Dell PowerEdge R940 Technical Manual
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Dell PowerEdge R940 Technical Manual

Latest 4-socket, 3u monolithic rack server designed for complex workloads using highly scalable memory and network options
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TEChniCaL GUiDE
PowerEdge R940
Latest 4-socket, 3U monolithic rack server
designed for complex workloads using
highly scalable memory and network op-
tions.
The following documentation is designed as both an instructional aid and
online reference material for the Dell EMC PowerEdge R940 rack
server. The material introduces new technologies and features specific to
the PowerEdge R940 in an effort to better prepare technicians to provide
outstanding support to our customers.
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Summary of Contents for Dell PowerEdge R940

  • Page 1 The following documentation is designed as both an instructional aid and online reference material for the Dell EMC PowerEdge R940 rack server. The material introduces new technologies and features specific to the PowerEdge R940 in an effort to better prepare technicians to provide outstanding support to our customers.
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. Copyright © 2017 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners.

  • Page 3: Table Of Contents

    Contents 1 System overview ............................6 Introduction..................................6 New Technologies................................6 2 System features ............................8 Specifications..................................8 3 Chassis views and features ..........................10 Chassis view and features............................... 10 Front panel view and features...........................10 Back view features..............................10 2.5-in x8 hard drive passive backplane........................11 2.5-in x24 hard drive active backplane........................
  • Page 4 PCIe expansion cards..............................22 PCIe slot mapping..............................22 8 Power, thermal, and acoustics ........................24 Power, thermal and acoustics............................24 Power consumption and energy efficiency......................24 Power supply units................................25 Thermal and acoustics..............................26 Thermal design................................. 26 Acoustical design................................26 9 Rack Rails..............................28 Cable Management Arm (CMA) and Strain Relief Bar (SRB)..................28 Rack Installation................................
  • Page 5 ProSupport Plus (for business-critical servers)......................49 ProSupport Enterprise Suite............................49 ProSupport..................................49 ProSupport Flex for Data Center...........................50 Additional professional services............................. 50 Dell Education Services..............................50 Dell Global Infrastructure Consulting Services......................50 Dell managed services..............................51 Contents...

  • Page 6: System Overview

    Introduction The Dell EMC PowerEdge R940 is a latest 4-socket, 3U monolithic rack server designed to run complex workloads using highly scalable memory, I/O, and network options. The system features the Intel Xeon Processor Scalable family, with up to 48 DDR4 DIMMs, up to 13 PCI Express (PCIe) 3.0 enabled expansion slots, and a choice of embedded NIC technologies.
  • Page 7 Technology Detailed Description variety of Mobile OS’s with higher data throughput, the Quick Sync 2.0 version replaces NFC technology. System overview...

  • Page 8: System Features

    System features Specifications Table 2. Technical specifications Feature Specification Form factor 3U rack Processors Intel Xeon Processor Scalable family Processor sockets 2 socket or 4 sockets Internal interconnect Intel Ultra Path Interconnect (UPI) up to 10.4 GT/s Chipset Intel C620 Memory •...
  • Page 9 Novell SuSE Linux Enterprise Server 11 (with PLDP) SP4x86_64 • Novell SuSE Linux Enterprise Server 12 SP2 x86_64 • MS, Windows Server 2016 • MS, Windows Server 2012 R2 For more information on the specific versions and additions, visit Dell.com/OSsupport. System features...

  • Page 10: Chassis Views And Features

    Video connector USB management port/iDRAC Direct Information tag For more information on the HDD numbering, see the Dell PowerEdge R940 Hardware Owner's Manual on www.dell.com/support Back view features The following components are located on the back of the PowerEdge R940:...

  • Page 11: 2.5-In X8 Hard Drive Passive Backplane

    Figure 2. PowerEdge R940 back view Half-height PCIe expansion card slot Full-height PCIe expansion slots Ethernet connector (4) Half-height PCIe expansion card slot Power supply unit (2) Video port Serial port iDRAC9 Enterprise port USB port System identification button Status indicator cable port 2.5-in x8 hard drive passive backplane...

  • Page 12: 2.5-In X24 Hard Drive Active Backplane

    PCIe connector (J_BP_PWR_A) Signal connector (J_BP_SIG) PCIe connector (J_BP_PWR_B) Control panels, LCD and LED For more information about the PowerEdge R940 control panels, see the PowerEdge R940's Owner’s Manual at Dell.com/Support/ Manuals. Quick Resource Locator (QRL) The Embedded Service Tag (EST) this generation will contain the Service Tag number and the iDRAC password. Embedding the Service Tag and iDRAC password in the QRL allows the mobile application to display information on their configuration, warranty status, specific iDRAC password and service level agreement.

  • Page 13: Security Features

    Figure 5. Service tag QRL label The QRL EST label has a service tag embedded into the QR code that the QRL website uses to look up system info in the service tag data base. From that database the QRL website pulls warranty info and factory configuration details. After viewing this, the customer can move on to the product page.

  • Page 14: Processor

    Processor Processor Features The Intel Xeon Skylake Scalable family is the next generation core architecture with improved Instructions per Cycle (IPC) and other architectural improvements. The Intel Xeon Skylake Scalable family features are as follows: • Virtual address space of 48 bits and a physical address space of 46 bits. •...

  • Page 15: Processor Installation

    768 GB 8176, 8170, and 8160 6134, and 6142 Processor installation For processor installation instructions, see the Dell PowerEdge R940 Hardware Owner's Manual Chipset The Intel C620 PCH provides extensive I/O support. Functions and capabilities include: • ACPI Power Management Logic Support, Revision 4.0a •...
  • Page 16 • JTAG Boundary Scan support • Intel QuickAssist Technology • Intel Trace Hub for debug Processor...

  • Page 17: Supported Memory

    Supported Memory The PowerEdge R940 supports up to 48 DIMM slots, with up to 6 TB of memory and speeds up to 2666 MT/s. Supported DIMMs are registered (RDIMMs) and load reduced (LRDIMMs) DIMMs which uses a buffer to reduce memory loading and provide greater density allowing maximum memory capacity.

  • Page 18: Memory Ras Features

    Memory RAS features Reliability, Availability, and Serviceability (RAS) features help keep the system online and operational without significant impact to performance, and decreases data loss and crashing issues. RAS helps in rapid and accurate diagnosis of system faults. Table 8. Supported RAS features Feature Description Dense configuration optimized profile...

  • Page 19: Storage

    RAID Controllers The PowerEdge R940 supports full height PERC adapter form factor only in slot 1 (for primary) and slot 6 (for secondary), and does not support mini PERC form factors. The PERC controller offerings for R940 will be a heavy leverage of the 13G PERC family. New to the...

  • Page 20: Internal Persistent Storage

    + IDSDM The IDSDM with vflash module has a dedicated slot at the back of the system chassis. This is a Dell-proprietary PCIe x1 slot that uses a USB 3.0 interface to host. In the system, the IDSDM and vflash card size changes from SD to microSD and the supported capacity for IDSDM microSD cards are 16 GB, 32 GB, or 64 GB, while for vflash the capacity is 16 GB only.

  • Page 21: External Storage

    • The user does not to trade off the standard hot-plug hard drive slot for OS install. BOSS is a PCIe card in the front to support up to two 80mm or 110mm M.2 SATA or PCIe x1 devices. NOTE: The portfolio solution using a PCIe carrier card is not supported on R940.

  • Page 22: Networking And Pcie

    Networking and PCIe The PowerEdge R940 offer balanced, scalable I/O capabilities including integrated PCIe 3.0 expansion slots. Dell network adapters and daughtercards let you choose the right network fabric without using up valuable PCI slots. Pick the speed, technology, vendor and other options such as switching independent partitioning lets you share and manage bandwidth on 10 Gbe connections.
  • Page 23 Physical location Slot Form factor Controlling Slot electrical bandwidth/ Power Length number Physical connector Riser 2 on PEM for Full height CPU4 PCIe GEN3 x16 (x16 connector) 75 W 10.5" (~3/4 length) 4 socket configuration Riser 2 on PEM for Full height CPU4 PCIe GEN3 x16 (x16 connector) 25 W...

  • Page 24: Power, Thermal And Acoustics

    Better performance under a power cap Power capping Use Dell’s systems management to set the power cap limit for your systems to limit the output of a PSU and reduce system power consumption. Dell is the first hardware vendor to leverage Intel Node Manager for circuit- breaker fast capping.

  • Page 25: Power Supply Units

    The following power supply unit options are available for the R940: • 1100W, 1100W DC • 1600W • 2000W • 2400W (UI) The PowerEdge R940 supports up to 2 AC or DC power supplies with 1+1 redundancy, auto sensing, and auto-switching capability. Power, thermal, and acoustics...

  • Page 26: Thermal And Acoustics

    (see Environmental Specifications) . The benefits to you are lower fan power consumption (lower server system power and data center power consumption) and greater acoustical versatility. The PowerEdge R940 is quiet enough to be used in an office environment in typical and minimum configurations.
  • Page 27 • iDRAC9 BIOS settings: Performance Per Watt (DAPC or OS) may be quieter than Performance or Dense Configuration (iDRAC Settings > Thermal > Max. Exhaust Temperature or Fan speed offset). • The quantity and type of PCIe cards installed: This affects overall system acoustics. Installation of more than two PCIe cards results in an increase in overall system acoustics.

  • Page 28: Rack Rails

    Rack Rails The rail offerings consist of sliding rails only. The sliding rails allow the system to be fully extended out of the rack for service. There is also an optional Cable Management Arm (CMA) and optional Strain Relief Bar (SRB). Figure 7.

  • Page 29: Rack Installation

    detach the cables. The SRB is a bar that supports large cable loads and also allows the server to extend out of the rack without having to detach the cables if cable service loops are created. Some key features of the CMA include: •...

  • Page 30: Installing 14G Systems In Sliding Rails

    NOTE: The 2U system requires two people for installation due to its heavier weight. Installing 14G Systems in Sliding Rails To install the 14G system in sliding rails: Pull the inner slide rails out of the rack until they lock into place. •...

  • Page 31: Supported Operating System

    Supported operating system Table 16. Supported operating system Operating system PQM part number RedHat Enterprise Linux 6.9 Server x86_64 VM93R RedHat Enterprise Linux 7.3 Server x86_64 V9RKV Novell SuSE Linux Enterprise Server 11 (with PLDP) SP4 x86_64 YN80M Novell SuSE Linux Enterprise Server 12 SP2 x86_64 CM3M5 MS, Windows Server 2016 XW2CG...

  • Page 32: Openmanage Systems Management

    OpenManage systems management The Dell OpenManage systems management portfolio includes powerful hardware and software management tools and consoles. OpenManage simplifies the lifecycle of deploying, updating, monitoring and maintaining your Dell PowerEdge servers. Topics: • iDRAC Lifecycle controller • Agent-free management •...
  • Page 33 Features iDRAC8 iDRAC9 iDRAC8 iDRAC9 iDRAC8 iDRAC9 iDRAC8 iDRAC9 Basic Basic Express Express Express for Express for Enterprise Enterprise Blades Blades SMASH-CLP—SSH-only Telnet Serial redirection WSMAN Network Time Protocol Connectivity Shared NIC Dedicated NIC VLAN tagging IPv4 IPv6 DHCP (new default; no static IP) DHCP with Zero Touch Dynamic DNS...
  • Page 34 Features iDRAC8 iDRAC9 iDRAC8 iDRAC9 iDRAC8 iDRAC9 iDRAC8 iDRAC9 Basic Basic Express Express Express for Express for Enterprise Enterprise Blades Blades Lock down mode Unique iDRAC default password Customizable Security Policy Banner-login page Quick Sync 2.0-optional auth for read operations Quick Sync 2.0-add mobile device number to LCL Remote Presence...
  • Page 35 Features iDRAC8 iDRAC9 iDRAC8 iDRAC9 iDRAC8 iDRAC9 iDRAC8 iDRAC9 Basic Basic Express Express Express for Express for Enterprise Enterprise Blades Blades Health Monitoring Full agent-free monitoring Predictive failure monitoring SNMPv1, v2 and v3—traps and gets Email alerting Configurable thresholds Fan monitoring Power Supply monitoring Memory monitoring CPU monitoring...
  • Page 36 Features iDRAC8 iDRAC9 iDRAC8 iDRAC9 iDRAC8 iDRAC9 iDRAC8 iDRAC9 Basic Basic Express Express Express for Express for Enterprise Enterprise Blades Blades Full configuration inventory Inventory export Remote configuration Zerotouch configuration System Retire/Repurpose Server Configuration Profile in GUI Diagnostics, Service and Logging Embedded diagnostic tools Part Replacement Server Configuration Backup No...

  • Page 37: Agent-Free Management

    The central console in a systems management solution is often referred to as the one-to-many console. The central console provides a rapid view and insight into the overall health of all systems in the IT environment. The Dell EMC systems management portfolio includes several powerful consoles, depending upon your needs, including the following: •...

  • Page 38: Openmanage Systems Management Tools, Utilities And Protocols

    Dell EMC OpenManage Deployment Toolkit: The Dell EMC OpenManage Deployment Toolkit (DTK) is a CLI-based tool that includes a set of utilities for configuring and deploying Dell PowerEdge systems, and can be used to build scripted, unattended OS installations to deploy large numbers of servers in a reliable fashion.

  • Page 39: Server Management Operations

    Server management operations OpenManage systems management is centered on automating the server management lifecycle — deploy, update, monitor and maintain. To manage an infrastructure properly and efficiently, you must perform all of these functions easily and quickly. iDRAC9 with Lifecycle Controller technology provides you with these intelligent capabilities embedded within the server infrastructure.
  • Page 40 • Server Pro Management Pack and Lifecycle Controller Integration (DLCI) For additional detailed information on Dell’s systems management portfolio, visit Dell.com/OpenManage. OpenManage systems management...

  • Page 41: Appendix A. Additional Specifications

    Appendix A. Additional specifications Chassis dimensions The following image shows the dimensions of the PowerEdge R940 chassis: Figure 9. PowerEdge R940 chassis dimension • Xa: 482.0 mm • Xb: 434.0 mm • Y: 130.3 mm • Za (with bezel): 35.84 mm •...

  • Page 42: Particulate And Gaseous Contamination Specifications

    Table 21. Relative humidity specifications Relative humidity Specifications Storage 5% to 95% RH with 33°C (91°F) maximum dew point. Atmosphere must be non-condensing at all times. Operating 10% to 80% relative humidity with 26°C (78.8°F) maximum dew point. Table 22. Maximum vibration specifications Maximum vibration Specifications Operating...

  • Page 43: Standard Operating Temperature

    Table 26. Particulate contamination specifications Particulate contamination Specifications Air filtration Data center air filtration as defined by ISO Class 8 per ISO 14644-1 with a 95% upper confidence limit. NOTE: This condition applies to data center environments only. Air filtration requirements do not apply to IT equipment designed to be used outside a data center, in environments such as an office or factory floor.

  • Page 44: Expanded Operating Temperature

    Expanded operating temperature Table 29. Expanded operating temperature specifications Expanded operating temperature Specifications < 10% of annual operating hours 5°C to 40°C at 5% to 85% RH with 29°C dew point. NOTE: Outside the standard operating temperature (10°C to 35°C), the system can operate continuously in temperatures as low as 5°C and as high as 40°C.

  • Page 45: Usb Peripherals

    USB peripherals USB peripherals are supported through the front and back USB ports on the R940. The front ports, back and internal ports are USB 3.0 compliant. Appendix A. Additional specifications...

  • Page 46: Appendix B. Standards Compliance

    Appendix B. Standards compliance Table 31. Industry standard documents Standard URL for information and specifications ACPI Advance Configuration and Power Interface Specification, acpi.info v2.0c Ethernet IEEE 802.3-2005 standards.ieee.org/getieee802/802.3.html HDG Hardware Design Guide Version 3.0 for Microsoft Windows microsoft.com/whdc/system/platform/pcdesign/desguide/ Server serverdg.mspx IPMI Intelligent Platform Management Interface, v2.0 intel.com/design/servers/ipmi DDR4 Memory DDR4 SDRAM Specification...

  • Page 47: Appendix C Additional Resources

    Dell contact information. Energy Smart Solution Advisor The Dell online ESSA enables easier and more meaningful Dell.com/calc (ESSA) estimates to help you determine the most efficient configuration possible.

  • Page 48: Appendix D. Support And Deployment Services

    Remote Consulting Services When you are in the final stages of your PowerEdge server implementation, you can rely on Dell Remote Consulting and our certified technical experts to help you optimize your configuration with best practices for your software, virtualization, server, storage, networking, and systems management.

  • Page 49: Prosupport Plus (For Business-Critical Servers)

    ProSupport Enterprise Suite With Dell EMC ProSupport Services, we can help you keep your operation running smoothly, so you can focus on running your business. We will help you maintain peak performance and availability of your most essential workloads. Dell EMC ProSupport is a suite of support services that enable you to build the solution that is right for your organization.

  • Page 50: Prosupport Flex For Data Center

    Dell Education Services offers the PowerEdge server training courses designed to help you achieve more with your hardware investment. The curriculum is designed in conjunction with the server development team, as well as Dell’s technical support team, to ensure that the training delivers the information and practical, hands-on skills you and your team need to confidently manage and maintain your Dell server solution.

  • Page 51: Dell Managed Services

    Dell managed services Dell Managed Services are a modular set of lifecycle services designed to help you automate and centrally configure, deploy, and manage your day-to-day data center operations. These services extend your existing on-premise IT infrastructure with off-premise cloud services designed to better address challenges with mobility, highly distributed organizations, security, compliance, business continuity, and disaster preparedness.

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