Flex System Enterprise Chassis

Product Guide

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Abstract

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.

Changes in the May 5 update:
* Added support for Flex System X6 Compute Nodes, machine type 7196

Contents


Table of Contents


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?

Flex System is one of the key underlying technologies at the heart of Lenovo converged systems offerings, PureFlex and VSPEX. PureFlex System combines advanced Flex System hardware integrated into a solution that is simple to acquire and deploy. PureFlex is also available in a version optimized for Virtual Desktop Infrastructure. The VSPEX private cloud with Lenovo Flex System offers an easy on-ramp to cloud computing, with a rigorous validated EMC VSPEX built on Lenovo infrastructure, to ensure fast low risk deployments.

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, -48V DC and HVDC. 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, storage, or networking capability is as simple as adding additional nodes or modules. 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

Figure 2 shows the front of the Enterprise Chassis.

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

Figure 3 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

ComponentsSpecification
Machine type8721
FirmwareChassis with first generation Chassis Management Module (68Y7030): IBM-signed firmware
Chassis with Chassis Management Module 2 (00FJ669): Lenovo-signed firmware
Form factor10U rack-mounted unit.
Maximum number of compute nodes14 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 rackFour.
Nodes per 42U rack56 half-wide, or 28 full-wide.
ManagementChassis 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 architectureUp to eight lanes of I/O to an I/O adapter card, with each lane capable of up to 16 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 suppliesUp 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, 2100W AC, 2500W HVDC and 2500W -48V DC power supplies. All installed power supplies must be identical.
Fan modulesTen fan modules (eight 80 mm fan modules and two 40 mm fan modules); Four 80 mm and two 40 mm fan modules standard.
DimensionsHeight: 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 level7.5 bels (declared)
TemperatureOperating air temperature 5°C to 40°C
Electrical powerAC Input power: 200 - 240 V ac (nominal), 50 or 60 Hz
HVDC DC Input power: 240 - 380 V dc (nominal)
-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 consumption12,900 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

ModelFirmware
codebase
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-A1xIBM141x CMM10 / 4None2x 2500W241
8721-LRxIBM141x CMM10 / 4None2x 2100W241
8721-DCxIBM141x CMM10 / 4None2x 2500W
-48V DC
241
8721-ALxLenovo141x CMM20 / 4None2x 2500W241
8721-DLxLenovo141x CMM20 / 4None2x 2500W
-48V DC
241
Express models – Europe
8721-K1GIBM141x CMM10 / 4None2x 2500W241
TopSeller models – North America
8721-E1YIBM142x CMM12 / 42x SI4093†6x 2500W281
8721-E2YIBM142x CMM12 / 42x CN4093†6x 2500W281
8721-E3YLenovo142x CMM22 / 42x SI4093#6x 2500W281
8721-E4YLenovo142x CMM22 / 42x CN4093#6x 2500W281
* CMM1 = first generation Chassis Management Module (68Y7030), CMM2 = Chassis Management Module 2 (00FJ669)
** One 80mm fan module part number or feature code contains two fan modules (System x feature code A0UA or part number 43W9078)
† I/O modules are those with IBM-signed firmware (Flex System Fabric CN4093 10Gb Converged Scalable Switch, 00D5823 and Flex System Fabric SI4093 System Interconnect Module, 95Y3313)
# I/O modules are those with Lenovo-signed firmware (Flex System Fabric CN4093 10Gb Converged Scalable Switch, 00FM510 and Flex System Fabric SI4093 System Interconnect Module, 00FM518)

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

DescriptionMachine
type
Firmware
code base
Supported in chassis
8721 with CMM1
(IBM signed)
8721 with CMM2
(Lenovo signed)
Maximum
per chassis*
Lenovo x86 servers
Flex System x2207906IBM signedSupportedSupported14
Flex System x2227916IBM signedSupportedSupported14
Flex System x2407162Lenovo signedNoSupported14
Flex System x2408737IBM signedSupportedSupported14
Flex System x240 M59532Lenovo signedSupportedSupported14
Flex System x4407917IBM signedSupportedSupported7
Flex System x4407167Lenovo signedSupportedSupported7
Flex System x280 X67196Lenovo signedNoSupported7
Flex System x480 X67196Lenovo signedSupportedSupported7
Flex System x880 X67196Lenovo signedSupportedSupported7
Flex System x280 X67903IBM signedSupportedSupported7
Flex System x480 X67903IBM signedSupportedSupported7
Flex System x880 X67903IBM signedSupportedSupported7
Flex System Manager8731-A1xIBM signedSupportedSupported1**
IBM Power Systems servers
Flex System p24L1457IBM signedSupportedNo14
Flex System p2607895-22XIBM signedSupportedNo14
Flex System p2707954-24XIBM signedSupportedNo14
Flex System p4607895-42XIBM signedSupportedNo7
* 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 IBM® ServerProven® for the latest information about the supported servers:
http://ibm.com/servers/eserver/serverproven/compat/us/

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 available for the chassis.

Table 4. I/O modules and upgrades

DescriptionPart numberFirmware
code base
Supported in chassis
8721 with CMM
(IBM signed)
8721 with CMM2
(Lenovo signed)
Ethernet modules
EN4093R 10Gb Scalable Switch00FM514Lenovo*NoSupported
CN4093 10Gb Converged Scalable Switch00FM510Lenovo*NoSupported
SI4091 10Gb System Interconnect Module00FE327Lenovo*NoSupported
SI4093 System Interconnect Module00FM518Lenovo*NoSupported
EN2092 1Gb Ethernet Scalable Switch49Y4294IBM*SupportedSupported
EN4091 10Gb Ethernet Pass-thru88Y6043IBM*SupportedSupported
EN4093 10Gb Scalable Switch 49Y4270IBM*SupportedSupported
EN4093R 10Gb Scalable Switch95Y3309IBM*SupportedSupported
CN4093 10Gb Converged Scalable Switch00D5823IBM*SupportedSupported
SI4093 System Interconnect Module95Y3313IBM*SupportedSupported
Cisco Nexus B22 Fabric Extender94Y5350VendorSupportedSupported
EN4023 10Gb Scalable Switch94Y5212VendorSupportedSupported
EN6131 40Gb Ethernet Switch90Y9346VendorSupportedSupported
Fibre Channel switches
FC5022 16Gb SAN Scalable Switch88Y6374VendorSupportedSupported
FC5022 24-port 16Gb SAN Scalable Switch00Y3324VendorSupportedSupported
FC5022 24-port 16Gb ESB SAN Scalable Switch90Y9356VendorSupportedSupported
FC3171 8Gb SAN Switch69Y1930VendorSupportedSupported
FC3171 8Gb SAN Pass-thru69Y1934VendorSupportedSupported
InfiniBand switches
IB6131 InfiniBand Switch (QDR/FDR)90Y3450VendorSupportedSupported
* 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 Flex System x240 Compute Node) has two adapter slots, and each full-wide compute node (such as the Flex System x440 Compute Node) 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 although currently only two-port and four-port adapters are available.

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.

Table 5. Adapter to I/O bay correspondence

I/O adapter slot
in the server
Port on the adapterCorresponding I/O module bay
in the chassis
Slot 1Port 1Module bay 1
Port 2Module bay 2
Port 3 (for 4-port cards)*Module bay 1
Port 4 (for 4-port cards)*Module bay 2
Slot 2Port 1Module bay 3
Port 2Module bay 4
Port 3 (for 4-port cards)*Module bay 3
Port 4 (for 4-port cards)*Module bay 4
Slot 3
(full-wide compute nodes only)
Port 1Module bay 1
Port 2Module bay 2
Port 3 (for 4-port cards)*Module bay 1
Port 4 (for 4-port cards)*Module bay 2
Slot 4
(full-wide compute nodes only)
Port 1Module bay 3
Port 2Module bay 4
Port 3 (for 4-port cards)*Module bay 3
Port 4 (for 4-port cards)*Module bay 4
* To make use of all four ports of a four-port adapter, the switch must have 28 internal ports enabled, and two switches must be installed in the bays as indicated.

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*DescriptionStandard /
Maximum
68Y7030A0TM / A0UEFlex System Chassis Management Module1 / 2
00FJ669ASPT / ASQ8Flex 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

Flex System Manager

Flex System Manager (FSM) is a systems management solution that offers flexible integrated systems management across compute, storage, and networking resources in the Flex System infrastructure. It is designed to help you get the most out of your IT installation while automating repetitive tasks. It can significantly reduce the number of manual navigational steps for typical management tasks.

From simplified system setup procedures with wizards and built-in expertise to consolidated monitoring for all of your physical and virtual resources, FSM provides core management functionality along with automation so that you can focus your efforts on business innovation.

The Flex System Manager compute node provides configuration and management support locally or remotely, for up to 16 chassis, their devices, and the compute nodes. The following figure shows the Flex System Manager.

IBM Flex System Manager
Figure 9. Flex System Manager

For information about Flex System Manager, see the Lenovo Press Product Guide:
http://lenovopress.com/tips0862

Power supplies

A maximum of six power supplies can be installed in the Enterprise Chassis. Either 2500W or 2100W power supplies are available. Two 2500W power supplies are standard in model 8721-A1x. Two 2100W power supplies are standard in model LRx. Additional power supplies are orderable per the following table. All installed power supplies must be the same.

Table 7. Ordering part number and feature code

DescriptionPart numberFeature code
Flex System Enterprise Chassis 2500W Power Module43W9049A0UC
Flex System Enterprise Chassis 2100W Power Module47C7633A3JH
Flex System Enterprise Chassis HVDC 2500W Power Module00AM765EPA9
Flex System Enterprise Chassis -48V DC 2500W Power Module00FJ635A5VC

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
DescriptionPart numberFeature code
4.3m, 16A/208V, C19 to NEMA L6-20P (US) Line Cord40K97726275
2.5m, 16A/100-240V, C19 to IEC 320-C20 Rack Power Cable39Y79166252
2m, 16A/100-250V, C19 to IEC 320-C20 Rack Power CableNone6292
4.3m, US/CAN, NEMA L15-30P - (3P+Gnd) to 3X IEC 320 C1900D7192A2Y3
4.3m, EMEA/AP, IEC 309 32A (3P+N+Gnd) to 3X IEC 320 C1900D7193A2Y4
4.3m, A/NZ, (PDL/Clipsal) 32A (3P+N+Gnd) to 3X IEC 320 C1900D7194A2Y5

The 2500W HVDC power supply operates at either 240V DC or 380V DC (192V - 400V input range). The power supply has a Rong-Feng RF-203P connector. The power supply includes a 2.5m DC power cord (SBB part number 00Y9100).

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 10. 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.

The 2100W power supplies are 2100 Watts output power rated at 200-240VAC. Similar to the 2500W unit, this power supply also supports oversubscription, the 2100W unit can run up to 2895W for short duration. The 2100W supplies have two independently powered dual 40mm cooling fans, that pick up power from the midplane included within the power supply assembly.

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 2500 W HVDC power supply operates at 240 V DC or 380 V DC. The 2500 W -48 V DC power supply operates over a typical telecommunications range of -60 V to -48 V DC.

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. Power monitoring with the 2100W power supplies is currently not supported.

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

Power supply bay numbering
Figure 11. 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).

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:
http://ibm.com/systems/bladecenter/resources/powerconfig.html

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
Flex System x220
50 W1414141414141414
60 W1414141414141414
70 W1414141414141414
80 W1414141414141414
95 W1414141414141414
Flex System x222
50 W1414131414141414
60 W1414121214141414
70 W1414111214141414
80 W1414101114141314
95 W141391014141213
Flex System x240
60 W1414111114141414
70 W1414111114141414
80 W1414111114141414
95 W1414111114141414
115 W1414111114141414
130 W1414111114141314
135 W1414111114141314
Flex System x240 M5
52 W1414111114141414
55 W1414111114141414
65 W1414111114141414
75 W1414111114141414
85 W1414111114141414
90 W1414111114141414
105 W1414111114141314
120 W1414111114141314
135 W1413111114141213
145 W1413111114141213
Flex System x440
95 W77667777
115 W77557777
130 W77557767
Flex System x880 X6, x480 X6 and x280 X6
105 W77557777
130 W77557777
155 W77557777
Flex System V7000 Storage Node
N/A33333333
Flex System p24L
All141291014141213
Flex System p260
All141291014141213
Flex System p270
All14129914141212
Flex System p460
All76457766

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 12. 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

DescriptionPart numberFeature code
Flex System Enterprise Chassis 80mm Fan Module43W9078
(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 13. 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
Description80 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 Flex System Enterprise Chassis has a three-year on-site warranty with 9x5 next-business-day terms. Lenovo offers the service upgrades through 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; that is, each country might have its own service types, service levels, response times, and terms and conditions. Not all covered types of warranty service upgrades might be available in a particular country or area. For more information about Lenovo warranty service upgrade offerings that are available in your country, visit the Lenovo Services website:

https://www-304.ibm.com/sales/gss/download/spst/servicepac/extProductSelectorWWW.do

The following table explains warranty service definitions in more detail.

Table 12. Warranty service definitions

TermDescription
On-site repairA service technician will come to the server's location for equipment repair.
24x7x2 hourA 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.
24x7x4 hourA service technician is scheduled to arrive at the client’s location within eight hours after remote problem determination is completed. Lenovo provides service around the clock, every day, including Lenovo holidays.
9x5x4 hourA 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 a.m. - 5:00 p.m. in the client's local time zone, Monday - Friday, excluding Lenovo holidays.
9x5 next business dayA service technician is scheduled to arrive at the client’s location on the business day after Lenovo receives your call, following remote problem determination. Lenovo provides service 8:00 a.m. - 5:00 p.m. in the client's local time zone, Monday - Friday, excluding Lenovo holidays. Calls received after 4:00pm local time require an extra business day for service dispatch. Next business day service is not guaranteed.

The following types of Lenovo warranty service upgrades are available:
  • Warranty and maintenance service upgrades:
    • Three, four, or five years of 9x5 or 24x7 service coverage
    • Onsite repair from next business day to 8 or 4 hours
    • One or two years of warranty extension
  • Priority technical support

    Lenovo’s Priority Support Offering enhances our award-winning call center support to provide top priority queue assignment to specialized Lenovo technicians. Priority support accelerates call center troubleshooting to get your problems resolved quickly, and includes other value added support for Lenovo provided software tools. Priority support can be purchased stand-alone to match the base warranty of your system or in convenient bundles with our same-day response services.

  • Keep Your Drive Multi-Drive

    Lenovo’s Keep Your Drive Multi-Drive 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. Keep Your Drive Multi-Drive can be purchased stand-alone to match the base warranty of your system or in convenient bundles with our same-day response services.


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)

External disk storage systems

The following System x options are available for attaching external storage systems to Enterprise Chassis:

Table 13. External disk storage systems

Part numberDescription
2071CU2IBM Storwize V3500 LFF Dual Control Enclosure
2071CU3IBM Storwize V3500 SFF Dual Control Enclosure
6099L2CIBM Storwize V3700 3.5-inch Storage Controller Unit
6099S2CIBM Storwize V3700 2.5-inch Storage Controller Unit
6099T2CIBM Storwize V3700 2.5-inch DC Storage Controller Unit
6194L2CIBM Storwize V5000 LFF Control Enclosure
6194LEUIBM Storwize V5000 LFF Expansion Enclosure
6194S2CIBM Storwize V5000 SFF Control Enclosure
6194SEUIBM Storwize V5000 SFF Expansion Enclosure
6195SC5IBM Storwize V7000 2.5-inch Storage Controller Unit
 6195LEFIBM Storwize V7000 3.5-inch Storage Expansion Unit
 6195SEFIBM Storwize V7000 2.5-inch Storage Expansion Unit

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 available top-of-rack switches.

Table 14. Top-of-rack switches

Part numberDescription
1 Gb top-of-rack switches
7159BAXLenovo RackSwitch G7028 (Rear to Front)
7159CAXLenovo RackSwitch G7052 (Rear to Front)
715952FLenovo RackSwitch G8052 (Front to Rear)
7159G52Lenovo RackSwitch G8052 (Rear to Front)
10 Gb top-of-rack switches
7159BF7Lenovo RackSwitch G8124E (Front to Rear)
7159BR6Lenovo RackSwitch G8124E (Rear to Front)
715964FLenovo RackSwitch G8264 (Front to Rear)
7159G64Lenovo RackSwitch G8264 (Rear to Front)
7159DFXLenovo RackSwitch G8264CS (Front to Rear)
7159DRXLenovo RackSwitch G8264CS (Rear to Front)
7159CFVLenovo RackSwitch G8272 (Front to Rear)
7159CRWLenovo RackSwitch G8272 (Rear to Front)
7159GR5Lenovo RackSwitch G8296 (Front to Rear)
7159GR6Lenovo RackSwitch G8296 (Rear to Front)
40 Gb top-of-rack switches
7159BFXLenovo RackSwitch G8332 (Front to Rear)
7159BRXLenovo RackSwitch G8332 (Rear to Front)

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: http://ibm.com/systems/bladecenter/resources/powerconfig.html

Table 15. Power distribution units

Part numberDescription
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
46M41671U 9 C19/3 C13 Switched and Monitored 30A 3 Phase PDU
46M41340U 12 C19/12 C13 Switched and Monitored 50A 3 Phase PDU
46M41400U 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
39Y8934DPI 32amp/250V Front-end PDU with IEC 309 2P+Gnd connector
39Y893830amp/125V Front-end PDU with NEMA L5-30P connector
39Y893930amp/250V Front-end PDU with NEMA L6-30P connector
39Y894060amp/250V Front-end PDU with IEC 309 60A 2P+N+Gnd connector
DC PDUs
44T09661U 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 numberDescription
55946KXRT6kVA 3U Rack or Tower UPS (200-240VAC)
55948KXRT8kVA 6U Rack or Tower UPS (200-240VAC)
55949KXRT11kVA 6U Rack or Tower UPS (200-240VAC)
55948PXRT8kVA 6U 3:1 Phase Rack or Tower UPS (380-415VAC)
55949PXRT11kVA 6U 3:1 Phase Rack or Tower UPS (380-415VAC)
21303RXUninterruptible Power Supply 7500XHV
21304RX Uninterruptible Power Supply 10000XHV
53956AX 6000VA LCD 4U Rack Uninterruptible Power Supply (200 V/208 V)
53956KX 6000VA LCD 4U Rack Uninterruptible Power Supply (230 V)
53959KX11000VA LCD 5U Rack Uninterruptible Power Supply (230V)

For more information, see the related Lenovo Press Product Guides in the Power infrastructure category:
http://lenovopress.com/systemx/power

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 cabinetSupported
93634PXA1RC42U 1100 mm Enterprise V2 Deep Dynamic RackRecommended
93634EXA1RD42U 1100 mm Dynamic Enterprise V2 Expansion RackRecommended
93634CXA3GRPureFlex System 42U RackRecommended
93634DXA3GSPureFlex System 42U Expansion RackRecommended
93634AXA31FPureFlex System 42U RackRecommended
93634BXA31GPureFlex System 42U Expansion RackRecommended
201886X273111U Office Enablement KitYes*
93072PX6690S2 25U Static Standard RackYes
93072RX1042S2 25U Dynamic Standard RackYes
93074RX1043S2 42U Standard RackYes
99564RX5629S2 42U Dynamic Standard RackYes
99564XX5631S2 42U Dynamic Standard Expansion RackYes
93084PX562142U Enterprise RackYes
93084EX562242U Enterprise Expansion RackYes
93604PX764942U 1200 mm Deep Dynamic RackYes
93604EX765042U 1200 mm Deep Dynamic Expansion RackYes
93614PX765142U 1200 mm Deep Static RackYes
93614EX765242U 1200 mm Deep Static Expansion RackYes
93624PX765347U 1200 mm Deep Static RackYes
93624EX765447U 1200 mm Deep Static Expansion RackYes
14102RX1047eServer™ Cluster 25U RackYes
14104RX1048Linux Cluster 42U RackYes
9306-900NoneNetfinity® RackNo
9306-910NoneNetfinity RackNo
9306-42PNoneNetfinity Enterprise RackNo
9306-42XNoneNetfinity Enterprise Rack Expansion CabinetNo
9306-200NoneNetfinity NetBAY 22No
* 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.

Rack options

The server supports the rack console switches and monitor kits listed in the following table.

Table 18. Rack options

Part numberFeature codeDescription
Monitor kits and keyboard trays
17238BX1723HC1 fc A3EK1U 18.5" Standard Console
17238EX1723HC1 fc A3EL1U 18.5" Enhanced Media Console
172317X1723HC1 fc 00511U 17in Flat Panel Console Kit
172319X1723HC1 fc 00521U 19in Flat Panel Console Kit
Console switches
3858D3X3858HC1 fc A4X1Avocent Universal Management Gateway 6000
1754D2X1754HC2 fc 6695Global 4x2x32 Console Manager (GCM32)
1754D1X1754HC1 fc 6694Global 2x2x16 Console Manager (GCM16)
1754A2X1754HC4 fc 0726Local 2x16 Console Manager (LCM16)
1754A1X1754HC3 fc 0725Local 1x8 Console Manager (LCM8)
Console cables
00AK142A4X4UM KVM Module VGA+SD Dual RJ45
43V61473757Single Cable USB Conversion Option (UCO)
39M28953756USB Conversion Option (4 Pack UCO)
39M28973754Long KVM Conversion Option (4 Pack Long KCO)
46M53835341Virtual Media Conversion Option Gen2 (VCO2)
46M53825340Serial Conversion Option (SCO)

For more information, see the related Lenovo Press Product Guides in the Power infrastructure category:
http://lenovopress.com/systemx/rack

Related publications and links

For more information, see the following resources:


Special Notices

This material has not been submitted to any formal IBM test and is published AS IS. It has not been the subject of rigorous review. IBM assumes no responsibility for its accuracy or completeness. The use of this information or the implementation of any of these techniques is a client responsibility and depends upon the client's ability to evaluate and integrate them into the client's operational environment.

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Publish Date
11 April 2012

Last Update
05 May 2015


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