Page 1 ThinkSystem SR950 Setup Guide Machine Types: 7X12, 7X11, and 7X13...
Page 2 This equipment is not suitable for use in locations where children are likely to be present. In addition, be sure that you are familiar with the terms and conditions of the Lenovo warranty for your server, which can be found at: http://datacentersupport.lenovo.com/warrantylookup...
Page 3: Table Of Contents
Server package contents ... . 1 Set the network connection for the Lenovo XClarity Controller ....141 Features.
Page 4 Riser replacement ... . 236 Index ....259 Storage interposer replacement..248 ThinkSystem SR950 Setup Guide...
Page 5: Chapter 1. Introduction
Chapter 1. Introduction The Lenovo ThinkSystem SR950 server is a high performance 4U rack server that supports up to eight Intel Xeon processors. It is an enterprise-class server designed for customers requiring four or more processors, large amounts of memory, and numerous I/O connections.
Page 6 Some of the features that are unique to the Lenovo XClarity Controller are enhanced performance, higher- resolution remote video, and expanded security options. For additional information about the Lenovo XClarity Controller, see: http://sysmgt.lenovofiles.com/help/topic/com.lenovo.systems.management.xcc.doc/product_page.html • UEFI-compliant server firmware Lenovo ThinkSystem firmware is Unified Extensible Firmware Interface (UEFI) 2.5 compliant. UEFI replaces BIOS and defines a standard interface between the operating system, platform firmware, and external devices.
Page 7: Specifications
The server provides a QR code on each system board that you can scan using a QR code reader and scanner with a mobile device to get quick access to the Lenovo Service Information website. The Lenovo Service Information website provides additional information for parts installation, replacement videos, and error codes for server support.
Page 8 For a list of supported processors, see http://www.lenovo.com/us/en/serverproven/ and the “Processor Options” section of the Lenovo ThinkSystem SR950 Product Guide at http://lenovopress.com/LP0647 Note: If 82xx processors are installed, 60 mm x 38mm, 19K internal hot-swap fans (01PG490) must also be installed to meet CPU cooling requirements at 35°C. If 16K...
Page 9 Table 1. Server Specifications (continued) Specification Description Expansion slots Up to seventeen expansion slots (dependent on server configuration): • Slot 1 - 4: PCI Express 3.0 for PCIe riser-card with the following slots available depending on the riser card installed: 1.
Page 10 – DB-15 VGA port – DB-9 serial port – RJ-45 system-management network port. This connector is dedicated for Lenovo XClarity Controller functions and runs at 1 gigabit (Gb) speed. – USB 3.0 ports (two) The following RAID options are available for this server:...
Page 11 Table 1. Server Specifications (continued) Specification Description Fans Up to twelve (60 mm x 38 mm) internal hot-swap system fans (dependent on server configuration) • The six upper fans are not installed for the four-processor-limited server configuration. • Only three upper fans are installed for the storage-rich configuration. Two types of fans are supported: •...
Page 12: Pcie Slot-To-Processor Mapping
Particulate contamination • ASHRAE compliance information (see the “Operating Environment” section of Lenovo ThinkSystem SR950 Product Guide at http://lenovopress.com/LP0647 specific ASHRAE compliance levels for each server configuration): – The server is designed for thermal compliance in ASHRAE A4 ambient environments. Certain processor and adapter configurations will limit product environmental support to ASHRAE A2 ambient conditions.
Page 13: Configurations
• 5 (6 x16) 14, 15, 16 Configurations The Lenovo ThinkSystem SR950 is available in several configurations. Four-socket performance These configurations meet the expectations of high-performance and low costs, while support up to 12 drives and 15 rear PCIe slots.
Page 14 Table 5. Location of the three processors and 36 supported memory module slots (viewed from the front) Upper tray filler (Not populated) CPU 4 and DIMM 37-48 CPU 1 and DIMM 1-12 CPU 2 and DIMM 13-24 ThinkSystem SR950 Setup Guide...
Page 15 Table 6. Location of ten supported PCIe slots (viewed from the rear) PCIe 1 (P4) PCIe 2 (P4) PCIe 3 (P4) PCIe 4 (P4) PCIe 5 PCIe 6 PCIe 7 PCIe 8 PCIe 9 PCIe (ML2) (LOM) This slot is blank if a 2 x16 riser is installed. Chapter 1 Introduction...
Page 16: Four-Socket Performance / Storage Rich
• “Four-socket performance / storage rich, four processors” on page 16 Notes: • 5100 series processors are only supported in four-processor configuration in this category. This slot is blank if a 2 x16 riser is installed. ThinkSystem SR950 Setup Guide...
Page 17 • These configuration require the upper storage tray, and could be upgraded to eight-socket ones, but it requires the 4S-to-8S Upgrade Option kit, additional components, and Lenovo hardware installation. Consider “Four-socket upgradable” on page 16 or “Four-socket upgradable / storage rich” on page 18 for an easier potential upgrade in the future.
Page 18 (Not populated) CPU 1 and DIMM 1-12 CPU 2 and DIMM 13-24 Table 10. Location of the five supported PCIe slots (viewed from the rear) PCIe 5 PCIe 6 PCIe 7 PCIe 8 PCIe 9 (ML2) (LOM) ThinkSystem SR950 Setup Guide...
Page 19 Four-socket performance / storage rich, three processors This configuration comes with three processors, requires at least two 1100/1600-watt PSUs, and supports up to: • 36 memory modules. • nine rear PCIe slots. This configuration comes with three processors, requires nine fans, and supports up to: See the following tables for the location of the supported components.
Page 20: Four-Socket Upgradable
• When four processors are installed, they must be configured in a ring topology. • These configurations allow a simple upgrade to 8-socket ones. See “Eight-socket storage rich” on page 19 for details about 8-socket configurations. This slot is blank if a 2 x16 riser is installed. ThinkSystem SR950 Setup Guide...
Page 21 Four-socket upgradable, two processors This configuration comes with two processors, requires at least one 1100/1600-watt PSU, and supports up • 24 memory modules. • six rear PCIe slots. See the following tables for the location of the supported components. Table 15. Location of the two processors and 24 supported memory module slots (viewed from the front) Upper tray filler (Not populated) (Not populated)
Page 22: Four-Socket Upgradable / Storage Rich
Table 20. Location of the ten supported PCIe slots (viewed from the rear) PCIe 3 (P6) PCIe 12 PCIe 4 (P6) PCIe 13 PCIe 5 PCIe 6 PCIe 7 PCIe 8 PCIe 9 PCIe (ML2) (LOM) ThinkSystem SR950 Setup Guide...
Page 23: Eight-Socket Storage Rich
Eight-socket storage rich These configurations support up to eight processors, 24 drives and 17 rear PCIe slots. The eight-socket upgradable configurations support six or eight processors with the following requirements/ capabilities: • Only 8100 series processors are supported. • Only 8100 series processors are supported. •...
Page 24: Management Options
PCIe (ML2) (LOM) PCIe 15 (ML2) Management options Several management interfaces are available for managing your server. The management options described in this section are provided to support the direct management of Lenovo servers. Function Lenovo Lenovo Lenovo Lenovo Lenovo...
Page 25 UEFI updates only. Firmware updates for optional devices, such as adapters, are not supported. 4. The server UEFI settings for option ROM must be set to Auto or UEFI to update firmware using Lenovo XClarity Administrator or Lenovo XClarity Essentials.
Page 26 28 managed servers concurrently. • Service and support. Lenovo XClarity Administrator can be set up to collect and send diagnostic files automatically to your preferred service provider when certain serviceable events occur in Lenovo XClarity Administrator and the managed endpoints.
Page 27 Windows, Linux, or VMware ESXi operating systems and associated device drivers. Note: When you start a server and press F1, the Lenovo XClarity Provisioning Manager interface is displayed by default. However, the text-based interface to system configuration (the Setup Utility) is also available.
Page 28 – Configure the server. – Collect service data for the server. If you run Lenovo XClarity Essentials OneCLI from the server operating system (in-band), you can collect operating system logs as well. You can also choose to view the service data that has been collected or to send the service data to Lenovo Support.
Page 29 Lenovo XClarity Controller Lenovo XClarity Controller is the management processor for the server. It is the third generation of the Integrated Management Module (IMM) service processor that consolidates the service processor functionality, super I/O, video controller, and remote presence capabilities into a single chip on the server system board.
Page 30 • USB Data Safe. Encrypt files to ensure data security on a USB storage device. Note: This tool is available in the People’s Republic of China only. More information about Lenovo Business Vantage is available at: http://support.lenovo.com.cn/lenovo/wsi/es/es.html ThinkSystem SR950 Setup Guide...
Page 31: Chapter 2. Server Components
When you contact Lenovo for help, the machine type, model, and serial number information helps support technicians to identify your server and provide faster service. Figure 1 “Location of the ID label for the Lenovo ThinkSystem SR950” on page 27 shows the location of the label containing the machine type, model, and serial number.
Page 32: Front View
The label provides the default IPv4 host name and default IPv6 link local address of the XCC. Figure 3. Network access tag Front view The front view of the server varies slightly by the model. In some models, components are replaced by fillers. ThinkSystem SR950 Setup Guide...
Page 33 “LCD system information display panel” on page 31) 2.5-inch-drive bays (0-11) USB 2.0 port System-error LED (see “Front operator panel” on page USB 2.0 Lenovo XClarity Controller management port System ID button/LED (see “Front operator panel” on VGA Video port page 30) Network activity LED (see “Front operator panel”...
Page 34: Front Operator Panel
On: The server is turned on. • Network activity LED: When this LED flickers, it indicates that the server is transmitting to or receiving signals from the Ethernet LAN. ThinkSystem SR950 Setup Guide...
Page 35: Lcd System Information Display Panel
• System ID button/LED: Use this blue LED to visually locate the server among other servers. This LED is also used as a presence detection button. You can use Lenovo XClarity Administrator to light this LED remotely. • System-error LED: When this yellow LED is lit, it indicates that a system error has occurred. A system- error LED is also on the rear of the server.
Page 36 Following is an example of the information on the display panel. Table 29. LCD system information display information Callout Callout System name UEFI/POST code Ambient temperature System status Estimated power consumption Following is an illustration of the LCD system information display panel menu options flow. ThinkSystem SR950 Setup Guide...
Page 37: Rear View
The LCD system information display panel displays the following types of information about the server: • Lenovo XClarity Controller (LXCC) system error log Note: The Scroll Down button will only function for this menu option when errors occur. A list of current errors reported by the system will be displayed.
Page 38 A failed power supply can be replaced without turning off the server. You can purchase a power supply option from Lenovo and install the power supply to provide power redundancy or additional power capacity without turning off the server.
Page 39 For information about minimum power supply requirements and power redundancy, see “power supply criteria in the “Install a power supply” topic” on page 128. Each hot-swap power supply has three status LEDs. See Figure 8 “Rear LEDs” on page 35 for information. Rear LEDs Figure 8 “Rear LEDs”...
Page 40: Internal Cable Routing
You can press the power button to turn on the server. On: The server is turned on. System ID LED Use this blue LED to visually locate the server among other servers. You can use Lenovo XClarity (blue) Administrator to light this LED remotely.
Page 41 Figure 9. Cable guide locations Connecting cables To connect cables, observe the following guidelines: • Disconnect all power cords from the server before you connect or disconnect any internal cables. • See the documentation that comes with any external devices for additional cabling instructions. It might be easier for you to route cables before you connect the devices to the server.
Page 42: Cable Routing For Common Components
36 for cable guide locations and descriptions. • Some cable connectors have locks or latches that must be disengaged to disconnect the cable. Common cable routing (lower tray) The following illustration shows cable routing for common components in the lower tray. ThinkSystem SR950 Setup Guide...
Page 43 Figure 10. Cable routing, common cables (lower tray) Table 34. Cable routing, common cables (lower tray) Routing Cable Front panel video port • From: Front panel video port • To: Lower system board in lower compute tray, “Front video” connector (see “System-board connectors”...
Page 44 Note: In this illustration, the image on the left shows the tray right-side up and the image on the right shows the tray upside down. Figure 11. Cable routing, common cables (upper tray with system board) ThinkSystem SR950 Setup Guide...
Page 45: Cable Routing For Drives
Note: In this illustration, the image on the left shows the tray right-side up and the image on the right shows the tray upside down. Figure 12. Cable routing, common cables (upper tray with storage-board assembly) Table 35. Cable routing, common cables (upper tray) Cable Routing Fan cage cable...
Page 46 • SAS drive cables (lower tray) • NVMe drive cables (lower tray) Common drive cables (lower tray) Common drive cables are used by both SAS and NVMe drives. Figure 13. Cable routing, common drive cables (lower tray) ThinkSystem SR950 Setup Guide...
Page 47 Table 36. Cable routing, common drive cables (lower tray) Routing Cable Power to drive • From: Storage interposer (see “Storage interposer connectors” on page 171) backplanes 1, 2, and 3 – For drive backplane 1, use interposer “BP 1/6” connector –...
Page 48 RAID interface for drive • From: RAID card, “C1” connector (see “RAID card connectors” on page 172) backplane 3 • To: Drive backplane, connector “SAS” (see “Drive backplane connectors” on page 173) NVMe drive cables (lower tray) ThinkSystem SR950 Setup Guide...
Page 49 Common drive cables are used by only NVMe drives. Figure 15. Cable routing, NVMe drive cables (lower tray) Table 38. Cable routing, NVMe drive cables (lower tray) Cable Routing Drive backplane 1 NVMe • From: Upper system board in lower compute tray, “PCIe/NVMe” connector (see “System-board connectors”...
Page 50 Note: In this illustration, the image on the left shows the tray right-side up and the image on the right shows the tray upside down. Figure 16. Cable routing, common drive cables (upper tray with compute system board) ThinkSystem SR950 Setup Guide...
Page 51 Note: In this illustration, the image on the left shows the tray right-side up and the image on the right shows the tray upside down. Figure 17. Cable routing, common drive cables (upper tray with storage-board assembly) Table 39. Cable routing, common drive cables (upper tray) Cable Routing Power to drive...
Page 52 Note: In this illustration, the image on the left shows the tray right-side up and the image on the right shows the tray upside down. Figure 18. Cable routing, SAS drive cables (upper tray with system board) ThinkSystem SR950 Setup Guide...
Page 53 Note: In this illustration, the image on the left shows the tray right-side up and the image on the right shows the tray upside down. Figure 19. Cable routing, SAS drive cables (upper tray with storage-board assembly) Table 40. Cable routing, SAS drive cables (upper tray) Cable Routing PCIe SAS interface...
Page 54 Note: In this illustration, the image on the left shows the tray right-side up and the image on the right shows the tray upside down. Figure 21. Cable routing, NVMe drive cables (upper tray with storage-board assembly) ThinkSystem SR950 Setup Guide...
Page 55: Parts List
Use the parts list to identify each of the components that are available for this server. For more information about ordering the parts shown in Figure 22 “Server components” on page 52: http://datacentersupport.lenovo.com/us/en/products/servers/thinksystem/sr950/7X12/parts Note: Depending on the model, your server might look slightly different from the illustration.
Page 56 Figure 22. Server components ThinkSystem SR950 Setup Guide...
Page 57 Tier 1 CRU at your request with no service agreement, you will be charged for the installation. • Tier 2 customer replaceable unit: You may install a Tier 2 CRU yourself or request Lenovo to install it, at no additional charge, under the type of warranty service that is designated for your server.
Page 58 √ Cable covers √ M.2 backplane √ M.2 drive √ I/O tray √ Adapter (LOM or ML2 x16 network) √ Power supply filler √ Power supply unit √ Chassis lift handle √ System battery (CR2032) √ ThinkSystem SR950 Setup Guide...
Page 59: Power Cords
Several power cords are available, depending on the country and region where the server is installed. To view the power cords that are available for the server: 1. Go to: http://dcsc.lenovo.com/#/ 2. Click Preconfigured Model or Configure to order. 3. Enter the machine type and model for your server to display the configurator page.
Page 60 ThinkSystem SR950 Setup Guide...
Page 61: Chapter 3. Server Hardware Setup
Validate that the server hardware was set up successfully. See “Validate server setup” on page 138. 3. Configure the system. a. Connect the Lenovo XClarity Controller to the management network. See “Set the network connection for the Lenovo XClarity Controller” on page 141.
Page 62: Installation Guidelines
• When you install a new server, download and apply the latest firmware. This will help ensure that any known issues are addressed, and that your server is ready to work with optimal performance. Go to Lenovo ThinkSystem SR950 Drivers and Software to download firmware updates for your server.
Page 63: System Reliability Guidelines
• The Red strip on the drives, adjacent to the release latch, indicates that the drive can be hot-swapped if the server and operating system support hot-swap capability. This means that you can remove or install the drive while the server is still running. Note: See the system specific instructions for removing or installing a hot-swap drive for any additional procedures that you might need to perform before you remove or install the drive.
Page 64: Install Server Hardware Options
Remove the front cover by pressing the release buttons and pulling the cover from the front of the server. Complete the following steps to remove the front cover: Watch the procedure. A video of the replacement process is available: • YouTube • Youku ThinkSystem SR950 Setup Guide...
Page 65: Install The System Board
Figure 23. Front cover removal Step 1. Press release buttons at either side of the front cover. Step 2. Pull the cover forward and remove it from the server. Install the system board System boards are in the upper or lower compute tray that is accessed from the front of the server. S002 CAUTION: The power control button on the device and the power switch on the power supply do not turn off the...
Page 66 • If you have no additional options to install in this compute tray, install the compute tray. See “Install a compute tray” on page 190. • If you have no additional options to install in the upper or lower compute tray, install the front cover. See “Install the front cover” on page 110. ThinkSystem SR950 Setup Guide...
Page 67: Install A Processor-Heat-Sink Module
• PHMs are keyed for the socket where they can be installed and for their orientation in the socket. • See http://www.lenovo.com/us/en/serverproven/ for a list of processors supported for your server. All processors on the system board must have the same speed, number of cores, and frequency.
Page 68 Figure 25. Processor locations on system board Figure 26. Processor layout for multi-processor systems (viewed from front of server) Complete the following steps to install a PHM. Watch the procedure. A video of the installation process is available: • YouTube • Youku ThinkSystem SR950 Setup Guide...
Page 69 Step 1. Remove the processor socket cover, if one is installed on the processor socket, by placing your fingers in the half-circles at each end of the cover and lifting it from the system board. Step 2. Install the processor-heat-sink module on the system board. Figure 27.
Page 70: Install A Memory Module
See the Lenovo ThinkSystem SR950 Memory for specific information about installing memory modules and their required installation Population Reference order, based on the number of processors and memory modules in your system and the memory mode that you are implementing.
Page 71 Figure 28. Memory module locations Table 43. Memory module locations on each system board DIMM number System board 1 System board 2 System board 3 System board 4 (lower board, lower (upper board, lower (lower board, upper (upper board, upper tray) DIMM number tray) DIMM number tray) DIMM number...
Page 72 • Never touch the gold memory module connector contacts or allow these contacts to touch the outside of the memory-module connector housing. • Handle memory modules with care: never bend, twist, or drop a memory module. Step 1. Install the memory module. ThinkSystem SR950 Setup Guide...
Page 73 Figure 29. Memory module installation Open the memory module connector retaining clips. If a memory module is already installed in the connector, remove it. Align the keys on the memory module that you are installing with the connector; then, insert the memory module.
Page 74 • All the DRAM DIMMs that are installed must be of the same type, rank, and capacity with minimum capacity of 16 GB. It is recommended to use Lenovo DRAM DIMMs of the same part number. 3. Refer to “DCPMM installation order” on page 71 to determine the most suitable combination and the following: •...
Page 75 9. Make sure the DCPMM firmware is the latest version. If not, update it to the latest version (see https:// sysmgt.lenovofiles.com/help/topic/com.lenovo.lxca.doc/update_fw.html 10. Configure DCPMMs so that the capacity is available for use (see “Configure DC Persistent Memory Module (DCPMM)” on page 147).
Page 76 Table 46. App Direct mode with 2 DCPMMs and 8 DRAM DIMMs per processor (8 processors) In the table below: • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 13 14 17 18 20 21 22 23 ThinkSystem SR950 Setup Guide...
Page 77 2 DCPMMs/6 DRAM DIMMs per processor Table 47. App Direct mode with 2 DCPMMs and 6 DRAM DIMMs per processor (2 processors) In the table below: • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 13 14 17 18 20 21 22 23 2 DCPMMs/4 DRAM DIMMs per processor...
Page 78 Table 52. App Direct mode with 4 DCPMMs and 6 DRAM DIMMs per processor (4 processors) In the table below: • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 17 18 21 22 Processor 3 Processor 4 17 18 21 22 ThinkSystem SR950 Setup Guide...
Page 79 2 DCPMMs/ 8 DRAM DIMMs per processor Table 53. App Direct mode with 2 DCPMMs and 8 DRAM DIMMs per processor (8 processors) In the table below: • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 13 14 17 18 20 21 22 23...
Page 80 Table 57. App Direct mode with 1 DCPMM in the system In the table below: • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 17 18 21 22 Processor 3 Processor 4 17 18 21 22 ThinkSystem SR950 Setup Guide...
Page 81 DCPMM Installation order: App Direct mode with six processors When implementing App Direct Mode, any supported DIMMs in any capacity can be installed. When eight processors are installed in the server: • Processors 1 and 2 are installed in the lower system board of the lower compute tray. •...
Page 82 Processor 6 13 14 17 18 20 21 22 23 2 DCPMMs/ 4 DRAM DIMMs per processor Table 62. App Direct mode with 2 DCPMMs and 4 DRAM DIMMs per processor (6 processors) In the table below: ThinkSystem SR950 Setup Guide...
Page 83 Table 62. App Direct mode with 2 DCPMMs and 4 DRAM DIMMs per processor (6 processors) (continued) • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 17 18 21 22 Processor 3 Processor 4 17 18 21 22 Processor 5 Processor 6...
Page 84 Table 64. App Direct mode with 1 DCPMM in the system (continued) Processor 5 Processor 6 17 18 21 22 ThinkSystem SR950 Setup Guide...
Page 85 DCPMM Installation order: App Direct mode with eight processors When implementing App Direct Mode, any supported DIMMs in any capacity can be installed. When eight processors are installed in the server: • Processors 1 and 2 are installed in the lower system board of the lower compute tray. •...
Page 86 Table 68. App Direct mode with 2 DCPMMs and 6 DRAM DIMMs per processor (8 processors) In the table below: • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 13 14 17 18 20 21 22 23 ThinkSystem SR950 Setup Guide...
Page 87 Table 68. App Direct mode with 2 DCPMMs and 6 DRAM DIMMs per processor (8 processors) (continued) Processor 3 Processor 4 13 14 17 18 20 21 22 23 Processor 5 Processor 6 13 14 17 18 20 21 22 23 Processor 7 Processor 8 13 14...
Page 88 The App Direct part of DCPMM is displayed as persistent memory, while the rest of DCPMM capacity is displayed as system memory. DRAM DIMMs act as cache in this mode. When implementing Mixed Memory Mode, any supported DIMMs in any capacity can be installed. ThinkSystem SR950 Setup Guide...
Page 89 DCPMM Installation order: Mixed Memory mode with two processors When implementing Mixed Memory mode, any supported DIMMs in any capacity can be installed. When two processors are installed in the server: • Processors 1 and 2 are installed in the lower system board of the lower compute tray. Several configurations are supported with implementing Mixed Memory mode with six processors: •...
Page 90 Table 75. Mixed Memory mode with 2 DCPMMs and 4 DRAM DIMMs per processor (2 processors) In the table below: • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 17 18 21 22 ThinkSystem SR950 Setup Guide...
Page 91 DCPMM Installation order: Mixed Memory mode with four processors When implementing Mixed Memory mode, any supported DIMMs in any capacity can be installed. When four processors are installed in the server: • Processors 1 and 2 are installed in the lower system board of the lower compute tray. •...
Page 92 Table 79. Mixed Memory mode with 2 DCPMMs and 4 DRAM DIMMs per processor (4 processors) In the table below: • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 17 18 21 22 Processor 3 Processor 4 17 18 21 22 ThinkSystem SR950 Setup Guide...
Page 93 DCPMM Installation order: Mixed Memory mode with six processors When implementing Mixed Memory mode, any supported DIMMs in any capacity can be installed. When six processors are installed in the server: • Processors 1 and 2 are installed in the lower system board of the lower compute tray. •...
Page 94 In the table below: • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 17 18 21 22 Processor 3 Processor 4 17 18 21 22 Processor 5 Processor 6 17 18 21 22 ThinkSystem SR950 Setup Guide...
Page 95 DCPMM Installation order: Mixed Memory mode with eight processors When implementing Mixed Memory mode, any supported DIMMs in any capacity can be installed. When eight processors are installed in the server: • Processors 1 and 2 are installed in the lower system board of the lower compute tray. •...
Page 96 Table 87. Mixed Memory mode with 2 DCPMMs and 4 DRAM DIMMs per processor (8 processors) In the table below: • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 17 18 21 22 Processor 3 Processor 4 ThinkSystem SR950 Setup Guide...
Page 97 Table 87. Mixed Memory mode with 2 DCPMMs and 4 DRAM DIMMs per processor (8 processors) (continued) 17 18 21 22 Processor 5 Processor 6 17 18 21 22 Processor 7 Processor 8 17 18 21 22 Memory Mode In Memory Mode, 100% of DCPMM capacity acts as system memory. The DRAM DIMMs act as cache. When implementing Memory Mode, any supported DIMMs in any capacity can be installed.
Page 98 Table 90. Memory mode with 2 DCPMMs and 8 DRAM DIMMs per processor (2 processors) In the table below: • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 13 14 17 18 20 21 22 23 ThinkSystem SR950 Setup Guide...
Page 99 2 DCPMMs/ 6 DRAM DIMMs per processor Table 91. Memory mode with 2 DCPMMs and 6 DRAM DIMMs per processor (2 processors) In the table below: • P = DCPMM • D = DRAM DIMM Note: In this configuration, only RDIMMs are recommended for the DRAM DIMMs. Processor 1 Processor 2 13 14...
Page 100 Processor 4 17 18 21 22 2 DCPMMs/ 8 DRAM DIMMs per processor Table 95. Memory mode with 2 DCPMMs and 8 DRAM DIMMs per processor (4 processors) In the table below: • P = DCPMM ThinkSystem SR950 Setup Guide...
Page 101 Table 95. Memory mode with 2 DCPMMs and 8 DRAM DIMMs per processor (4 processors) (continued) • D = DRAM DIMM Processor 1 Processor 2 13 14 17 18 20 21 22 23 Processor 3 Processor 4 13 14 17 18 20 21 22 23 2 DCPMMs/ 6 DRAM DIMMs per processor Table 96.
Page 102 Table 99. Memory mode with 4 DCPMMs and 6 DRAM DIMMs per processor (6 processors) In the table below: • P = DCPMM • D = DRAM DIMM Processor 1 Processor 2 17 18 21 22 Processor 3 Processor 4 17 18 21 22 Processor 5 Processor 6 ThinkSystem SR950 Setup Guide...
Page 103 Table 99. Memory mode with 4 DCPMMs and 6 DRAM DIMMs per processor (6 processors) (continued) 17 18 21 22 2 DCPMMs/ 8 DRAM DIMMs per processor Table 100. Memory mode with 2 DCPMMs and 8 DRAM DIMMs per processor (6 processors) In the table below: •...
Page 104 Table 102. App Direct mode with 2 DCPMMs and 4 DRAM DIMMs per processor (6 processors) (continued) • D = DRAM DIMM Processor 1 Processor 2 17 18 21 22 Processor 3 Processor 4 17 18 21 22 Processor 5 Processor 6 17 18 21 22 ThinkSystem SR950 Setup Guide...
Page 105 DCPMM Installation order: Memory mode with eight processors When implementing Memory mode, any supported DIMMs in any capacity can be installed. However, you should consider using DIMMs that are greater than 32 GB. When eight processors are installed in the server: •...
Page 106 In the table below: • P = DCPMM • D = DRAM DIMM Note: In this configuration, only RDIMMs are recommended for the DRAM DIMMs. Processor 1 Processor 2 13 14 17 18 20 21 22 23 ThinkSystem SR950 Setup Guide...
Page 107: Install A Hard Disk Drive Backplane
Table 106. Memory mode with 2 DCPMMs and 6 DRAM DIMMs per processor (8 processors) (continued) Processor 3 Processor 4 13 14 17 18 20 21 22 23 Processor 5 Processor 6 13 14 17 18 20 21 22 23 Processor 7 Processor 8 13 14...
Page 108 RAID controller (SAS cable) or the system board (NVMe cable). See “Cable routing for drives” on page 41. Complete the following steps to install a hard disk drive backplane in the upper compute tray or optional storage tray. ThinkSystem SR950 Setup Guide...
Page 109 Watch the procedure. A video of the replacement process is available: • YouTube • Youku Step 1. Connect the power cable to the backplane. If this cable is connected to the storage interposer, you might find it easier to disconnect it from the storage interposer and then reconnect it to the storage interposer after the backplane is installed.
Page 110 Install the labels that match the label types used for your server. 4. Remove the lower compute tray. See “Remove a compute tray” on page 188. 5. Remove the fan cage. See “Remove a fan cage (lower tray)” on page 199. ThinkSystem SR950 Setup Guide...
Page 111 6. Move or remove the storage interposer to access the hard disk drive backplanes. See “Remove a storage interposer (lower tray)” on page 250. 7. If a hard disk drive backplane is already installed in this location: a. After noting their locations, remove any hard disk drives that are installed in the lower compute tray. See “Remove a hard disk drive”...
Page 112: Install A Hard Disk Drive
Complete the following steps to install a hard disk drive: Watch the procedure. A video of the installation process is available: • YouTube ThinkSystem SR950 Setup Guide...
Page 113 • Youku Note: NVMe drive bays can accept either SATA/SAS or NVMe drives. Step 1. Determine the drive type that you can install in the bay (SATA/SAS or NVMe) based on labels stenciled on the front of the server and any drive bay labels that might have been applied to the front of the server.
Page 114: Install The Front Cover
Complete the following steps to install the front cover: Watch the procedure. A video of the replacement process is available: • YouTube • Youku Figure 33. Front cover installation Step 1. Position the cover on the front of the server. ThinkSystem SR950 Setup Guide...
Page 115: Install An Adapter
Review the following guidelines before installing the Mellanox Innova™-2 Flex Open Programmable SmartNIC: • If you install the Mellanox Innova™-2 Flex Open Programmable SmartNIC in the Lenovo ThinkSystem SR950, the maximum supported ambient temperature for the system is 35°C. • The Mellanox Innova™-2 Flex Open Programmable SmartNIC is not supported in the following adapter slots: 1, 5, and 10.
Page 116 10 to 15. See “Install the riser for slot 10 to 15 (riser 2)” on page 244. 2. If any of the adapters in the I/O tray have internal cables, make sure that they are connected before installing the I/O tray. ThinkSystem SR950 Setup Guide...
Page 117 3. If you have no additional options to install in the I/O tray, install it. See “Install the I/O tray” on page 219. Install an adapter in slots 5 through 8 PCIe adapters in slots 5 through 8 and the LOM adapter in slot 9 are in the I/O tray that is accessed from the rear of the server.
Page 118 The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source. CAUTION: ThinkSystem SR950 Setup Guide...
Page 119 Make sure that all server power cords are disconnected from their power sources before performing this procedure. Before you install an optional adapter in slot 1 to 4: 1. If the I/O tray is installed in the server, remove it. See “Remove the I/O tray” on page 218. Important: You must remove the riser from the I/O tray before installing an adapter.
Page 120 Align the adapter with the riser slot and insert it; then, press the adapter into the riser until the connector is fully seated. Step 3. Close and lock the retention latch. If you have no additional adapters to install in the riser after installing an optional adapter in slot 10 to 15: ThinkSystem SR950 Setup Guide...
Page 121 1. If any of the adapters in the riser have internal cables, make sure that they are connected before installing the riser in the I/O tray. 2. Install the riser in the I/O tray. See “Install the riser for slot 10 to 15 (riser 2)” on page 244. 3.
Page 122 The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source. ThinkSystem SR950 Setup Guide...
Page 123 CAUTION: Make sure that all server power cords are disconnected from their power sources before performing this procedure. Before you install an M.2 drive, if the M.2 backplane is installed in the server, remove it. See “Remove the M.2 backplane” on page 221. Complete the following steps to install an M.2 drive in the M.2 backplane.
Page 124: Install A Riser
The riser for adapter slot 1 to 4 (riser 1) is in the I/O tray that is accessed from the rear of the server. After installing adapters in the riser, insert the riser in the I/O tray and secure it with two captive screws. S002 ThinkSystem SR950 Setup Guide...
Page 125 CAUTION: The power control button on the device and the power switch on the power supply do not turn off the electrical current that is supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
Page 126 To remove all electrical current from the device, ensure that all power cords are disconnected from the power source. Install the optional M.2 backplane and optional riser bracket for slots 14 and 15 before installing the riser for adapter slot 10 through 15 (riser 2). ThinkSystem SR950 Setup Guide...
Page 127 CAUTION: Make sure that all server power cords are disconnected from their power sources before performing this procedure. If you are installing an optional LOM adapter in slot 9, install it before installing the riser for slot 10 to 15 (riser 2).
Page 128 The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source. ThinkSystem SR950 Setup Guide...
Page 129 CAUTION: Make sure that all server power cords are disconnected from their power sources before performing this procedure. If you are installing an optional LOM adapter in slot 9, install it before installing the riser bracket for slots 14 and 15. See “Install a LOM adapter in slot 9” on page 111. Before you install the optional riser bracket for slots 14 and 15: 1.
Page 130 5. If any of the adapters in the riser have internal cables, make sure that they are connected before installing the riser in the I/O tray. Complete the following steps to install the riser for slots 16 and 17. Watch the procedure. A video of the installation process is available: • YouTube • Youku ThinkSystem SR950 Setup Guide...
Page 131 Figure 45. Riser for slots 16 and 17 installation Step 1. Align the riser with the I/O tray, making sure that the sides of the riser fit into the guides on the I/O tray, and insert the riser; then, press the riser into the I/O tray until the connector is fully seated. Step 2.
Page 132: Install A Power Supply
Install a power supply Insert the power supply in its bay and press it in until the release tab locks. Power supplies are hot-swap devices that can be installed while the server is powered on. S001 ThinkSystem SR950 Setup Guide...
Page 133 DANGER Electrical current from power, telephone, and communication cables is hazardous. To avoid a shock hazard: • Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this product during an electrical storm. • Connect all power cords to a properly wired and grounded electrical outlet. •...
Page 134 4 or 8 2, 3 4 or 8 2, 4 4 or 8 3, 4 4 or 8 1, 2, 3 yes/no 4 or 8 1, 2, 4 no/yes 4 or 8 1, 3, 4 yes/no ThinkSystem SR950 Setup Guide...
Page 135 Table 109. Power supply redundancy (continued) Total number of Minimum number Bays where Power supply Power source processors of power power supplies redundancy — redundancy — installed in server supplies to are installed single input multiple input maintain system power source power sources operation (see Note 1)
Page 136: Installing The 4S Performance To 8S Upgrade Kit
• Nine Torx-head screws (you will use eight screws, but an extra screw is included in case it is needed) Important: The 4S Performance to 8S Upgrade Kit enables the Lenovo ThinkSystem SR950 server to support eight processors. However, extra processors do not come with the conversion kit; you are responsible for purchasing the desired number and type of processors.
Page 137 S036 CAUTION: Make sure that all server power cords are disconnected from their power sources before performing this procedure. The process for installing the conversion kit requires that you remove the existing midplanes (interconnect cards) in the server and replace them with the midplanes provided in the conversion kit. In addition, an upper compute tray must installed in the server to take advantage of all eight processors.
Page 138 Step 5. If the server is in a rack, remove it from the rack. See the ThinkSystem SR950 Rack Installation Instructions, which is available here: http://thinksystem.lenovofiles.com/help/topic/7X12/pdf_files.html Step 6. Remove the midplanes from the server (depending on the configuration, you might need to remove up to 6 midplanes).
Page 139 Step 7. Install the midplanes that are provided with the conversion kit. Install only midplane B, C, and D. Note: Two midplane C interconnect cards are provided in the conversion kit. Make sure to install both of them. Instructions for installing the midplanes are available here: http://thinksystem.lenovofiles.com/help/topic/7X12/install_a_midplane.html Step 8.
Page 140 Remove the storage board assembly. http://thinksystem.lenovofiles.com/help/topic/7X12/remove_the_storage_board.html Install the system board into the lower bay in the tray. http://thinksystem.lenovofiles.com/help/topic/7X12/install_the_compute_system_board.html Connect cables to the lower system board. http://thinksystem.lenovofiles.com/help/topic/7X12/cable_routing_common.html http:// thinksystem.lenovofiles.com/help/topic/7X12/cable_routing_for_drives.html Install the into the upper bay in the tray. ThinkSystem SR950 Setup Guide...
Page 141: Install The Server In A Rack
Remove the fan fillers in fan bay 8, 10, and 12, and install fans in those bays. http://thinksystem.lenovofiles.com/help/topic/7X12/install_the_fan.html Step 10. Install the server back into a rack. See the ThinkSystem SR950 Rack Installation Instructions, which is available here: http://thinksystem.lenovofiles.com/help/topic/7X12/pdf_files.html Step 11. Install all the compute tray and I/O tray that were removed.
Page 142: Validate Server Setup
Power off the server (disconnect input power) The server remains in a standby state when it is connected to a power source, allowing the Lenovo XClarity Controller to respond to remote power-on requests. To remove all power from the server (power LED off), you must disconnect all power cables.
Page 143 When in a standby state, the server can respond to remote power-on requests sent to the Lenovo XClarity Controller. For information about powering on the server, see “Power on the server (connect input power)” on page 137. Chapter 3 Server hardware setup...
Page 144 ThinkSystem SR950 Setup Guide...
Page 145: Chapter 4. System Configuration
The following methods are available to set the network connection for the Lenovo XClarity Controller if you are not using DHCP: • If a monitor is attached to the server, you can use Lenovo XClarity Controller to set the network connection.
Page 146: Update The Firmware
Hat Enterprise Linux (RHEL) and SUSE Linux Enterprise Server (SLES) operating system distributions. Machine-type-specific firmware-only UXSPs are also available. See the following table to determine the best Lenovo tool to use for installing and setting up the firmware: ThinkSystem SR950 Setup Guide...
Page 147 Note: The server UEFI settings for option ROM must be set to Auto or UEFI to update firmware using Lenovo XClarity Administrator or Lenovo XClarity Essentials. For more information, see the following Tech Tip: https://datacentersupport.lenovo.com/us/en/solutions/ht506118 Out-of- Off- Graphical In-band band...
Page 148 Additional information about using Lenovo XClarity Provisioning Manager to update firmware is available http://sysmgt.lenovofiles.com/help/topic/LXPM/platform_update.html • Lenovo XClarity Controller If you need to install a specific update, you can use the Lenovo XClarity Controller interface for a specific server. Notes: – To perform an in-band update through Windows or Linux, the operating system driver must be installed and the Ethernet-over-USB (sometimes called LAN over USB) interface must be enabled.
Page 149: Configure The Firmware
Several options are available to install and set up the firmware for the server. Important: Do not configure option ROMs to be set to Legacy unless directed to do so by Lenovo Support. This setting prevents UEFI drivers for the slot devices from loading, which can cause negative side effects for Lenovo software, such as Lenovo XClarity Administrator and Lenovo XClarity Essentials OneCLI, and to the Lenovo XClarity Controller.
Page 150: Memory Configuration
• Lenovo XClarity Essentials OneCLI You can use the config application and commands to view the current system configuration settings and make changes to Lenovo XClarity Controller and UEFI. The saved configuration information can be used to replicate or restore other systems.
Page 151: Memory Mirroring
Memory channels are grouped in pairs with each channel receiving the same data. If a failure occurs, the memory controller switches from the DIMMs on the primary channel to the DIMMs on the backup channel. the Lenovo ThinkSystem SR950 Memory Population Reference for memory mirroring requirements and recommended memory module population sequences.
Page 152 Go to System Configuration and Boot Management ➙ System Settings ➙ Intel Optane DCPMMs to configure and manage DCPMMs. • Lenovo XClarity Essentials OneCLI Some management options are available in commands that are executed in the path of Lenovo XClarity Essentials OneCLI in the operating system. See https://sysmgt.lenovofiles.com/help/topic/toolsctr_cli_ lenovo/onecli_t_download_use_tcscli.html...
Page 153 These values are selectable options for DCPMM settings, and do not represent the current DCPMM status. In addition, you can take advantage of a memory configurator, which is available at the following site: http://1config.lenovo.com/#/memory_configuration Alternatively, set DCPMM Goals with the following commands in OneCLI: 1. Set create goal status.
Page 154 2. Set the security passphrase. onecli.exe config set IntelOptaneDCPMM.SecurityPassphrase "123456" --imm USERID:PASSW0RD@10.104.195.86 Where 123456 stands for the passphrase. 3. Reboot the system. • Disable security: 1. Disable security. onecli.exe config set IntelOptaneDCPMM.SecurityOperation "Disable Security" --imm USERID:PASSW0RD@10.104.195.86 2. Enter passphrase. ThinkSystem SR950 Setup Guide...
Page 155: Raid Configuration
In the case the passphrases are lost or forgotten, the stored data cannot be backed up or restored, but you can contact Lenovo service for administrative secure erase. • After three failed unlocking attempts, the corresponding DCPMMs enter “exceeded” state with a system warning message, and the DCPMM unit can only be unlocked after the system is rebooted.
Page 156: Install The Operating System
Several options are available to install an operating system on the server. • Lenovo XClarity Administrator If you are managing your server using Lenovo XClarity Administrator, you can use it to deploy operating- system images to up to 28 managed servers concurrently. For more information about using Lenovo XClarity Administrator to deploy operating system images, see: http://sysmgt.lenovofiles.com/help/topic/com.lenovo.lxca.doc/compute_node_image_deployment.html...
Page 157 Alternatively, you can use the s s a a v v e e command from Lenovo XClarity Essentials OneCLI to create a backup of all configuration settings. For more information about the s s a a v v e e command, see: http://sysmgt.lenovofiles.com/help/topic/toolsctr_cli_lenovo/onecli_r_save_command.html...
Page 158 ThinkSystem SR950 Setup Guide...
Page 159: Chapter 5. Resolving Installation Issues
• “Displayed system memory less than installed physical memory” on page 157 • “A Lenovo optional device that was just installed does not work” on page 158 • “Voltage planar fault is displayed in the event log” on page 158...
Page 160 Run the diagnostics tests for the hard disk drives. When you start a server and press F1, the Lenovo XClarity Provisioning Manager interface is displayed by default. You can perform hard drive diagnostics from this interface. From the Diagnostic page, click Run Diagnostic ➙...
Page 161 • Replace the affected backplane signal cable. • Replace the affected backplane. 8. Run the diagnostics tests for the hard disk drives. When you start a server and press F1, the Lenovo XClarity Provisioning Manager interface is displayed by default. You can perform hard drive diagnostics from this interface.
Page 162 • If a DIMM was disabled by a systems-management interrupt (SMI), replace the DIMM. • If a DIMM was disabled by the user or by POST, reseat the DIMM; then, run the Lenovo XClarity Provisioning Manager and enable the DIMM.
Page 163 1. Revert the system to the minimum configuration. See “Specifications” on page 3 for the minimally required number of processors and DIMMs. 2. Restart the system. • If the system restarts, add each of the items that you removed one at a time, restarting the system each time, until the error occurs.
Page 164 ThinkSystem SR950 Setup Guide...
Page 165: Appendix A. Getting Help And Technical Assistance
Appendix A. Getting help and technical assistance If you need help, service, or technical assistance or just want more information about Lenovo products, you will find a wide variety of sources available from Lenovo to assist you. On the World Wide Web, up-to-date information about Lenovo systems, optional devices, services, and support are available at: http://datacentersupport.lenovo.com...
Page 166: Collecting Service Data
Collecting service data To clearly identify the root cause of a server issue or at the request of Lenovo Support, you might need collect service data that can be used for further analysis. Service data includes information such as event logs and hardware inventory.
Page 167: Contacting Support
• Lenovo XClarity Essentials OneCLI Lenovo XClarity Essentials OneCLI has inventory application to collect service data. It can run both in- band and out-of-band. When running in-band within the host operating system on the server, OneCLI can collect information about the operating system, such as the operating system event log, in addition to the hardware service data.
Page 168 ThinkSystem SR950 Setup Guide...
Page 169: Appendix B. Component Reference
Hard disk drive “Signal” connector System-board LEDs The following illustration shows the location of light path diagnostic LEDs and light path diagnostic switch on the system board. These LEDs can often identify the source of an error. © Copyright Lenovo 2017, 2019...
Page 170: Storage-Board-Assembly Connectors
System board error LED on: An error has occurred on the Complete the following steps: system board. 1. Check the Lenovo XClarity Controller event log and the system error log for information about the error. 2. Save the log if necessary, and clear the log afterward.
Page 171: I/O Tray Connectors
Figure 51. Storage-board-assembly connectors Table 113. Storage-board-assembly connectors Callout Callout “NVMe” connector Hard disk signal connector (J13) Fan signal connector (J5) Hard disk drive power connector (J2) Fan power connector (J3) “PCIe” connector “NVMe” connector “NVMe” connector I/O tray connectors The following illustration shows the internal connectors on the I/O tray (including connectors of PCIe slot 5 to 8 and the LOM connector of slot 9).
Page 172 Network (LOM) connector (slot 9) PCIe3, x16, 75 watt connector (slot 5) TCM connector (see “Enable TPM/TCM” in the Lenovo ThinkSystem SR950 Maintenance Manual PCIe3, x16, 75 watt connector (slot 6) Riser for slot 10 to 15 connectors (Riser 2) PCIe3, x8, 25 watt connector (slot 7) M.2 SATA/PCIe (Hypervisor) backplane connector...
Page 173 Power-on password override. Changing the position of this switch bypasses the power-on password check the next time the server is turned on and starts the Lenovo XClarity Provisioning Manager so that you can change or delete the power-on password. You do not have to move the switch back to the default position after the power-on password in overridden.
Page 174 PCIe3 x16 (Slot 3 or 12) PCIe3 x16 (Slot 4 or 13) Slot 10 to 15 riser connectors There are five PCIe3 x16, full height, half length connectors and one ML2 PCIe3 x16 connector in the slot 10 to 15 riser. ThinkSystem SR950 Setup Guide...
Page 175: Storage Interposer Connectors
Figure 55. Slot 10 to 15 riser connectors Table 118. Slot 10 to 15 riser connectors Callout Callout PCIe3 x16 (Slot 10) PCIe3 x16 (Slot 13) PCIe3 x16 (Slot 11) PCIe3 x16 (Slot 14) PCIe3 x16 (Slot 12) ML2 PCIe3 x16 (Slot 15) Slot 16 and 17 riser There are two PCIe3 x8, full height, half length connectors in the slot 16 and 17 riser.
Page 176: Raid Card Connectors
RAID connector for drive backplane 2 or 5 (SAS only) Unused RAID connector for drive backplane 1 or 4 (SAS only) RAID connector for drive backplane 3 or 6 (SAS only) PCI connector to storage interposer ThinkSystem SR950 Setup Guide...
Page 177: Drive Backplane Connectors
Figure 59. RAID card connectors (type 2) Table 122. RAID card connectors (type 2) Callout Callout RAID flash power module (J14) connector RAID connector for drive backplane 1 or 4 (SAS only) RAID connector for drive backplane 2 or 5 (SAS only) PCI connector to storage interposer Drive backplane connectors The following illustration shows the internal connectors on the drive backplanes.
Page 178: Component Access
• I/O adapters 16 and 17 (riser card): see “Remove an I/O adapter from slots 16 and 17” on page 180 and “Install an I/O adapter in slots 16 and 17” on page 186 Installation considerations for the Mellanox Innova™-2 Flex Open Programmable SmartNIC Review the following guidelines before installing the Mellanox Innova™-2 Flex Open Programmable SmartNIC: ThinkSystem SR950 Setup Guide...
Page 179 • If you install the Mellanox Innova™-2 Flex Open Programmable SmartNIC in the Lenovo ThinkSystem SR950, the maximum supported ambient temperature for the system is 35°C. • The Mellanox Innova™-2 Flex Open Programmable SmartNIC is not supported in the following adapter slots: 1, 5, and 10.
Page 180 “Remove the I/O tray” on page 218. 2. Remove the riser for slot 1 to 4 (riser 1) to access the adapter connectors in the I/O tray. See “Remove the riser for slot 1 to 4 (riser 1)” on page 237. ThinkSystem SR950 Setup Guide...
Page 181 Complete the following steps to remove an adapter from slots 5 through 8. Watch the procedure. A video of the installation process is available: • YouTube • Youku Figure 63. Adapter removal (slots 5 through 8) Step 1. Disengage the adapter from its connector on the I/O tray and lift the adapter from the I/O tray. After you remove the adapter: If you are instructed to return the adapter, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.
Page 182 10 to 15 (riser 2)” on page 238. Complete the following steps to remove a LOM adapter from slot 9. Watch the procedure. A video of the installation process is available: • YouTube • Youku ThinkSystem SR950 Setup Guide...
Page 183 Figure 64. LOM adapter removal (slot 9) Step 1. Fully loosen the captive thumbscrew on the side of the LOM adapter secures it to the bracket on the I/O tray. Step 2. Disengage the LOM adapter from its connector on the I/O tray and lift the adapter from the I/O tray. After you remove a LOM adapter: If you are instructed to return the adapter, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.
Page 184 Before you remove an adapter from slot 1 to 4: 1. Disconnect and label all cables connected to adapters in the I/O tray; then, remove the I/O tray. See “Remove the I/O tray” on page 218. ThinkSystem SR950 Setup Guide...
Page 185: Adapter In Slot 1 To
2. Remove the riser for slots 16 and 17. See “Remove the riser for slots 16 and 17” on page 241. Complete the following steps to remove an adapter from slots 16 and 17. Watch the procedure. A video of the installation process is available: •...
Page 186: Install An Adapter In Slots 5 Through 8
PCIe adapters in slots 5 through 8 and the LOM adapter in slot 9 are in the I/O tray that is accessed from the rear of the server. With the I/O tray removed from the chassis, insert the adapter in the I/O tray. Note: You should not install a RAID or Host Bus Adapter card in slot 7. ThinkSystem SR950 Setup Guide...
Page 187 S002 CAUTION: The power control button on the device and the power switch on the power supply do not turn off the electrical current that is supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
Page 188: Adapter In Slot
Important: You must remove the riser from the I/O tray before installing an adapter. Complete the following steps to install a LOM adapter in slot 9. Watch the procedure. A video of the installation process is available: • YouTube • Youku ThinkSystem SR950 Setup Guide...
Page 189: Adapter In Slot 10 To
Figure 69. LOM adapter installation (slot 9) Step 1. Attach the extension bracket to the top of the LOM adapter using two screws. Step 2. Align the adapter with I/O tray slot 9 and insert it; then, press the adapter into the I/O tray until the connector is fully seated.
Page 190: Install An I/O Adapter In Slots 16 And 17
I/O adapters in slots 16 and 17 are in an I/O tray riser that is accessed from the rear of the server. With the riser removed from the I/O tray, open the retention latch and insert the adapter in the riser; then, close the retention latch. ThinkSystem SR950 Setup Guide...
Page 191 S002 CAUTION: The power control button on the device and the power switch on the power supply do not turn off the electrical current that is supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
Page 192: Upper/Lower Compute Tray Replacement
The upper and lower compute trays are accessed from the front of the server. Open the release levers to extract the compute tray, pressing the release tabs when it stops to remove the tray fully from the chassis. S002 CAUTION: ThinkSystem SR950 Setup Guide...
Page 193 The power control button on the device and the power switch on the power supply do not turn off the electrical current that is supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
Page 194 The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source. CAUTION: ThinkSystem SR950 Setup Guide...
Page 195: System Board Replacement
Make sure that all server power cords are disconnected from their power sources before performing this procedure. Before you install the compute tray: 1. Make sure that all cables, adapters, and other components are installed and seated correctly and that you have not left loose tools or parts inside the server.
Page 196 See “Remove a system board filler” on page 195, as applicable. Complete the following steps to remove the compute system board: Watch the procedure. A video of the replacement process is available: • YouTube • Youku ThinkSystem SR950 Setup Guide...
Page 197 Figure 75. System board removal Step 1. Disconnect all cables on the system board that go to connectors in the compute tray. See “Internal cable routing” on page 36. Step 2. Press the release clips and slide the system board out of the compute tray. After you remove the system board: •...
Page 198 After you install the system board: • If you installed the lower system board in a compute tray, slide the upper system board or filler back into the compute tray until the release clips snap into the locked position. ThinkSystem SR950 Setup Guide...
Page 199: System Board Filler Replacement
• If you are not installing another system board, install the compute tray and front cover. See “Install a compute tray” on page 190 and “Install the front cover” on page 205. System board filler replacement System board fillers are in the upper or lower compute tray that is accessed from the front of the server. Remove a system board filler Remove a system board filler by pressing the release clips on the filler, and sliding it out of the compute tray.
Page 200 Make sure that all server power cords are disconnected from their power sources before performing this procedure. Complete the following steps to install the compute system board filler: Watch the procedure. A video of the replacement process is available: • YouTube • Youku ThinkSystem SR950 Setup Guide...
Page 201: Fan Cage Replacement
Figure 78. System board filler installation Step 1. Align the system board filler with the rails in the compute tray; then, insert the system board filler, making sure that the rails on the board fit into the slots in the compute tray. Step 2.
Page 202 Press the fan cage releases at either side of the fan cage; then, pull the fan cage toward the front of the compute or storage tray and lift the cage slightly to access the connector on the underside of the fan cage. ThinkSystem SR950 Setup Guide...
Page 203 Step 3. Disconnect the cable from the connector in the underside of the fan cage. Attention: To prevent damage to components, lift the fan cage straight up when removing it from the tray. Step 4. Lift and remove the fan cage from the tray. If you are instructed to return the fan cage, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.
Page 204 Install the upper fan cage by connecting the fan cage electrical connector, inserting the fan cage in the upper tray, and pushing it backward until it locks in place. S002 ThinkSystem SR950 Setup Guide...
Page 205 CAUTION: The power control button on the device and the power switch on the power supply do not turn off the electrical current that is supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
Page 206 Push the fan cage backward until it locks in place. If the fan cage does not move into place freely, make sure that no cables are obstructing its movement. After you have installed the upper fan cage: 1. Close the compute or storage tray release levers. 2. Turn the tray right-side up. ThinkSystem SR950 Setup Guide...
Page 207 3. If you removed one or more system boards or a compute system board filler from a compute tray, install the system boards or system board filler. See “Install a system board” on page 193. 4. Install the upper compute tray or storage tray. See “Install a compute tray” on page 190 or “Install the storage tray (fully removed)”...
Page 208 Push the fan cage backward until it locks in place. If the fan cage does not move into place freely, make sure that no cables are obstructing its movement. After you have installed the lower fan cage: 1. Close the compute tray release levers. ThinkSystem SR950 Setup Guide...
Page 209: Front Cover Replacement
2. Install the lower compute tray; then, install the front cover. See “Install a compute tray” on page 190 and “Install the front cover” on page 205. Front cover replacement Use the following procedures to remove and install the front cover. Remove the front cover Remove the front cover by pressing the release buttons and pulling the cover from the front of the server.
Page 210: Hard Disk Drive Replacement
“NVMe,” it indicates the installed drives are NVMe solid-state drives. Attention: To make sure that there is adequate system cooling, do not operate the server for more than 2 minutes without either a hard disk drive or a filler panel installed in each bay. ThinkSystem SR950 Setup Guide...
Page 211 Complete the following steps to remove a hard disk drive. Watch the procedure. A video of the installation process is available: • YouTube • Youku Step 1. Make a note of the bay where the hard disk drive is installed: drives must be installed in the bay from which they were removed.
Page 212 Check the hard disk drive status LED to verify that the hard disk drive is operating correctly. • If the yellow hard disk drive status LED of a drive is lit continuously, that drive is faulty and must be replaced. ThinkSystem SR950 Setup Guide...
Page 213 2. If the server is configured for RAID operation, you might have to reconfigure your disk arrays after you install hard disk drives. See “RAID configuration” in the Lenovo ThinkSystem SR950 Setup Guide information. Remove a hard disk drive filler Remove a hard disk drive filler by pressing the release tab and pulling the filler from the bay.
Page 214: Hard Disk Drive Backplane Replacement
The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source. ThinkSystem SR950 Setup Guide...
Page 215 CAUTION: Make sure that all server power cords are disconnected from their power sources before performing this procedure. Before you remove the hard disk drive backplane: 1. Remove the front cover. See “Remove the front cover” on page 205. 2. After noting their locations, remove any hard disk drives that are installed in the upper tray. See “Remove a hard disk drive”...
Page 216 6. Move cables and harnesses to provide a clear path for accessing the hard disk drive backplanes and their connectors. Complete the following steps to remove the hard disk drive backplane: Watch the procedure. A video of the replacement process is available: • YouTube • Youku ThinkSystem SR950 Setup Guide...
Page 217 Step 1. Remove the hard disk drive backplane. Figure 90. Hard disk drive backplane (lower) removal Grasp the backplane and pull it up and for easier access to the power and data cable connections. Step 2. Disconnect all power and data cables on the hard disk drive backplane that go to the storage interposer or to connectors on the system board or optional storage tray.
Page 218 See “Cable routing for drives” on page 41. Step 2. Install the hard disk drive backplane. Note: Existing cables might need to be removed from their retaining clips or moved to the side to install the backplane. ThinkSystem SR950 Setup Guide...
Page 219 Figure 91. Hard disk drive backplane (upper) installation Align the backplane with its location in the tray; then, insert the backplane and push it down until it is fully seated. Step 3. Connect the data cables to the backplane. (SAS backplanes have only one data cable. NVME backplanes have two data cables.) See “Cable routing for drives”...
Page 220 Connect the data cables to the backplane. (SAS backplanes have only one data cable. NVME backplanes have two data cables.) Step 2. Install the hard disk drive backplane. Note: Existing cables might need to be removed from their retaining clips or moved to the side to install the backplane. ThinkSystem SR950 Setup Guide...
Page 221: I/O Tray Replacement
Figure 92. Hard disk drive backplane (lower) installation Align the backplane with its location in the server; then, insert the backplane and push it down until it is fully seated. Step 3. Repeat Step 1 on page 216 and Step 2 on page 216 for each hard disk drive backplane being installed in the lower compute tray.
Page 222 I/O tray, after it is installed in the server. • If you are managing the server from Lenovo XClarity Administrator, make sure that you unmanage the server before removing the I/O tray. Then, you can manage the server again after the new I/O tray has been replaced.
Page 223 Figure 93. I/O tray removal Step 1. Press the button on each release lever; then, simultaneously rotate the release levers until they are perpendicular to the chassis. Step 2. Pull I/O tray out of the chassis. After you remove the I/O tray: •...
Page 224 See “Cable the server” on page 137. • Update the Universally Unique Identifier (UUID) and DMI/SMBIOS data with new vital product data (VPD). Use the Lenovo XClarity Provisioning Manager to update the UUID and DMI/SMBIOS data. See https:// thinksystem.lenovofiles.com/help/topic/7X12/updating_uuid.html https://thinksystem.lenovofiles.com/...
Page 225: M.2 Backplane Replacement
M.2 backplane replacement The M.2 backplane is in the I/O tray that is accessed from the rear of the server. Remove the M.2 backplane The M.2 backplane is in the I/O tray that is accessed from the rear of the server. After removing the I/O tray and one of the risers to gain access to the M.2 backplane, lift and remove the M.2 backplane from the I/O tray.
Page 226 The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source. ThinkSystem SR950 Setup Guide...
Page 227 Before you install the M.2 backplane, install the M.2 drives. See “Install an M.2 drive” on page 225. Complete the following steps to install the M.2 backplane. Watch the procedure. A video of the installation process is available: • YouTube •...
Page 228: M.2 Drive Replacement
See “Remove the riser for slot 10 to 15 (riser 2)” on page 238 or “Remove the riser for slots 16 and 17” on page 241. 3. Remove the M.2 backplane from your system. See “Remove the M.2 backplane” on page 221. ThinkSystem SR950 Setup Guide...
Page 229 Complete the following steps to remove an M.2 drive. Watch the procedure. A video of the installation process is available: • YouTube • Youku Figure 98. M.2 drive removal Step 1. Press both sides of the drive retainer and slide it away from the connector to release the M.2 drive. If your backplane has two M.2 drives, both will release when you slide the retainer.
Page 230 • When installing two drives, align and support both drives before sliding the retainer forward to secure the drives. • When only one drive is installed, it must be in slot 0. Figure 100. M.2 drive slots ThinkSystem SR950 Setup Guide...
Page 231 Table 125. M.2 drive slots Slot 0 Slot 1 Step 3. Secure the M.2 drives in the backplane. Figure 101. Securing the M.2 drives Attention: Make sure the two nubs on the retainer are in the small holes on the M.2 backplane when the retainer is slid forward.
Page 232: Memory Air Baffle Replacement
Slide the memory air baffle up and off of the memory module connector retaining clips; then, remove the air baffle from the compute system board. If you are instructed to return the memory air baffle, follow all packaging instructions and use any packaging materials that are provided. ThinkSystem SR950 Setup Guide...
Page 233 Appendix B. Component reference...
Page 234 Watch the procedure. A video of the installation process is available: • YouTube • Youku Figure 102. Memory baffle installation Attention: To prevent damage to memory modules and memory module sockets, you must open the retaining clips at both ends of each memory module. ThinkSystem SR950 Setup Guide...
Page 235 Note: Each memory air baffle spans six memory modules. Step 1. Make sure that all six pairs of memory module connector retaining clips spanning the memory air baffle are open. Step 2. Hold the memory air baffle so the “REQUIRED FOR COOLING” text on the baffle is right-side up and facing away from the memory modules;...
Page 236: Memory Module Replacement
See “Remove a system board” on page 192. Figure 103. Memory module locations Complete the following steps to remove a memory module. Watch the procedure. A video of the replacement process is available: ThinkSystem SR950 Setup Guide...
Page 237 If you are not replacing the memory module that you removed: 1. See the Lenovo ThinkSystem SR950 Memory Population Reference for the required installation order of the remaining memory modules. 2. Install a memory module filler, that was originally provided with the PHM option, in any vacant memory module connectors.
Page 238 System board 1 System board 2 System board 3 System board 4 (lower board, lower (upper board, lower (lower board, upper (upper board, upper tray) DIMM number tray) DIMM number tray) DIMM number tray) DIMM number ThinkSystem SR950 Setup Guide...
Page 239 Table 126. Memory module locations on each system board (continued) DIMM number System board 1 System board 2 System board 3 System board 4 (lower board, lower (upper board, lower (lower board, upper (upper board, upper tray) DIMM number tray) DIMM number tray) DIMM number tray) DIMM number Complete the following steps to install a memory module:...
Page 240: Riser Replacement
Restore the data that have been backed up if necessary. Riser replacement Risers are in the I/O tray that is accessed from the rear of the server. The removal and installation procedures for each riser type are different and are described in the following topics: ThinkSystem SR950 Setup Guide...
Page 241 • Riser for PCIe adapters 1 to 4 (riser 1): see “Remove the riser for slot 1 to 4 (riser 1)” on page 237 and “Install the riser for slot 1 to 4 (riser 1)” on page 243 Note: There is no riser for PCIe adapters 5 through 7, the ML2 x16 network adapter (slot 8), and the LOM adapter (slot 9);...
Page 242 The riser for adapter slot 10 to 15 (riser 2) is in the I/O tray that is accessed from the rear of the server. After removing the I/O tray, loosen the two captive screws that secure the riser to the I/O tray; then, remove the riser from the I/O tray. S002 CAUTION: ThinkSystem SR950 Setup Guide...
Page 243 The power control button on the device and the power switch on the power supply do not turn off the electrical current that is supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
Page 244 The riser bracket for slots 14 and 15 is attached to the slot 10 to 15 I/O tray riser that is accessed from the rear of the server. After removing the I/O tray and the riser for slot 10 to 15 (riser 2), release the retaining clips and remove the bracket from the riser. S002 CAUTION: ThinkSystem SR950 Setup Guide...
Page 245 The power control button on the device and the power switch on the power supply do not turn off the electrical current that is supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
Page 246 Watch the procedure. A video of the installation process is available: • YouTube • Youku Figure 109. Riser for slots 16 and 17 removal Step 1. Loosen the captive screw (item 1 in preceding figure) that secures the riser to the I/O tray board. ThinkSystem SR950 Setup Guide...
Page 247 Step 2. Lift the riser up and out of the I/O tray. After you remove the riser: • If you are removing the riser and are not installing a replacement: 1. Install the screw that secures the I/O tray board to the I/O tray (item 3 in the figure). This screw replaces the captive screw on the rear edge of the riser below the midplane connectors.
Page 248 The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source. ThinkSystem SR950 Setup Guide...
Page 249 Before you install the riser for slot 10 to 15: 1. Make sure that there is no screw (item 2 in following figure) securing the I/O tray board to the I/O tray in a location where a captive riser screw will be installed. 2.
Page 250 2. If any of the adapters in the riser have internal cables, make sure that they are connected before installing the riser in the I/O tray. 3. Install the riser in the I/O tray. See “Install the riser for slot 10 to 15 (riser 2)” on page 244. ThinkSystem SR950 Setup Guide...
Page 251 4. Install the I/O tray in the chassis and connect all cables. See “Install the I/O tray” on page 219. Install the riser for slots 16 and 17 The riser for adapter slots 16 and 17 is in the I/O tray that is accessed from the rear of the server. After installing adapters in the riser, insert the riser in the I/O tray and secure it with the captive screw.
Page 252: Storage Interposer Replacement
The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source. ThinkSystem SR950 Setup Guide...
Page 253 CAUTION: Make sure that all server power cords are disconnected from their power sources before performing this procedure. Before you remove an upper storage interposer: 1. Remove the front cover. See “Remove the front cover” on page 205. 2. Remove the upper compute tray or storage tray. See “Remove a compute tray” on page 188 or “Remove a storage tray”...
Page 254 3. Remove the lower fan cage. See “Remove a fan cage (lower tray)” on page 199. Complete the following steps to remove a lower storage interposer. Watch the procedure. A video of the installation process is available: • YouTube • Youku ThinkSystem SR950 Setup Guide...
Page 255 Figure 115. Lower storage interposer removal Step 1. Disconnect all power and data cables from the storage interposer. Step 2. Slide the RAID card forward to disconnect the RAID card from the storage interposer; then, rotate the RAID card upward. (Leave the three cables connected to the RAID card.) Step 3.
Page 256 The lower storage interposer is in the lower compute tray that is accessed from the front of the server. Insert the storage interposer in the lower compute tray and secure it with the screw; then, connect the RAID card to the storage interposer and install the fan cage and lower compute tray. S002 ThinkSystem SR950 Setup Guide...
Page 257 CAUTION: The power control button on the device and the power switch on the power supply do not turn off the electrical current that is supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
Page 258: Storage Tray Replacement
Before you remove an optional storage tray, remove the front cover. See “Remove the front cover” on page 205. Complete the following steps to remove a storage tray. Watch the procedure. A video of the installation process is available: • YouTube • Youku ThinkSystem SR950 Setup Guide...
Page 259 Figure 118. Storage tray removal to stop position Step 1. Press the button on each release lever; then, simultaneously rotate the release levers until they are perpendicular to the chassis. Step 2. Pull storage tray forward evenly until it stops; then, close the release levers. Step 3.
Page 260 2. Make sure that all internal cables are correctly routed. See “Internal cable routing” on page 36. Complete the following steps to install a storage tray when it is fully removed from the chassis: Watch the procedure. A video of the replacement process is available: • YouTube • Youku ThinkSystem SR950 Setup Guide...
Page 261 Figure 120. Storage tray installation (fully removed) Step 1. Align the storage tray with its opening in the upper bay at the front of the chassis and insert. Step 2. Fully open the storage tray release levers and push the tray into the chassis until it stops. Step 3.
Page 262 ThinkSystem SR950 Setup Guide...
Page 263: Index
4S Performance to 8S Upgrade Kit components 4S-to-8S Upgrade Option server 8-sockets compute tray installing removing replacing configuration 9, 12, 16, 18–19 Configuration - Lenovo ThinkSystem SR950 adapter configure the firmware installing connector replacing battery adapter (slot 1 to 4) drive backplane installing 114, 181...
Page 264 I/O adapter (slots 16 and 17) 117, 186 removing I/O tray hard disk drive backplane (upper tray) LOM adapter (slot 9) 111, 184 installing M.2 backplane 127, 222 installing options M.2 drive removing memory air baffle ThinkSystem SR950 Setup Guide...
Page 265 LCD system information display panel for hard disk drive activity for hard disk drive status for solid state drive status option install power system information microprocessor system locator system-error LEDs processor diagnostic processor-heat-sink module © Copyright Lenovo 2017, 2019...
Page 266 I/O adapter (slots 16 and 17) server I/O tray identification left riser power off LOM adapter (slot 9) power on M.2 backplane rear view M.2 drive server components memory air baffle server setup memory module server setup checklist removing ThinkSystem SR950 Setup Guide...
Page 267 LED System configuration - Lenovo ThinkSystem SR950 solid state drive status LED system reliability guidelines standby system-board connectors power off system-board LEDs static-sensitive devices...
Page 268 ThinkSystem SR950 Setup Guide...

Lenovo ThinkSystem SR950 Setup Manual

Chapter 1. Introduction

Chapter 2. Server Components

Chapter 3. Server Hardware Setup

Chapter 4. System Configuration

Chapter 5. Resolving Installation Issues

Appendix A. Getting Help and Technical Assistance

Appendix B. Component Reference

Index

Quick Links

Related Manuals for Lenovo ThinkSystem SR950

Summary of Contents for Lenovo ThinkSystem SR950

Table of Contents