5. 16 drive bays, where 8 are AnyBay
In 16-drive configurations where eight of the bays are AnyBay drive bays, you can select either one 16-port
adapter or two 8-port adapters for SAS/SATA connectivity. In addition, the NVMe connectivity depends on
whether you have two or four processors installed: for two-processor systems, two NVMe Switch Adapters
are required; for four-processor systems, the onboard NVMe ports is used for four of the AnyBay drive
bays and an NVMe Switch Adapter is needed for the other four AnyBay drive bays. The configurations are
shown in the following figure.
Figure 11. Adapter and cabling for 16 drive bays, where 8 of the bays are AnyBay
Field upgrades
This section describes how customers can upgrade their 8-bay configurations after the initial purchase of
the server. The two backplane upgrade kits are listed in the following table.
Table 8. Drive backplane upgrades
Part number Feature code Description
7C57A03998 AXP7 ThinkSystem SR850/SR860 2.5" SATA/SAS 8-Bay BP Kit
7C57A03999 AXP8 ThinkSystem SR850/SR860 2.5" AnyBay 8-Bay BP Kit
The 2.5" SATA/SAS 8-Bay BP Kit, 7C57A03998, contains the following items:
1x 8-bay SAS/SATA backplane
1x backplane power cable
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2x 900mm SAS/SATA cables
2x 720mm SAS/SATA cables
8x 1-bay fillers
The 2.5" AnyBay 8-Bay BP Kit, 7C57A03999, contains the following items:
1x 8-bay AnyBay backplane (4 SAS/SATA connectors, 4 AnyBay connectors)
1x backplane power cable
1x 900mm SAS/SATA cable
1x 720mm SAS/SATA cable
4x 750mm NVMe cables for use with NVMe Switch Adapter
2x 900mm NVMe cables for use with onboard NVMe ports
In addition to the backplane kits, you will need a RAID adapter or HBA, and for some upgrades you may
also need an NVMe adapter. Upgrades needed are listed in the following two tables. Upgrading from an 8-
port SAS/SATA adapter to a 16-port SAS/SATA adapter is supported, however that requires removing the
existing 8-port adapter.
Tip: The adapters are described in the Controllers for internal storage section.
The following table lists the available upgrades for SR860 servers with a single SAS/SATA backplane (See
Configuration 1 above).
Table 9. Upgrades for servers with one 8-bay SAS/SATA backplane
Target configuration
Remove
existing
8-port adapter Components to add
Servers with two processors
16x bays (all SAS/SATA) with
2x 8-port adapters (Config 3A)
No 1x SAS/SATA backplane
1x 8-port adapter
16x bays (4x AnyBay) with
2x 8-port adapters, 1x NVMe adapter (Config
4A)
No 1x AnyBay backplane
1x 8-port adapter, 1x NVMe adapter
16x bays (all SAS/SATA) with
1x 16-port adapter (Config 3B)
Yes 1x SAS/SATA backplane
1x 16-port adapter
16x bays (4x AnyBay) with
1x 16-port adapter, 1x NVMe adapter (Config
4B)
Yes 1x AnyBay backplane
1x 16-port adapter, 1x NVMe adapter
Servers with four processors
16x bays (all SAS/SATA) with
2x 8-port adapters (Config 3A)
No 1x SAS/SATA backplane
1x 8-port adapter
16x bays (4x AnyBay) with
2x 8-port adapters (Config 4C)
No 1x AnyBay backplane
1x 8-port adapter, cables to onboard NVMe
ports
16x bays (all SAS/SATA) with
1x 16-port adapter (Config 3B)
Yes 1x SAS/SATA backplane
1x 16-port adapter
16x bays (4x AnyBay) with
1x 16-port adapter (Config 4D)
Yes 1x AnyBay backplane
1x 16-port adapter, cables to onboard NVMe
ports
The following table lists the available upgrades for SR860 servers with a single SAS/SATA backplane (See
Configuration 2 above).
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