Flex System Enterprise ChassisProduct Guide

Abstract

Lenovo Flex System is the next generation of blade technology with more performance and bandwidth and far more capability to consolidate and virtualize than previous systems. Flex System is anchored by the Flex System Enterprise Chassis which enables high-speed performance with integrated servers and networking. Furthermore, its flexible design can meet the needs of varying workloads with independently scalable IT resource pools for higher utilization and lower cost per workload.

Change History

Changes in the August 21 update:

  • The FC3171 8Gb SAN Switch is withdrawn from marketing

Introduction

Flex System is the next generation of blade technology with more performance and bandwidth and far more capability to consolidate and virtualize than previous systems. Flex System is anchored by the Flex System Enterprise Chassis which enables high-speed performance with integrated servers and networking. Furthermore, its flexible design can meet the needs of varying workloads with independently scalable IT resource pools for higher utilization and lower cost per workload.

The Flex System Enterprise Chassis is shown in Figure 1.

Flex System Enterprise Chassis
Figure 1. The Flex System Enterprise Chassis

Did you know?

In addition to the Flex System Enterprise Chassis, Lenovo also offers the Carrier-Grade Chassis for installations requiring tolerance to higher temperatures or for use in environments without filtered air. For information about the Carrier-Grade Chassis, see https://lenovopress.com/tips1285.

Key features

The Flex System Enterprise Chassis is a simple, integrated infrastructure platform that supports a mix of compute, storage, and networking resources to meet the demands of your applications. The solution is easily scalable with the addition of another chassis with the required nodes. With Lenovo XClarity Administrator, multiple chassis can be monitored from a single screen. This flexible 14 node, 10U chassis is designed for a simple deployment now and to scale to meet your needs in the future.

Flexibility and efficiency

The 14 bays in the chassis allow the installation of compute or management nodes, with networking modules in the rear. A single chassis or a group of chassis can be fully customized to the specific needs of the computing environment. IT can meet the needs of the business using a single system across multiple operating environments.

The system monitors and manages power usage on all major chassis components so you have total control over power consumption. Available power supply options are AC and -48V DC. AC power options can be configurable in either a single or three-phase power domain. The chassis supports N+N or N+1 redundant power supplies and an entirely passive mid-plane to meet your reliability needs. The power supplies are 80 PLUS Platinum-certified indicating high energy efficiency. The chassis design also optimizes cooling with cooling zones within the chassis. The system manages the fan modules based on node configuration within the chassis. So, the system can increase the speed of certain fan modules to cool potential hot spots, and use lower speeds for other fan modules where appropriate.

Easily scalable with simple administration

Because the Flex System Enterprise Chassis is an all-in-one solution, it is designed for growth from a single chassis to many. Adding compute, or networking capability is as simple as adding additional nodes or modules. Compute nodes and I/O modules connect to a midplane and are designed to be inserted or removed while the chassis is running. The use of the midplane means that the compute nodes and I/O modules do not need their own power cables and do not need network cables or transceivers to connect to each other within the chassis. These features make it easy to add or replace compute nodes and get them operational quickly.

The simple, highly integrated management system allows you to use the Chassis Management Modules integrated into each chassis to administer a single chassis, and the new Lenovo XClarity Administrator offers agent-free hardware management for compute nodes and networking.

Designed for multiple generations of technology

The Flex System Enterprise Chassis is designed to be the foundation of your IT infrastructure now and into the future. Compute performance requirements are always on the rise and networking demands continue to grow with rising bandwidth needs and a shrinking tolerance for latency. The chassis is designed to scale to meet the needs of your future workloads, offering the flexibility to support current and future innovations in compute, storage, and networking technology.

Locations of key components and connectors

The following figure shows the front of the Enterprise Chassis.

Front of the Flex System Enterprise Chassis
Figure 2. Front of the Flex System Enterprise Chassis

The following figure shows the rear of the Enterprise Chassis.

Rear of the Flex System Enterprise Chassis
Figure 3. Rear of the Flex System Enterprise Chassis

Standard specifications

The following table lists the standard specifications.

Table 1. Standard specifications

Components Specification
Machine type 8721
Firmware Chassis with first generation Chassis Management Module (68Y7030): IBM-signed firmware
Chassis with Chassis Management Module 2 (00FJ669): Lenovo-signed firmware
Form factor 10U rack-mounted unit.
Maximum number of compute nodes 14 half-wide (single bay), seven full-wide (two bays), three double-height full-wide (four bays) or one quadruple-height full-wide (8 bays). Mixing is supported.
Chassis per 42U rack Four.
Nodes per 42U rack 56 half-wide, or 28 full-wide.
Management Chassis Management Modules 2 (CMM2) modules provide chassis management. One or two CMM2s standard, depending on the model and the use of two provides redundancy. Earlier models of the Enterprise Chassis use the first generation CMM. The CMM2 interfaces with the integrated management module (IMM2) integrated in each compute node in the chassis. Optional Lenovo XClarity Administrator for hardware resource management with integrators to VMware vCenter and Microsoft System Center, including virtualization, networking, and storage management. Chassis with first generation CMM can be upgraded to CMM2 however CMM and CMM2 cannot be mixed.
I/O architecture Up to eight lanes of I/O to an I/O adapter card, with each lane capable of up to 25 Gbps bandwidth. Up to 16 lanes of I/O to a half-wide node with two adapters. A wide variety of networking solutions, including Ethernet, Fibre Channel, Fibre Channel over Ethernet (FCoE), and InfiniBand.
Power supplies Up to six power supplies that can provide N+N or N+1 redundant power. AC power supplies are 80 PLUS Platinum certified and provide over 94% efficiency at 50% load and 20% load. Each power supply contains two independently powered 40 mm cooling fan modules. Power supply options are 2500W AC and 2500W -48V DC power supplies. All installed power supplies must be identical.
Fan modules Ten fan modules (eight 80 mm fan modules and two 40 mm fan modules); Four 80 mm and two 40 mm fan modules standard.
Dimensions Height: 440 mm (17.3 in)
Width: 447 mm (17.6 in)
Depth: 800 mm (31.5 in) (measured from front bezel to rear of chassis), 840 mm (33.1 in) (measured from node latch handle to the power supply handle)
Weight Minimum configuration: 96.62 kg (213 lb)
Maximum configuration: 220.45 kg (486 lb)
Sound level 7.5 bels (declared)
Temperature Operating air temperature 5°C to 40°C
Electrical power AC Input power: 200 - 240 V ac (nominal), 50 or 60 Hz
-48 V DC Input power: -48V to -60 V dc (nominal)
Minimum configuration: 0.51 kVA (two power supplies)
Maximum configuration: 13 kVA (six power supplies)
Power consumption 12,900 watts maximum

The following table lists what each standard model, Express model and TopSeller model includes. In addition, each model ships with:

  • One C19 to C20 two-meter power cable for each power supply
  • One Rack Mount Kit

Models

The following table lists the specifications of the standard Enterprise Chassis models.

Table 2. Models
Model Node
bays
CMM*
(2 max)
I/O bays
(used / max)
I/O modules
included
Power
supplies
(6 max)
40mm
fans
(2 max)
80mm
fan
(8 max)
Console
breakout
cable
Standard models
8721-ALx 14 1x CMM2 0 / 4 None 2x 2500W 2 4 1
8721-DLx 14 1x CMM2 0 / 4 None 2x 2500W
-48V DC
2 4 1
TopSeller models – North America
8721-E3U 14 2x CMM2 2 / 4 2x SI4093# 6x 2500W 2 8 1
8721-E4U 14 2x CMM2 2 / 4 2x CN4093# 6x 2500W 2 8 1
8721-E5U 14 1x CMM2 0 / 4 None 2x 2500W 2 4 1
TopSeller models – Latin America & Brazil
8721-E3U 14 2x CMM2 2 / 4 2x SI4093# 6x 2500W 2 8 1
8721-E4U 14 2x CMM2 2 / 4 2x CN4093# 6x 2500W 2 8 1

* CMM1 = first generation Chassis Management Module (68Y7030), CMM2 = Chassis Management Module 2 (00FJ669)
† Model B1x includes two Flex System EN4023 10Gb Scalable Switches, 94Y5212 and two Flex System EN4023 10Gb Scalable Switch (FoD 3) upgrades, 47C9993. The FoD 3 upgrade enables FCoE on all active ports of the switches.
‡ Model B2x includes two Flex System EN4023 10Gb Scalable Switches, 94Y5212 and two Lenovo Flex System FC5022 24-port 16Gb SAN Scalable Switch, 00Y3324.
# Models E3U and E4U include two Flex System Fabric SI4093 System Interconnect Modules, 00FM518 or two Flex System Fabric CN4093 10Gb Converged Scalable Switches, 00FM510, respectively.

Supported compute nodes

The following table lists the compute nodes that are supported in the Flex System Enterprise Chassis. The table also lists the maximum number installable.

Table 3. Supported compute nodes and maximum quantities
Description Machine
type
Firmware
code base
Supported in chassis
8721 with CMM1
(IBM signed)
8721 with CMM2
(Lenovo signed)
Maximum
per chassis*
Lenovo ThinkSystem servers
ThinkSystem SN550 7X16 Lenovo signed No Supported 14
ThinkSystem SN850 7X15 Lenovo signed No Supported 7
Lenovo Flex System compute nodes
Flex System x220 7906 IBM signed Supported Supported 14
Flex System x222 7916 IBM signed Supported Supported 14
Flex System x240 7162 Lenovo signed No Supported 14
Flex System x240 8737 IBM signed Supported Supported 14
Flex System x240 M5 (E5-2600 v3) 9532 Lenovo signed Supported Supported 14
Flex System x240 M5 (E5-2600 v4) 9532 Lenovo signed No Supported 14
Flex System x440 7917 IBM signed Supported Supported 7
Flex System x440 7167 Lenovo signed Supported Supported 7
Flex System x280 X6 7196 Lenovo signed No Supported 7
Flex System x480 X6 7196 Lenovo signed Supported Supported 7
Flex System x880 X6 7196 Lenovo signed Supported Supported 7
Flex System x280 X6 7903 IBM signed Supported Supported 7
Flex System x480 X6 7903 IBM signed Supported Supported 7
Flex System x880 X6 7903 IBM signed Supported Supported 7
Flex System Manager 8731-A1x IBM signed Supported Supported 1**
IBM Power Systems servers
Flex System p24L 1457 IBM signed Supported No 14
Flex System p260 7895-22X IBM signed Supported No 14
Flex System p270 7954-24X IBM signed Supported No 14
Flex System p460 7895-42X IBM signed Supported No 7

† The maximum number of compute nodes supported depends on a number of factors. See below.
** A single Flex System Manager appliance can manage up to 16 chassis

The actual number of compute nodes systems that can be powered on in a chassis depends on these factors:

  • The TDP power rating for the processors that are installed in the compute nodes (x86 servers)
  • The number of power supplies installed in the chassis
  • The capacity of the power supplies installed in the chassis (2100 W or 2500 W)
  • The power redundancy policy used in the chassis (N+1 or N+N)

For the x480 X6 or x880 X6, if two compute nodes are scaled together, then a maximum of 3 scaled complexes can be installed. For the x880 X6, if four compute nodes are scaled together, then a maximum of 1 scaled x880 X6 complexes can be installed. Other bays can be filled with other compute nodes.

The table in the Power Supplies section provides guidelines about what number of compute nodes can be powered on in the Enterprise Chassis, based on the type and number of power supplies installed.

See ServerProven® for the latest information about the supported servers:
http://www.lenovo.com/us/en/serverproven/flexsystem.shtml

Supported I/O modules

The Flex System Enterprise Chassis has four high-speed switch bays that are capable of supporting a variety of I/O architectures.

The switches are installed in switch bays in the rear of the Flex System Enterprise Chassis as shown in the following figure. Switches are normally installed in pairs (bays 1 & 2, and bays 3 & 4), because I/O adapter cards installed in the compute nodes route to two switch bays for performance and redundancy.

Location of the switch bays in the Enterprise Chassis
Figure 4. Location of the switch bays in the Flex System Enterprise Chassis

The following table lists the switches that are supported by the chassis.

Note: Some switches are withdrawn from marketing.

Table 4. I/O modules and upgrades
Description Part number Firmware
code base
Supported in chassis
8721 with CMM
(IBM signed)
8721 with CMM2
(Lenovo signed)
25 Gb Ethernet module
ThinkSystem NE2552E Flex Switch 4SG7A08868 Lenovo† No Supported
40 Gb Ethernet module
EN6131 40Gb Ethernet Switch 90Y9346 Vendor Supported Supported
10 Gb Ethernet modules
EN4093R 10Gb Scalable Switch 00FM514 Lenovo† No Supported
CN4093 10Gb Converged Scalable Switch 00FM510 Lenovo† No Supported
SI4091 10Gb System Interconnect Module 00FE327 Lenovo† No Supported
SI4093 System Interconnect Module 00FM518 Lenovo† No Supported
EN4091 10Gb Ethernet Pass-thru 88Y6043 IBM Supported Supported
EN4093 10Gb Scalable Switch 49Y4270* IBM† Supported Supported
EN4093R 10Gb Scalable Switch 95Y3309* IBM† Supported Supported
CN4093 10Gb Converged Scalable Switch 00D5823* IBM† Supported Supported
SI4093 System Interconnect Module 95Y3313* IBM† Supported Supported
Cisco Nexus B22 Fabric Extender 94Y5350 Vendor Supported Supported
EN4023 10Gb Scalable Switch 94Y5212* Vendor Supported Supported
1 Gb Ethernet switch
EN2092 1Gb Ethernet Scalable Switch 49Y4294 IBM† Supported Supported
Fibre Channel switches
FC5022 16Gb SAN Scalable Switch 88Y6374 Vendor Supported Supported
FC5022 24-port 16Gb SAN Scalable Switch 00Y3324 Vendor Supported Supported
FC5022 24-port 16Gb ESB SAN Scalable Switch 90Y9356 Vendor Supported Supported
FC3171 8Gb SAN Switch 69Y1930* Vendor Supported Supported
FC3171 8Gb SAN Pass-thru 69Y1934* Vendor Supported Supported
InfiniBand switches
IB6131 InfiniBand Switch (QDR/FDR) 90Y3450 Vendor Supported Supported

* Withdrawn from marketing
† For these switches, IBM signed switch firmware is up to Version 7.x and Lenovo signed switch firmware is Version 8.x onwards

I/O architecture

Each half-wide compute node (such as the ThinkSystem SN550) has two adapter slots, and each full-wide compute node (such as the ThinkSystem SN850) has four adapter slots. The adapter slots in each compute node route through the chassis midplane to the switch bays. The architecture supports up to eight ports per adapter.

The following figure shows how two-port adapters are connected to switches installed in the chassis.

Logical layout of the interconnects between two-port I/O adapters and I/O modules
Figure 5. Logical layout of the interconnects between two-port I/O adapters and I/O modules

A four-port adapter doubles the connections between each adapter and switch pair (for example, a four-port adapter in A1 in each compute node routes two connections to switch 1 and two connections to switch 2).

The following figure shows how four-port adapters are connected to switches that are installed in the chassis.

Logical layout of the inter-connections between four-port I/O adapters and I/O modules
Figure 6. Logical layout of the inter-connections between four-port I/O adapters and I/O modules

The following table shows the connections between adapter slots in the compute nodes to the switch bays in the chassis.

Notes:

  • To make use of all four ports of a four-port adapter across all blade servers, the switch must have 28 internal ports enabled, and two switches must be installed in the bays as indicated.
  • To make use of six ports of a eight-port adapter across all blade servers, the switch must have 42 internal ports enabled, and two switches must be installed in the bays as indicated. Ports 7 and 8 of an eight-port adapter are reserved for future use. The chassis supports all eight ports, but there are no switches that are available that connect to these ports.
Table 5. Adapter to I/O bay correspondence
I/O adapter slot
in the server
Port on the adapter*
Corresponding I/O module bay
in the chassis
Bay 1 Bay 2 Bay 3 Bay 4
Slot 1 Port 1 Yes No No No
Port 2 No Yes No No
Port 3 (for 4 & 8-port cards) Yes No No No
Port 4 (for 4 & 8-port cards) No Yes No No
Port 5 (for 8-port cards) Yes No No No
Port 6 (for 8-port cards) No Yes No No
Port 7 (for 8-port cards) Yes No No No
Port 8 (for 8-port cards) No Yes No No
Slot 2 Port 1 No No Yes No
Port 2 No No No Yes
Port 3 (for 4 & 8-port cards) No No Yes No
Port 4 (for 4 & 8-port cards) No No No Yes
Port 5 (for 8-port cards) No No Yes No
Port 6 (for 8-port cards) No No No Yes
Port 7 (for 8-port cards) No No Yes No
Port 8 (for 8-port cards) No No No Yes

Chassis Management Module

The Chassis Management Module (CMM) provides single-chassis management in the Enterprise Chassis. The CMM is used to communicate with the integrated management module (IMM) controller in each compute node to provide system monitoring, event recording and alerts, and to manage the chassis, its devices, and the compute nodes.

The chassis has one CMM installed standard but supports two CMMs for redundancy. If one CMM fails, the second CMM can detect its inactivity and activate itself to take control of the system without any disruption. The CMM is central to the management of the chassis and is required in the Enterprise Chassis.

There are two versions of the Chassis Management Module available:

  • Chassis Management Module 2 (00FJ669) -- contains a Trusted Platform Module (TPM) v2.0 chip and has a Lenovo-signed firmware codebase. This module is recommended for new installation.
  • First generation Chassis Management Module (68Y7030) -- contains a Trusted Platform Module (TPM) v1.1 chip and has an IBM-signed firmware codebase

Standard and TopSeller models of the chassis contain either a CMM (68Y7030) or a CMM2 (00FJ669) as listed in Table 2. The selection of CMM determines which compute nodes and I/O modules are supported in the chassis. See Tables 3 and 4 respectively for details. You can replace a CMM with a CMM2, however mixing is not supported -- you cannot have a chassis with one CMM (68Y7030) and one CMM2 (00FJ669).

The following table shows the ordering information.

Table 6. Chassis Management Module

Part
number
Feature codes* Description Standard /
Maximum
68Y7030 A0TM / A0UE Flex System Chassis Management Module 1 / 2
00FJ669 ASPT / ASQ8 Flex System Chassis Management Module 2 1 / 2

* The first feature code corresponds to the base CMM installed in the chassis. The second feature code corresponds to the optional second CMM which provides redundancy.

The following figure shows the Chassis Management Module. See Figure 3 for the location of the CMM in the chassis.

Chassis Management Module
Figure 7. Chassis Management Module

The CMM provides these functions:

  • Power control
  • Fan management
  • Chassis and compute node initialization
  • Switch management
  • Diagnostics: chassis, I/O options, and compute nodes
  • Resource discovery and inventory management
  • Resource alerts and monitoring management
  • Chassis and compute node power management
  • Security policy management
  • Role-based access control
  • Support for up to 84 local CMM user accounts
  • Support for up to 32 simultaneous sessions

The CMM has the following connectors:

  • USB connection. This connection can be used for insertion of a USB media key for tasks, such as firmware updates.
  • 10/100/1000 Mbps RJ45 Ethernet connection to connect to a management network. The CMM can be managed via this Ethernet port.
  • Serial port (mini-USB) for local command-line interface (CLI) management. Use serial cable 90Y9338 for connectivity.

The CMM has the following light-emitting diodes (LEDs) that provide the following information:

  • Power-on LED
  • Activity LED
  • Error LED
  • Ethernet port link and port activity LEDs

The CMM also incorporates a reset button, which, when pressed, resets the CMM back to its default condition. It has two functions, depending on how long the button is pressed:

  • When pressed for less than 5 seconds, the CMM restarts.
  • When pressed for more than 5 seconds (for example, 10 or 15 seconds), the CMM configuration is reset to the manufacturing defaults, and then the CMM restarts.

The CMM supports a web-based graphical user interface (GUI) that provides a way to perform CMM functions within a supported web browser. You can also perform management functions through the CMM command-line interface (CLI). Both the web-based GUI and the CLI are accessible via the single RJ45 Ethernet connector on the CMM or from any other system that is connected to the same (management) network.

The CMM has the following default static IPv4 address. By default, the CMM is configured to respond to Dynamic Host Configuration Protocol (DHCP) first before using its static IPv4 address:

  • IP address: 192.168.70.100
  • Subnet: 255.255.255.0
  • User ID: USERID (all capital letters)
  • Password: PASSW0RD (all capital letters, with a zero instead of the letter O)

The CMM does not have a fixed static IPv6 IP address, by default. Initial access to the CMM in an IPv6 environment can be performed by either using the IPv4 IP address or the IPv6 link-local address. The IPv6 link-local address is automatically generated based on the Media Access Control (MAC) address of the CMM.

The CMM is the key component enabling the integrated management network. Internally, the CMM has a multiple port L2 1Gigabit Ethernet switch with dedicated links to all 14 node bays, all four switch bays, and the second CMM, if installed. These connections are all point-to-point, ensuring dedicated bandwidth. The 1GbE links are full-duplex, fixed speed (not auto-negotiate) links. The 1 GbE management network is only accessible by each node's management controller (IMMv2 or FSP), each switch module's management interfaces, the CMM, and the Flex System Manager (FSM) management appliance. This design permits the separation of the management network from the data network.

The CMM has a high-security policy that is enabled by default, which means that the following policies are enabled by default:

  • Strong password policies with automatic validation and verification checks
  • Required update of the default passwords after the initial setup
  • Only secure communication protocols, such as SSH and SSL. Unencrypted protocols, such as HTTP, Telnet, and SNMPv1, are disabled.
  • Certificates to establish secure, trusted connections for applications that run on the management processors

Lenovo XClarity Administrator

Lenovo XClarity Administrator is centralized resource management solution aimed at reducing complexity, speeding response and enhancing availability of both Lenovo server systems and solutions.

Lenovo XClarity Administrator provides agent-free hardware management for System x rack servers and Flex System compute nodes and components, including the Chassis Management Module and Flex System I/O modules. The following figure shows the Lenovo XClarity Administrator interface, where both Flex System components and rack servers are being managed and can be seen on the dashboard.

Lenovo XClarity Administrator dashboard
Figure 8. Lenovo XClarity Administrator dashboard

For information about Lenovo XClarity Administrator, see the Lenovo Press Product Guide:
http://lenovopress.com/tips1200

Power supplies

A maximum of six hot-swap power supplies can be installed in the Enterprise Chassis. In models where only two power supplies are standard, additional power supplies are orderable per the following table. All installed power supplies must be the same.

Note: The following power supplies are withdrawn from marketing:

  • 2100W Power Module, 47C7633
  • HVDC 2500W Power Module, 00AM765
Table 7. Ordering part number and feature code
Description Part number Feature code
Flex System Enterprise Chassis 2500W Power Module 43W9049 A0UC
Flex System Enterprise Chassis -48V DC 2500W Power Module 00FJ635 A5VC

Each AC power supply part number ships with one 2.0m (6.5 ft) 16A/100-250V, C19 to IEC 320-C20 rack power cable, feature 6292. Other supported AC line cords including three-way split line cords, are listed in the following table.

Table 8. Supported AC line cords

Description Part number Feature code
4.3m, 16A/208V, C19 to NEMA L6-20P (US) Line Cord 40K9772 6275
2.5m, 16A/100-240V, C19 to IEC 320-C20 Rack Power Cable 39Y7916 6252
2m, 16A/100-250V, C19 to IEC 320-C20 Rack Power Cable None 6292
4.3m, US/CAN, NEMA L15-30P - (3P+Gnd) to 3X IEC 320 C19 00D7192 A2Y3
4.3m, EMEA/AP, IEC 309 32A (3P+N+Gnd) to 3X IEC 320 C19 00D7193 A2Y4
4.3m, A/NZ, (PDL/Clipsal) 32A (3P+N+Gnd) to 3X IEC 320 C19 00D7194 A2Y5

The -48V DC power supply operates at -48V to -60 V dc (nominal) and has a Molex 1060 Power Connector. The power supply ships with one 2.0m DC power cord (FRU part number 69Y1652)

The following figure shows the power supply and highlights the light-emitting diodes (LEDs).

Power supply option
Figure 9. Power supply option

The AC power supplies are 80 PLUS Platinum-certified. The 2500W modules are 2500 Watts output rated at 200VAC to 208VAC (nominal), and 2750W at 220VAC to 240VAC (nominal). The power supply has an oversubscription rating of up to 3538 Watts output at 200VAC. The power supply operating range is 200-240 VAC. The power supplies also contain two dual independently powered 40mm cooling fan modules that are powered not from the power supply itself, but from the chassis midplane. The fan modules are variable speed and controlled by the chassis fan logic.

80 PLUS is a performance specification for power supplies used within servers and computers. To meet the 80 PLUS standard, the power supply must have an efficiency of 80% or greater, at 20%, 50%, and 100% of rated load with PF of .09 or greater. The standard has several grades, such as Bronze, Silver, Gold, and Platinum. More information on 80 PLUS is available at http://www.80PLUS.org

The chassis allows configurations of power supplies to give N+N or N+1 redundancy. A chassis can operate on only three power-supply units (PSUs) with no redundancy, but N+1 or N+N is advised. Three power supplies (or six with N+N redundancy) allow for a balanced three-phase configuration.

All power supply modules are combined into a single power domain within the chassis, which distributes power to each of the compute nodes, I/O modules, and ancillary components through the Enterprise Chassis midplane. The midplane is a highly reliable design with no active components. Each power supply is designed to provide fault isolation and is hot swappable.

In the case of the 2500W supplies, power monitoring of both the DC and AC signals allows the Chassis Management Module to accurately monitor the power supplies.

The following figure shows the compute node bay numbering (left) and power supply bay numbering (right).

Power supply bay numbering
Figure 10. Power supply bay numbering

The following table shows the number of compute nodes that are supported in the chassis based on the power supplies used (2100W or 2500W), the number of power supplies installed, and the power redundancy policy enabled (N+1 or N+N).

Note: 2100W power supplies are now withdrawn from marketing.

In this table, the colors of the cells have the following meaning:

  • Green cell: Supported with no restrictions as to the number of compute nodes that can be installed
  • Yellow cell: Supported but with restrictions on the number of compute nodes that can be installed.

Note: These tables assume the chassis is filled with idential compute nodes. For more complex configurations, use the Power Configurator:
https://support.lenovo.com/documents/LNVO-PWRCONF

Table 9. Specific number of compute nodes supported based on installed power supplies
CPU
TDP
2100W power supplies*
2500W power supplies
N+1, N=5
6 total
N+1, N=4
5 total
N+1, N=3
4 total
N+N, N=3
6 total
N+1, N=5
6 total
N+1, N=4
5 total
N+1, N=3
4 total
N+N, N=3
6 total
ThinkSystem SN550
70 W 14 14 11 11 14 14 14 14
85 W 14 14 11 11 14 14 14 14
105 W 14 14 11 11 14 14 14 14
125 W 14 14 11 11 14 14 13 14
130 W 14 13 11 11 14 14 12 13
140 W 14 13 11 11 14 14 12 13
150 W 14 12 11 11 14 14 12 12
165 W 14 12 11 11 14 14 11 12
ThinkSystem SN850
85 W 7 7 5 5 7 7 7 7
105 W 7 7 5 5 7 7 7 7
125 W 7 7 5 5 7 7 6 7
130 W 7 6 5 5 7 7 6 6
140 W 7 6 5 5 7 7 6 6
150 W 7 6 5 5 7 7 6 6
165 W 7 6 5 5 7 7 5 6
Flex System x220
50 W 14 14 14 14 14 14 14 14
60 W 14 14 14 14 14 14 14 14
70 W 14 14 14 14 14 14 14 14
80 W 14 14 14 14 14 14 14 14
95 W 14 14 14 14 14 14 14 14
Flex System x222
50 W 14 14 13 14 14 14 14 14
60 W 14 14 12 12 14 14 14 14
70 W 14 14 11 12 14 14 14 14
80 W 14 14 10 11 14 14 13 14
95 W 14 13 9 10 14 14 12 13
Flex System x240
60 W 14 14 11 11 14 14 14 14
70 W 14 14 11 11 14 14 14 14
80 W 14 14 11 11 14 14 14 14
95 W 14 14 11 11 14 14 14 14
115 W 14 14 11 11 14 14 14 14
130 W 14 14 11 11 14 14 13 14
135 W 14 14 11 11 14 14 13 14
Flex System x240 M5
52 W 14 14 11 11 14 14 14 14
55 W 14 14 11 11 14 14 14 14
65 W 14 14 11 11 14 14 14 14
75 W 14 14 11 11 14 14 14 14
85 W 14 14 11 11 14 14 14 14
90 W 14 14 11 11 14 14 14 14
105 W 14 14 11 11 14 14 13 14
120 W 14 14 11 11 14 14 13 14
135 W 14 13 11 11 14 14 12 13
145 W 14 13 11 11 14 14 12 13
Flex System x440
95 W 7 7 6 6 7 7 7 7
115 W 7 7 5 5 7 7 7 7
130 W 7 7 5 5 7 7 6 7
Flex System x880 X6, x480 X6 and x280 X6
105 W 7 7 5 5 7 7 7 7
130 W 7 7 5 5 7 7 7 7
155 W 7 7 5 5 7 7 7 7
Flex System V7000 Storage Node
N/A 3 3 3 3 3 3 3 3
Flex System p24L
All 14 12 9 10 14 14 12 13
Flex System p260
All 14 12 9 10 14 14 12 13
Flex System p270
All 14 12 9 9 14 14 12 12
Flex System p460
All 7 6 4 5 7 7 6 6

* The 2100W Power Module, part number 47C7633, is withdrawn from marketing

Fan modules

The Enterprise Chassis supports up to a total of ten hot-swap fan modules: two 40 mm (1.57 in) fan modules and eight 80 mm (3.14 in) fan modules.

The two 40 mm fan modules distribute airflow to the I/O modules and chassis management modules. Both of these fan modules ship with the chassis. The 80 mm fan modules distribute airflow to the compute nodes through the chassis from front to rear. Each 80 mm fan module actually contains two 80 mm fan modules, back to back at each end of the module, which are counter-rotating. The following figure shows the 80 mm fan module.

80 mm (3.14 in) fan module
Figure 11. 80 mm fan module

Four 80 mm fan modules are installed standard in chassis model 8721-A1x and CTO orders. The maximum number of 80 mm fan modules that can be installed is eight. Ordering information is shown in the following table. When the modules are ordered as a part number, they are supplied as a pair. The feature codes is comprised of one fan.

Table 10. Fan module ordering information

Description Part number Feature code
Flex System Enterprise Chassis 80mm Fan Module 43W9078
(2 fan modules)
A0UA
(1 fan module)

The 80 mm fan modules are populated, depending on the nodes installed. To support the base configuration and up to four nodes, chassis model 8721-A1x ships with four 80 mm fan modules and two 40 mm fan modules preinstalled. There are two cooling zones for the nodes: a left zone and a right zone. Fan modules must be installed in pairs as shown in the following figure. If there are insufficient fan modules for the number of nodes installed, the compute nodes might be throttled to balance heat generation and cooling capacity.

Fan module locations and cooling zones
Figure 12. Fan module locations and cooling zones

The 40 mm fan modules are always required. Additional 80 mm fan modules are required as listed in the following table.

Table 11. 80 mm fan module requirements

Description 80 mm fan module requirements
Up to four half-wide compute nodes (node bays 1 - 4) 4 fan modules (fan bays 1, 2, and 6, 7)
Up to eight half-wide compute nodes (node bays 1 - 8) 6 fan modules (fan bays 1, 2, 3 and 6, 7, 8)
All 14 compute node bays (node bays 1 - 14) 8 fan modules (fan bays 1, 2, 3, 4 and 6, 7, 8, 9)

Physical specifications

Dimensions:

  • Height: 440 mm (17.3 inches)
  • Width: 447 mm (17.6 in)
  • Depth, measured from front bezel to rear of chassis: 800 mm (31.5 in)
  • Depth, measured from node latch handle to the power supply handle: 840 mm (33.1 in)

Weight:

  • Minimum configuration: 96.62 kg (213 lb)
  • Maximum configuration: 220.45 kg (486 lb)

Shipping dimensions (approximate):

  • Height: 81 cm (32 in)
  • Length: 102 cm (40 in)
  • Width: 71 cm (24 in)

Supported environment

The Flex System Enterprise Chassis complies with ASHRAE Class A3 specifications.

The following environment is the supported operating environment.

Temperature:

  • 0 - 914 m (0 - 3,000 ft): 5 - 40 °C (41 - 104 °F)
  • 914 m - 3048 m (3,000 - 10,000 ft): The maximum ambient temperature drops 1 °C for every additional 178 m (584 ft) increase in altitude until the maximum temperature is 28 °C at 3,048 m (10,000 ft)

Relative humidity: 8% - 85%

Maximum altitude: 3,048 m (10,000 ft)

Electrical power:

  • 200 - 240 V ac (nominal), 50 or 60 Hz
  • Minimum configuration: 0.51 kVA (two power supplies)
  • Maximum configuration: 13 kVA (six power supplies)

Power consumption: 12,900 watts maximum

Thermal output, full configuration - 12,900 watts (43,900 Btu/hr)

Acoustical noise emissions for Flex Chassis:

  • 7.5 bels operating
  • 7.5 bels idling

The noise emission level stated is the declared (upper limit) sound power level, in bels, for a random sample of machines. All measurements are made in accordance with ISO 7779 and reported in conformance with ISO 9296.

Warranty options

The system has a three-year warranty with 24x7 standard call center support and 9x5 Next Business Day onsite coverage. Also available are Lenovo Services warranty maintenance upgrades and post-warranty maintenance agreements, with a well-defined scope of services, including service hours, response time, term of service, and service agreement terms and conditions.

Lenovo warranty service upgrade offerings are country-specific. Not all warranty service upgrades are available in every country. For more information about Lenovo warranty service upgrade offerings that are available in your country, go to the Data Center Advisor and Configurator (formerly known as LESC) website http://lesc.lenovo.com, then do the following:

  1. In the Customize a Model box in the middle of the page, select the Services option in the Customization Option dropdown menu
  2. Enter in the machine type & model of the system
  3. From the search results, you can click either Deployment Services or Support Services to view the offerings

The following table explains warranty service definitions in more detail.

Table 12. Warranty service definitions
Term Description
On-site service A service technician will arrive at the client’s location for equipment service.
24x7x2 hour A service technician is scheduled to arrive at the client’s location within two hours after remote problem determination is completed. Lenovo provides service around the clock, every day, including Lenovo holidays.
24x7x4 hour A service technician is scheduled to arrive at the client’s location within four hours after remote problem determination is completed. Lenovo provides service around the clock, every day, including Lenovo holidays.
9x5x4 hour A service technician is scheduled to arrive at the client’s location within four business hours after remote problem determination is completed. Lenovo provides service 8:00 am - 5:00 pm in the client's local time zone, Monday-Friday, excluding Lenovo holidays. For example, if a customer reports an incident at 3:00 pm on Friday, the technician will arrive by 10:00 am the following Monday.
9x5 next business day A service technician is scheduled to arrive at the client’s location on the business day after remote problem determination is completed. Lenovo provides service 8:00 am - 5:00 pm in the client's local time zone, Monday - Friday, excluding Lenovo holidays. Calls received after 4:00 pm local time require an extra business day for service dispatch. Next business day service is not guaranteed.
Committed Repair Problems receive priority handling so that repairs are completed within the committed time of 6, 8, or 24 hours. Lenovo provides service 24 hours/day, every day, including Lenovo holidays.

The following Lenovo warranty service upgrades are available:

  • Warranty and maintenance service upgrades:
    • Three, four, or five years of 9x5 or 24x7 service coverage
    • Onsite response from next business day to 2 or 4 hours
    • Committed repair service
    • Warranty extension of up to 5 years
    • Post warranty extensions
  • Committed Repair Service

    Committed Repair Services enhances the level of Warranty Service Upgrade or Post Warranty/Maintenance Service offering associated with the selected systems. Offerings vary and are available in select countries.

    • Priority handling to meet defined time frames to restore the failing machine to good working condition
    • Committed repair service levels are measured within the following coverage hours:
      • 24x7x6: Service performed 24 hours per day, 7 days per week, within 6 hours
      • 24x7x8: Service performed 24 hours per day, 7 days per week, within 8 hours
      • 24x7x24: Service performed 24 hours per day, 7 days per week, within 24 hours
  • Hard Disk Drive Retention

    Lenovo’s Hard Disk Drive Retention (HDDR) service is a multi-drive hard drive retention offering that ensures your data is always under your control, regardless of the number of hard drives that are installed in your Lenovo server. In the unlikely event of a hard drive failure, you retain possession of your hard drive while Lenovo replaces the failed drive part. Your data stays safely on your premises, in your hands. The Hard Drive Retention service can be purchased in convenient bundles with our warranty upgrades and extensions.

  • Microcode Support

    Keeping microcode current helps prevent hardware failures and security exposure. There are two levels of service: analysis of the installed base and analysis and update where required. Offerings vary by country and can be bundled with other warranty upgrades and extensions.

  • Remote Technical Support Services (RTS)

    RTS provides comprehensive technical call center support for covered servers, storage, operating systems, and applications. Providing a single source for support of hardware and software issues, RTS can reduce problem resolution time, decreasing the cost to address technical problems and increasing uptime. Offerings are available for Windows, Linux, IBM Systems Director, VMware, Microsoft business applications, and Lenovo System x storage devices, and IBM OEM storage devices.

Regulatory compliance

The server conforms to the following standards:

  • ASHRAE Class A3
  • FCC - Verified to comply with Part 15 of the FCC Rules Class A
  • Canada ICES-004, issue 3 Class A
  • UL/IEC 60950-1
  • CSA C22.2 No. 60950-1
  • NOM-019
  • Argentina IEC 60950-1
  • Japan VCCI, Class A
  • IEC 60950-1 (CB Certificate and CB Test Report)
  • China CCC (GB4943); (GB9254, Class A); (GB17625.1)
  • Taiwan BSMI CNS13438, Class A; CNS14336
  • Australia/New Zealand AS/NZS CISPR 22, Class A
  • Korea KN22, Class A, KN24
  • Russia/GOST ME01, IEC 60950-1, GOST R 51318.22, GOST R 51318.249, GOST R 51317.3.2, GOST R 51317.3.3
  • CE Mark (EN55022 Class A, EN60950-1, EN55024, EN61000-3-2, EN61000-3-3)
  • CISPR 22, Class A
  • TUV-GS (EN60950-1/IEC 60950-1, EK1-ITB2000)

Top-of-rack Ethernet switches

For enterprise-class installations with multiple Flex System Enterprise Chassis configurations, a top-of-rack Ethernet switch from Lenovo provides the necessary level of networking between racks of systems and the rest of your production network.

The following table lists the Ethernet LAN switches that are offered by Lenovo.

Table 13. Ethernet LAN switches
Part number Description
1 Gb Ethernet switches
7165H1X Juniper EX2300-C PoE Switch
7165H2X Juniper EX2300-24p PoE Switch
7Y810011WW Lenovo ThinkSystem NE0152T RackSwitch (Rear to Front)
7Z320O11WW Lenovo ThinkSystem NE0152TO RackSwitch (Rear to Front, ONIE)
7159BAX Lenovo RackSwitch G7028 (Rear to Front)
7159CAX Lenovo RackSwitch G7052 (Rear to Front)
7159G52 Lenovo RackSwitch G8052 (Rear to Front)
10 Gb Ethernet switches
7159A1X Lenovo ThinkSystem NE1032 RackSwitch (Rear to Front)
7159B1X Lenovo ThinkSystem NE1032T RackSwitch (Rear to Front)
7159C1X Lenovo ThinkSystem NE1072T RackSwitch (Rear to Front)
7159BR6 Lenovo RackSwitch G8124E (Rear to Front)
7159CRW Lenovo RackSwitch G8272 (Rear to Front)
7159GR6 Lenovo RackSwitch G8296 (Rear to Front)
25 Gb Ethernet switches
7159E1X Lenovo ThinkSystem NE2572 RackSwitch (Rear to Front)
7Z210O21WW Lenovo ThinkSystem NE2572O RackSwitch (Rear to Front, ONIE)
100 Gb Ethernet switches
7159D1X Lenovo ThinkSystem NE10032 RackSwitch (Rear to Front)
7Z210O11WW Lenovo ThinkSystem NE10032O RackSwitch (Rear to Front, ONIE)

For more information, see the list of Product Guides in the following switch categories:

Fibre Channel SAN switches

The following table lists the Fibre Channel SAN switches that are offered by Lenovo and can be used with this system.

Table 14. Fibre Channel SAN switches
Part number Description
8 Gb FC
3873AR3 Lenovo B300, 8 ports licensed, 8x 8Gb SWL SFPs, 1 PS, Rail Kit, 3Yr FW
3873AR6 Lenovo B300, E_Port License, 8 ports licensed, 8x 8Gb SWL SFPs, 1 PS, Rail Kit, 1Yr FW
16 Gb FC
6559F2A Lenovo ThinkSystem DB610S, 8 ports licensed, 8x 16Gb SWL SFPs, 1 PS, Rail Kit, 1Yr FW
6559F1A Lenovo ThinkSystem DB610S, ENT Bundle, 24 ports licensed, 24x 16Gb SWL SFPs, 1 PS, Rail Kit, 1Yr FW
6559D1Y Lenovo ThinkSystem DB610S, ENT Bundle, 24 ports licensed, 24x 16Gb SWL SFPs, 1 PS, Rail Kit, 3Yr FW
3873ER1 Lenovo B6505, 12 ports licensed, 12x 16Gb SWL SFPs, 1 PS, Rail Kit, 1Yr FW
3873AR5 Lenovo B6505, 12 ports licensed, 12x 16Gb SWL SFPs, 1 PS, Rail Kit, 3Yr FW
3873IR1 Lenovo B6510, 24 ports licensed, 24x 16Gb SWL SFPs, 2 PS, Rail Kit, 1Yr FW
3873BR3 Lenovo B6510, 24 ports licensed, 24x 16Gb SWL SFPs, 2 PS, Rail Kit, 3Yr FW
32 Gb FC
6559F3A Lenovo ThinkSystem DB610S, 8 ports licensed, No SFPs, 1 PS, Rail Kit, 1Yr FW
6559D3Y Lenovo ThinkSystem DB610S, 8 ports licensed, No SFPs, 1 PS, Rail Kit, 3Yr FW
6415G3A Lenovo ThinkSystem DB620S, 24 ports licensed, No SFPs, 2 PS, Rail Kit, 1Yr FW
6415H11 Lenovo ThinkSystem DB620S, 24 ports licensed, 24x 32Gb SWL SFPs, 2 PS, Rail Kit, 1Yr FW
6415G11 Lenovo ThinkSystem DB620S, 24 ports licensed, 24x 32Gb SWL SFPs, 2 PS, Rail Kit, 3Yr FW
6415H2A Lenovo ThinkSystem DB620S, ENT Bundle, 48 ports licensed, 48x 32Gb SWL SFPs, 2 PS, Rail Kit, 1Yr FW
6684D2A Lenovo ThinkSystem DB400D 32Gb FC Director, ENT. Feature set, 4 Blade slots, 8U, 1Yr FW
6684B2A Lenovo ThinkSystem DB400D 32Gb FC Director, ENT. Feature set, 4 Blade slots, 8U, 3Yr FW
6682D1A Lenovo ThinkSystem DB800D 32Gb FC Director, ENT. Feature set, 8 Blade slots, 14U, 1Yr FW

For more information, see the list of Product Guides in the Rack SAN Switches category:
http://lenovopress.com/storage/switches/rack#rt=product-guide

Power distribution units

Power planning for an Flex System Enterprise Chassis is essential.

The Enterprise Chassis has a maximum of six power supplies installed. So, careful consideration must be given to providing the best power-optimized source. Both N+N and N+1 configurations are supported for maximum flexibility in power redundancy. Each AC power supply in the chassis has a 16A C20 three-pin socket and can be fed by a C19 power cable, from a suitable supply.

The chassis has the ability to accommodate a maximum of six power supplies, so it is possible to balance a three-phase power input into a single chassis or a group of chassis. The chassis power system is designed for efficiency using data center power consisting of three-phase, 60A Delta 200 VAC (North America) or three-phase 32A wye 380-415 VAC (international). The chassis can also be fed from single-phase 200 - 240VAC supplies, if required.

For further details, see the Flex System Enterprise Chassis Power Requirements Guide, available from:
https://support.lenovo.com/documents/LNVO-POWINF

Table 15. Power distribution units

Part number Description
Switched and monitored AC PDUs
46M4002 1U 9 C19/3 C13 Active Energy Manager DPI PDU
46M4003 1U 9 C19/3 C13 Active Energy Manager 60A 3 Phase PDU
46M4167 1U 9 C19/3 C13 Switched and Monitored 30A 3 Phase PDU
46M4134 0U 12 C19/12 C13 Switched and Monitored 50A 3 Phase PDU
46M4140 0U 12 C19/12 C13 50A 3 Phase PDU
Enterprise AC PDUs
71762MX Ultra Density Enterprise PDU C19 PDU+ (WW)
71762NX Ultra Density Enterprise PDU C19 PDU (WW)
71763MU Ultra Density Enterprise PDU C19 3 phase 60A PDU+ (NA)
71763NU Ultra Density Enterprise PDU C19 3 phase 60A PDU (NA)
39Y8923 DPI 60A Three Phase C19 Enterprise PDU with IEC309 3P+G (208 V) fixed line cord
39Y8948 DPI Single Phase C19 Enterprise PDU without line cord
Front-end AC PDUs
39Y8934 DPI 32amp/250V Front-end PDU with IEC 309 2P+Gnd connector
39Y8938 30amp/125V Front-end PDU with NEMA L5-30P connector
39Y8939 30amp/250V Front-end PDU with NEMA L6-30P connector
39Y8940 60amp/250V Front-end PDU with IEC 309 60A 2P+N+Gnd connector
DC PDUs
44T0966 1U Higher Voltage DC PDU (240V/380V)

Uninterruptible power supply units

The Flex System Enterprise Chassis supports attachments to the uninterruptible power supply units listed in the following table.

Table 16. Uninterruptible power supply units

Part number Description
55946KX RT6kVA 3U Rack or Tower UPS (200-240VAC)
55948KX RT8kVA 6U Rack or Tower UPS (200-240VAC)
55949KX RT11kVA 6U Rack or Tower UPS (200-240VAC)
55948PX RT8kVA 6U 3:1 Phase Rack or Tower UPS (380-415VAC)
55949PX RT11kVA 6U 3:1 Phase Rack or Tower UPS (380-415VAC)

For more information, see the related Lenovo Press Product Guides in the UPS category:
https://lenovopress.com/servers/options/ups

Rack cabinets

The Flex System Enterprise Chassis is supported in the rack cabinets as listed in the following table. The suggested rack for Flex System is the 42U 1100 mm Enterprise V2 Deep Dynamic Rack, 93634PX.

Table 17. Rack cabinets

Part
number
Feature
code
Rack cabinet Supported
93634PX A1RC 42U 1100 mm Enterprise V2 Deep Dynamic Rack Recommended
93634EX A1RD 42U 1100 mm Dynamic Enterprise V2 Expansion Rack Recommended
93634CX A3GR PureFlex System 42U Rack Recommended
93634DX A3GS PureFlex System 42U Expansion Rack Recommended
93634AX A31F PureFlex System 42U Rack Recommended
93634BX A31G PureFlex System 42U Expansion Rack Recommended
201886X 2731 11U Office Enablement Kit Yes*
93072PX 6690 S2 25U Static Standard Rack Yes
93072RX 1042 S2 25U Dynamic Standard Rack Yes
93074RX 1043 S2 42U Standard Rack Yes
99564RX 5629 S2 42U Dynamic Standard Rack Yes
99564XX 5631 S2 42U Dynamic Standard Expansion Rack Yes
93084PX 5621 42U Enterprise Rack Yes
93084EX 5622 42U Enterprise Expansion Rack Yes
93604PX 7649 42U 1200 mm Deep Dynamic Rack Yes
93604EX 7650 42U 1200 mm Deep Dynamic Expansion Rack Yes
93614PX 7651 42U 1200 mm Deep Static Rack Yes
93614EX 7652 42U 1200 mm Deep Static Expansion Rack Yes
93624PX 7653 47U 1200 mm Deep Static Rack Yes
93624EX 7654 47U 1200 mm Deep Static Expansion Rack Yes
14102RX 1047 eServer™ Cluster 25U Rack Yes
14104RX 1048 Linux Cluster 42U Rack Yes
9306-900 None Netfinity® Rack No
9306-910 None Netfinity Rack No
9306-42P None Netfinity Enterprise Rack No
9306-42X None Netfinity Enterprise Rack Expansion Cabinet No
9306-200 None Netfinity NetBAY 22 No

* This Office Enablement kit is specifically designed for the BladeCenter S Chassis. The Flex System Enterprise Chassis can be installed in this kit with 1U of space remaining, however the noise generated by the chassis may not be acceptable for office use.

Lenovo Financial Services

Lenovo Financial Services reinforces Lenovo’s commitment to deliver pioneering products and services that are recognized for their quality, excellence, and trustworthiness. Lenovo Financial Services offers financing solutions and services that complement your technology solution anywhere in the world.

We are dedicated to delivering a positive finance experience for customers like you who want to maximize your purchase power by obtaining the technology you need today, protect against technology obsolescence, and preserve your capital for other uses.

We work with businesses, non-profit organizations, governments and educational institutions to finance their entire technology solution. We focus on making it easy to do business with us. Our highly experienced team of finance professionals operates in a work culture that emphasizes the importance of providing outstanding customer service. Our systems, processes and flexible policies support our goal of providing customers with a positive experience.

We finance your entire solution. Unlike others, we allow you to bundle everything you need from hardware and software to service contracts, installation costs, training fees, and sales tax. If you decide weeks or months later to add to your solution, we can consolidate everything into a single invoice.

Our Premier Client services provide large accounts with special handling services to ensure these complex transactions are serviced properly. As a premier client, you have a dedicated finance specialist who manages your account through its life, from first invoice through asset return or purchase. This specialist develops an in-depth understanding of your invoice and payment requirements. For you, this dedication provides a high-quality, easy, and positive financing experience.

For your region specific offers please ask your Lenovo sales representative or your technology provider about the use of Lenovo Financial Services. For more information, see the following Lenovo website:

https://www.lenovo.com/us/en/landingpage/lenovo-financial-services/

Related product families

Product families related to this document are the following:

Trademarks

Lenovo and the Lenovo logo are trademarks or registered trademarks of Lenovo in the United States, other countries, or both. A current list of Lenovo trademarks is available on the Web at https://www.lenovo.com/us/en/legal/copytrade/.

The following terms are trademarks of Lenovo in the United States, other countries, or both:
BladeCenter®
Flex System
Lenovo Services
Lenovo XClarity
Lenovo®
Netfinity®
RackSwitch
ServerProven®
System x®
ThinkSystem
TopSeller

The following terms are trademarks of other companies:

Linux® is a trademark of Linus Torvalds in the United States, other countries, or both.

Microsoft® and Windows® are trademarks of Microsoft Corporation in the United States, other countries, or both.

Other company, product, or service names may be trademarks or service marks of others.