H3C UniServer R4950 G6 Manual
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H3C UniServer R4950 G6 Manual

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H3C UniServer R4950 G6
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Copyright © 2023 New H3C Technologies Co., Ltd. All rights reserved.
No part of this manual may be reproduced or transmitted in any form or by any means without prior written consent of
New H3C Technologies Co., Ltd.
Except for the trademarks of New H3C Technologies Co., Ltd., any trademarks that may be mentioned in this document
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Summary of Contents for H3C UniServer R4950 G6

  • Page 1 No part of this manual may be reproduced or transmitted in any form or by any means without prior written consent of New H3C Technologies Co., Ltd. Except for the trademarks of New H3C Technologies Co., Ltd., any trademarks that may be mentioned in this document are the property of their respective owners.

  • Page 2: Table Of Contents

    Contents Overview · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 1 Product features ·...
  • Page 3 Installation guidelines · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 39 Processors ·...

  • Page 4: Overview

    Overview H3C UniServer R4950 G6 is a 2U dual-processor enterprise-level high-performance rack server developed by H3C. It is supports AMD EPYC Genoa, Genoa-X, and Bergamo processors. The server offers strong computing power, high reliability, flexible scalability, and easy management and deployment, making it suitable for virtualization, cloud computing, high-performance computing, and AI applications.

  • Page 5: Product Features

    Product features Higher performance and security features • Supports the AMD EPYC 9004 series processors, with a maximum of 128 cores, a maximum frequency of 4.1GHz, and 384MB cache per processor. • With support for dual processors, a single server can support up to 256 cores and 512 threads, maximizing the server's multi-threading capabilities and parallel processing performance.

  • Page 6: Intuitive And Configurable Management System

    • Uses the intelligent RAID controller that support high-speed caching, significantly improving I/O performance. Intuitive and configurable management system • The HDM system management module can be used to monitor system status and provide remote management functions. • The UniSystem management software allows for diskless installation and deployment of servers, with device drivers that can be upgraded online.

  • Page 7: Customized Services

    Customized services H3C independently researches, designs and owns intellectual property rights for its products. Our strong production and supply capabilities ensure rapid delivery of customized solutions. Server topology • R4950 G6 supports two AMD EPYC 9004 processors and up to 24 DDR5 DIMMs. The processors are interconnected by four XGMI buses, each with 16 lanes.

  • Page 8: Server Specifications

    Server specifications Components Figure 1 Server components Item Description (1) Chassis access panel Processor Cools the processor. heatsink network Network adapter installed onto the OCP network adapter connector on the system adapter board. Integrates memory and PCIe controllers to provide data processing capabilities for (4) Processor the server.
  • Page 9 installed, such as processor, memory, and fan. It is integrated with basic server components, including the BIOS chip and PCIe connectors. (12) Rear drive Provides power and data channels for drives at the server rear. backplane (13) Rear drive cage Installed at the server rear to accommodate drives.

  • Page 10: Front Panel

    Front panel Front panel view of the server Figure 2 8LFF front panel Table 1 8LFF front panel description Item Description USB 3.0 connector Drive or LCD mart management module (optional) Serial label pull tab Dedicated management connector USB 3.0 connector VGA connector Figure 3 12LFF front panel Table 2 12LFF front panel description...
  • Page 11 Item Description VGA connector *: Drive types supported by the server vary by drive backplane configuration. For more information, see "Drive backplanes." Figure 4 8SFF front panel Table 3 8SFF front panel description Item Description Bay 1: 8SFF drives (optional)* Bay 2: 8SFF drives (optional)* Bay 3: 8SFF drives (optional)* USB 3.0 connector...

  • Page 12: Leds And Buttons

    Table 4 25SFF front panel description Item Description 25SFF drives* USB 3.0 connector Drive or LCD mart management module (optional) Serial label pull tab Dedicated management connector USB 3.0 connector VGA connector *: Drive types supported by the server vary by drive backplane configuration. For more information, see "Drive backplanes."...

  • Page 13: Ports

    Button/LED Status • Steady green—The system is operating correctly or a minor alarm is present. • Flashing green (4 Hz)—HDM is initializing. • Flashing amber (1 Hz)—A major alarm is present. Health LED • Flashing red (1 Hz)—A critical alarm is present. If a system alarm is present, log in to HDM to obtain more information about the system running status.

  • Page 14: Rear Panel

    Rear panel Rear panel view Figure 7 Rear panel components Table 7 Rear panel description Item Description PCIe slots 1 through 3 PCIe slots 4 through 6 PCIe slots 7 and 8 PCIe slots 9 and 10 Power supply 2 Power supply 1 OCP 3.0 network adapter/Serial &...
  • Page 15 Figure 8 Rear panel components (Processor liquid-cooled module with male connector) Figure 9 Rear panel components (Processor liquid-cooled module with hose connector) Figure 10 Description of rear panel components (CPU liquid-cooled module) Item Description PCIe riser connector 1: PCIe slot 1 to slot 3 PCIe riser connector 2: PCIe slot 4 and slot 5 PCIe riser connector 3: PCIe slot 7 and slot 8 PCIe riser connector 4: PCIe slot 9 and slot 10...

  • Page 16: Leds

    LEDs Figure 11 Rear panel LEDs Table 8 LEDs on the rear panel Status • Steady blue—UID LED is activated. The UID LED can be activated by using the following methods: Press the UID button LED.  Enable UID LED from HDM. ...

  • Page 17: Note

    Port Type Description connection to the server has failed. • Establish a GSM modem or encryption lock connection. NOTE: For more information about the serial & DSD module, "Serial & DSD module." Connects the following devices: • USB flash drive. •...
  • Page 18 Table 10 System board components Description Mark OCP 3.0 network adapter connector 2/DSD module OCP2&DSD&UART CARD connector Server management module connector BMC CON TPM/TCM connector PCIe riser connector 1 (for processor 1) RISER1 PCIe x16 Fan connector for OCP 3.0 network adapter 1 OCP1 FAN System battery AUX connector for OCP 3.0 network adapter 1...

  • Page 19: System Maintenance Switch

    MCIO connector C2-P3C (for processor 2) C2-P3C Drive backplane power connector 8 PWR8 Drive backplane power connector 7 PWR7 Drive backplane AUX connector 5 AUX5 Liquid Leakage Detection module connector LEAKDET OCP 3.0 network adapter slot 2 (PCIe expansion connector) OCP2 x8 PCIe riser connector 2 (for processor 2) RISER2 PCIe x16...

  • Page 20: Dimm Slots

    Item Description Remarks settings. switch. Power on the switch and wait for a minimum of 10 seconds. Power off the server and then turn off the switch. Start the server and verify that the POST screen prompts The CMOS defaults were loaded.

  • Page 21: Hdds And Ssds

    HDDs and SSDs Drive numbering The server provides different drive numbering schemes for different drive configurations at the server front and rear, as shown in Figure 15 through Figure Figure 15 Drive numbering for front 25SFF drive configuration Figure 16 Drive numbering for front 12LFF drive configuration Figure 17 Drive numbering for front 8LFF drive configuration Figure 18 Drive numbering for rear 2LFF+4SFF drive configuration Figure 19 Drive numbering for rear 4LFF+2SFF drive configuration...

  • Page 22: Drive Leds

    Figure 20 Drive numbering for rear 2SFF+2SFF+4SFF drive configuration Figure 21 Drive numbering for mid-4LFF drive configuration Drive LEDs The server supports SAS, SATA, and NVMe drives. You can use the LEDs on a drive to identify its status. Figure 22 shows the location of the LEDs on a drive.

  • Page 23: Drive Backplanes

    Table 13 NVMe drive LED description Fault/UID LED status Present/Active LED status Description Flashing amber (4 Hz) The drive is in hot insertion process. Steady green/Flashing green The drive is faulty. Replace the drive Steady amber (4.0 Hz) immediately. Steady green/Flashing green The drive is operating correctly and selected...

  • Page 24: Front 8Sff Unibay Drive Backplane

    Figure 23 8SFF SAS/SATA drive backplane (1) x8 SlimSAS connector (SAS PORT1) (2) AUX connector (AUX) (3) Power connector (PWR) Front 8SFF UniBay drive backplane The PCA-BP-8UniBay-2U-G6 8SFF UniBay drive backplane can be installed at the server front to support eight 2.5-inch SAS/SATA/NVMe drives. Figure 24 8SFF UniBay drive backplane (1) x8 SlimSAS connector (SAS PORT) (2) AUX ( AUX)

  • Page 25: Front 8Lff Sas/Sata Drive Backplane

    Front 8LFF SAS/SATA drive backplane The PCA-BP-8LFF-2U-G6 8LFF SAS/SATA drive backplane can be installed at the server front to support eight 3.5-inch SAS/SATA drives. Figure 25 8LFF SAS/SATA drive backplane (1) X8 Mini-SAS-HD connector (SAS PORT) (2) Power connector (PWR) (3) AUX connector (AUX) Front 12LFF SAS/SATA drive backplane The PCA-BP-12LFF-2U-G6 12LFF SAS/SATA drive backplane can be installed at the server front to...

  • Page 26: Front 12Lff4Sas/Sata+8Unibay Drive Backplane

    Figure 27 12LFF 8SAS/SATA+4UniBay drive backplane (1) MCIO connector A3 (PCIe5.0 x4)(NVMe-A3), supporting NVMe drive 9 (2) x4 SlimSAS connector (SAS PORT 2), managing the last four SAS/SATA drives on the backplane (3) Power connector 2 (PWR 2) (4) AUX connector 1(AUX 1) (5) Power connector 1 (PWR 1) (6) x8 SlimSAS connector (SAS PORT 1), managing the first eight SAS/SATA drives on the backplane (7) MCIO connector A4 (PCIe5.0 x4)(NVMe-A4), supporting NVMe drive 8...

  • Page 27: Front 12Lff Unibay Drive Backplane

    (1) x8 SlimSAS uplink interface (SAS PORT), managing all drives on the backplane (2) x4 SlimSAS downlink interface 3 (SAS EXP3) (3) Power connector 2 (PWR2) (4) MCIO connector B1/B2 (PCIe5.0 x8)(NVMe-B1/B2), supporting NVMe drives 6 and 7 (5) Power connector 1 (PWR1) (6) x8 SlimSAS downlink interface 2 (SAS EXP2) (7) x4 SlimSAS downlink interface 1 (SAS EXP1) (8) AUX connector (AUX)

  • Page 28: Front 25Sff 17Sas/Sata+8Unibay Drive Backplane

    Front 25SFF 17SAS/SATA+8UniBay drive backplane The PCA-BP-25SFF-2U-G6 25SFF drive backplane can be installed at the server front to support twenty-five 2.5-inch SAS/SATA/NVMe drives, including 17 SAS/SATA drives and 8 SAS/SATA/NVMe drives. The drive backplane can use an x8 SlimSAS connector to manage 25 SAS/SATA drives. The drive backplane also integrates an Expander chip and three downlink interfaces to connect to other drive backplanes and support more drives.

  • Page 29: Rear 2Lff Sas/Sata Drive Backplane

    Figure 31 Mid 4LFF SAS/SATA drive backplane (1) AUX connector (AUX1) (2) Power connector (PWR1) (3) x4 Mini-SAS-HD connector (SAS PORT1) Rear 2LFF SAS/SATA drive backplane The PCA-BP-2LFF-2U-G6 2LFF SAS/SATA drive backplane is installed at the server rear to support two 3.5-inch SAS/SATA drives.

  • Page 30: Rear 2Sff Sas/Sata Drive Backplane

    Rear 2SFF SAS/SATA drive backplane The PCA-BP-2SFF-2U-G6 2SFF SAS/SATA drive backplane is installed at the server rear to support two 2.5-inch SAS/SATA drives. Figure 34 2SFF SAS/SATA drive backplane (1) Power connector (PWR) (2) x4 Mini-SAS-HD connector (SAS PORT) (3) AUX connector (AUX) Rear 2SFF UniBay drive backplane The PCA-BP-2SFF-2UniBay-2U-G6 2SFF UniBay drive backplane is installed at the server rear to support two 2.5-inch SAS/SATA/NVMe drives.

  • Page 31: Rear 4Sff Sas/Sata Drive Backplane

    (1) Power connector (PWR) (2) x4 Mini-SAS-HD connector (SAS PORT) • x8: Bus bandwidth. Rear 4SFF SAS/SATA drive backplane The PCA-BP-4SFF-2U-G6 4SFF SAS/SATA drive backplane is installed at the server rear to support four 2.5-inch SAS/SATA drives. Figure 36 4SFF SAS/SATA drive backplane (1) x4 Mini-SAS-HD connector (SAS PORT) (2) AUX connector (AUX) (3) Power connector (PWR)

  • Page 32: Riser Cards

    (1) AUX connector (AUX) (2) Power connector (PWR) • x8: Bus bandwidth. Riser cards The server supports the following riser cards: • RC-3FHFL-2U-G6 • RC-3FHHL-2U-G6 • RC-2FHFL-2U-LC-G6 • PCA-R4900-4GPU-G6 • Riser 4 assembly module (accommodating two FHFL modules) • Riser 4 assembly module (accommodating two HHHL modules) •...
  • Page 33 NOTE: • slot 1/4: When the riser card is installed in PCIe riser card slot 1, this slot corresponds to PCIe slot 1. When the riser card is installed in PCIe riser card slot 2, this slot corresponds to PCIe slot 2. This rule applies to all the other PCIe riser card slots.

  • Page 34: Rc-3Fhhl-2U-G6

    RC-3FHHL-2U-G6 Figure 40 RC-3FHHL-2U-G6 (1) (1) PCIe5.0 x16 (8,4,2,1) slot 2/5 (2) PCIe5.0 x16 (8,4,2,1) slot 3/6 (3) PCIe5.0 x16 (16,8,4,2,1) slot 1/4* PCIe5.0 x16 (16,8,4,2,1) description: • PCIe5.0: Fifth-generation signal speed. • x16: Connector bandwidth. • (16,8,4,2,1): Compatible bus bandwidth, including x16, x8, x4, x2, and x1. NOTE: slot 1/4: When the riser card is installed in PCIe riser card slot 1, this slot corresponds to PCIe slot 1.
  • Page 35 Figure 41 RC-3FHHL-2U-G6 (2) (4) MCIO connector 1-A (5) MCIO connector 1-C PCIe5.0 x16 (16,8,4,2,1) description: • PCIe5.0: Fifth-generation signal speed. • x16: Connector bandwidth. • (16,8,4,2,1): Compatible bus bandwidth, including x16, x8, x4, x2, and x1.

  • Page 36: Rc-2Fhfl-2U-Lc-G6

    RC-2FHFL-2U-LC-G6 Figure 42 RC-2FHFL-2U-LC-G6 (1) Figure 43 RC-2FHFL-2U-LC-G6 (2)

  • Page 37: Pca-R4900-4Gpu-G6

    (2) PCIe5.0 x16 (16,8,4,2,1)slot 4 (1) PCIe5.0 x16 (16,8,4,2,1) slot 5 (4) MCIO connector 2-C (3) GPU power connector (6) MCIO connector 1-A (5) MCIO connector 2-A (7) MCIO connector 1-C PCIe5.0 x16 (8,4,2,1) description: • PCIe5.0: Fifth-generation signal speed. •...

  • Page 38: Riser 4 Assembly Module (Accommodating Two Fhfl Pcie Modules)

    (7) GPU module power connector (8) GPU module power connector Figure 46 PCA-R4900-4GPU-G6 (3) (9) PCIe5.0 x16 (16,8,4,2,1) slot 6 (10) PCIe5.0 x16 (16,8,4,2,1) slot 3 PCIe5.0 x16 (16,8,4,2,1) description: • PCIe5.0: Fifth-generation signal speed. • x16: Connector bandwidth. • (16,8,4,2,1): Compatible bus bandwidth, including x16, x8, x4, x2, and x1.

  • Page 39: Riser 4 Assembly Module (Accommodating Two Hhhl Pcie Modules)

    Figure 47 Riser 4 assembly module (accommodating two FHFL PCIe modules) PCIe interface cable S2 from slot 9 (connected to connector C2-P2C on the system board) PCIe interface cable S1 from slot 10 (connected to connector C2-P3A on the system board) PCIe5.0 x16 (16,8,4,2,1) in slot 10 PCIe5.0 x16 (16,8,4,2,1) in slot 9 PCIe interface cable S2 from slot 10 (connected to connector C2-P3C on the system board)

  • Page 40: Riser 3 Assembly Module (Accommodating Two Hhhl Pcie Modules)

    PCIe5.0 x8 (8,4,2,1) in slot 10 PCIe5.0 x8 (8,4,2,1) in slot 9 Power connector S2 from slot 9 (connected to connector PWR8 on the system board) PCIe interface cable S1 from slot 9 (connected to connector C2-P2A on the system board) PCIe5.0 x16 (16, 8,4,2,1) description: •...

  • Page 41: Liquid Cooling System (For Liquid-Cooled Model)

    Figure 50 Fan module layout Liquid cooling system (for liquid-cooled model) H3C's cold plate-based liquid cooling system (referred to as cold plate-based liquid cooling system or liquid cooling system) uses cold plate-based liquid cooling technology to efficiently cool servers, improving their performance and stability. It significantly reduces Power Usage Effectiveness (PUE), showing the advantages of liquid cooling in terms of green energy efficiency.

  • Page 42: Installation Guidelines

    You can install one or two processors. If liquid-cooled modules are installed, you must install two processors. • To avoid damage to a processor or the system board, only H3C authorized or professional server engineers can install, replace, or remove a processor. •...

  • Page 43: M.2 Ssds

    If you are using the drives to create a RAID, follow these restrictions and guidelines: • For efficient use of storage, use drives that have the same capacity to build a RAID. If the drives have different capacities, the lowest capacity is used across all drives in the RAID. A drive with extra capacity cannot be used to build other RAIDs.

  • Page 44: Server Management Module

    • When configuring 2 SATA M.2 SSD drives on the M.2 SSD RAID controller, to ensure reliability when creating a RAID array, install 2 SATA M.2 SSDs of the same model as a best practice. • The SATA M.2 RAID controller supports RAID 0 and RAID 1 for SATA M.2 SSD drives. For RAID configuration methods, see the storage controller user manual.

  • Page 45: Serial & Dsd Module

    Figure 54 Server management module (1) VGA connector (2) Two USB 3.0 connectors (3) HDM dedicated management interface (4) UID LED (5) HDM serial port (6) iFIST module (optional) (7) NCSI connector Serial & DSD module The serial & DSD module is installed in the slot on the server rear panel. The module provides two SD slots and forms RAID 1 by default.

  • Page 46: Riser Cards And Pcie Modules

    Figure 55 Serial & DSD module Table 14 Component description Item Description SD card slot 1 SD card slot 2 Serial port Riser cards and PCIe modules Typically, the PCIe modules are available in the following standard form factors: • LP—Low profile.

  • Page 47: Riser Card And Pcie Module Compatibility

    You can install a PCIe module in a PCIe slot for a larger-sized PCIe module. For example, an LP PCIe module can be installed in a slot for an FHFL PCIe module. A PCIe slot can supply power to the installed PCIe module if the maximum power consumption of the module does not exceed 75 W.
  • Page 48 Connected MCIO connector C2-P3A, MCIO providing an x16 PCIe Proce SLOT 1-A connector link for slot 4 with x8 ssor 2 MCIO connector SLOT Connected MCIO connector C2-P3C on system board, MCIO Proce SLOT 1-C providing an x16 PCIe connector ssor 2 link for slot 4 with x8 MCIO connector SLOT...
  • Page 49 Connected MCIO connector C2-P2A, MCIO providing an x16 PCIe Proce SLOT 1-A connector link for slot 1 with x8 ssor 2 MCIO connector SLOT 1-C. Connected MCIO connector C2-P2C on system board, MCIO Proce SLOT 1-C providing an x16 PCIe connector ssor 2 link for slot 1 with x8...
  • Page 50 PCIe PCIe module PCIe slots PCIe slot slot Proc Riser card Riser card for PCIe slot on a riser connector power esso model location card description capabi connector lity Connector MCIO interface C2-P3A on the system board, and work with MCIO the other x8 Proce...

  • Page 51: Storage Controllers And Power Fail Safeguard Modules

    Storage controllers and power fail safeguard modules Storage controllers The server supports standard storage controllers that come in a standard PCIe form factor and typically require a riser card for installation. Powerfail safeguard modules For some storage controllers, you can order a powerfail safeguard module to prevent data loss when power outage occurs.

  • Page 52: Network Adapters

    backplane and the controller in a higher-numbered slot to the front drive backplane. For information about slot locations, see "Rear panel view." Table 19 to identify the supercapacitor available for a storage controller. Table 19 Standard storage controller and supercapacitor compatibility matrix Standard storage controller Supercapacitor Supercapacitor installation location...

  • Page 53: Power Supplies

    1, 2, 3, 4, 5, 6, 9 slot 1, 2, 3, 4, 5, 6, 7, 8 Power supplies • To avoid damage to hardware, use only H3C approved power supplies. • The server supports 1+1 power supply redundancy. •...

  • Page 54: Fan Modules

    For more information about the specifications of power supplies, see the power supply manuals for them. Fan modules The server must be fully configured with fan modules of the same model. The server supports both single-rotor FAN-8038-2U-G6 fan module and dual-rotor FAN-8056-2U-G6 fan module.

  • Page 55: Product Specifications

    The graphics chip (model AST2600) is integrated in the BMC management chip to Integrated provide a maximum resolution of 1920 × 1200@60Hz (32bpp) graphics • HDM agentless management tool (with independent management port) and H3C Management UniSystem management software software •...

  • Page 56: Operating Environment Requirements

    • Support hot-swappable redundant fans heat dissipation Mixture Of deionized water, ethylene glycol, and propylene glycol Coolant liquid The processor cold plate adopts a brazing process, ensuring high sealing reliability. Cold plate The quick connector is used as the connection head between the liquid cooling module Quick and the manifold.

  • Page 57: Component Compatibility

    • Up to 400W thermal design power. NOTE: • For information about processors that are available for purchase, contact the H3C sales representative. • Processors configured in a server must be the same model. • For more information about the processors, visit the website at http://www.amd.com.

  • Page 58: Guidelines

    Figure 56 DDR DIMM rank classification label Table 23 DIMM rank classification label description Callout Description Remarks Options include: • 32GB. Capacity • 64GB. Options include: • 1R—One rank (Single-Rank). • 2R—Two ranks (Dual-Rank). A 2R DIMM is equivalent to two 1R DIMMs. Number of ranks •...

  • Page 59: Storage

    Processor Memory type @ frequency AMD Bergamo EYPC DDR5 @4800MHz DIMM frequency You can query the memory frequency by selecting Memory Module and query the maximum supported memory frequency by selecting Processor. The actual operating memory frequency is equal to the lesser of the memory frequency or the maximum memory frequency supported by the processors.

  • Page 60: I/O Expansion

    The R4950 G6 provides the following types of PCIe extended modules. You can choose devices based on required module types and rates. • FC HBA modules • Network adapters • SSD expander modules For information about the system components that are available for purchase, contact the H3C sales representative.

  • Page 61: Intelligent Management

    REPO—Repository, a collection of server firmware and drivers, including but not limited to firmware and drivers for network adapters and storage controllers. REPO is used for upgrading servers and their components. In combination with other New H3C software, REPO covers various customer upgrade scenarios, including single node online or offline upgrade and bulk online or offline upgrades.
  • Page 62 REPO to HDM. • Supports various upgrade scenarios including offline upgrade, bulk firmware upgrade, and bulk driver upgrade by mounting REPO to FIST. For more information about other management software, see H3C HDM Technology White Paper at: http://www.h3c.com/en/Support/Resource_Center/EN/Home/Severs/00- Public/Trending/Technology_White_Papers/H3C_HDM_Technology_WP/.

  • Page 63: Maintenance

    (such as failure report and hardware repair report), sales and purchase consulting, service and policy consulting, and complaint and suggestion platforms. After receiving the network or system failure report, H3C engineers analyze and deal Remote technical with the failures remotely to remove the issues in time. Remote technical support support includes telephone contact and remote access.

  • Page 64: Certifications

    Certifications Country/Region Certificate Standard GB4943.1-2011 China GB17625.1-2012 GB/T 9254-2008 (Class A) China CECP CQC3135-2011 China SEPA HJ 2507-2011...

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