Huawei FusionServer Pro CH242 V5 Technical White Paper Download

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Huawei FusionServer Pro CH242 V5 Compute

Node

V100R005

Technical White Paper

Issue

Date

2020-07-31

HUAWEI TECHNOLOGIES CO., LTD.

Summary of Contents for FusionServer Pro CH242 V5

Page 1: ...Huawei FusionServer Pro CH242 V5 Compute Node V100R005 Technical White Paper Issue 07 Date 2020 07 31 HUAWEI TECHNOLOGIES CO LTD ...

Page 2: ...cribed in this document may not be within the purchase scope or the usage scope Unless otherwise specified in the contract all statements information and recommendations in this document are provided AS IS without warranties guarantees or representations of any kind either express or implied The information in this document is subject to change without notice Every effort has been made in the prep...

Page 3: ...gh level of risk which if not avoided will result in death or serious injury Indicates a hazard with a medium level of risk which if not avoided could result in death or serious injury Indicates a hazard with a low level of risk which if not avoided could result in minor or moderate injury Indicates a potentially hazardous situation which if not avoided could result in equipment damage data loss p...

Page 4: ...th official release 05 2020 04 20 This issue is the fifth official release 04 2019 08 10 Added the support for Cascade Lake processors 03 2018 12 04 Modified the physical structure 02 2018 11 28 Modified the appearance Modified the physical structure Modified the logical structure Modified technical specifications 01 2018 03 14 This issue is the first official release Huawei FusionServer Pro CH242...

Page 5: ... 3 3 Memory Compatibility 17 5 3 4 Memory Installation Guidelines 19 5 3 5 Memory Installation Positions 20 5 3 6 Memory Protection Technologies 21 5 4 Storage 22 5 4 1 Drive Configurations 22 5 4 2 Drive Numbering 22 5 4 3 Drive Indicators 23 5 4 4 RAID Controller Card 25 5 5 Network 25 5 5 1 LOMs 26 5 6 I O Expansion 27 5 6 1 PCIe Cards 27 5 6 2 PCIe Slot Description 27 5 7 Boards 29 5 7 1 Mainb...

Page 6: ...8 2 Maintenance and Warranty 40 9 System Management 41 10 Certifications 43 A Appendix 45 A 1 Product SN 45 A 2 RAS Features 46 B Glossary 49 B 1 A E 49 B 2 F J 50 B 3 K O 50 B 4 P T 50 B 5 U Z 51 C Acronyms and Abbreviations 52 C 1 A E 52 C 2 F J 53 C 3 K O 54 C 4 P T 55 C 5 U Z 57 Huawei FusionServer Pro CH242 V5 Compute Node Technical White Paper Contents Issue 07 2020 07 31 Copyright Huawei Te...

Page 7: ...ting capability and an ultra large memory It is optimized for virtualization cloud computing high performance computing and compute intensive enterprise applications The CH242 V5 compute nodes are installed in an E9000 chassis and are centrally managed by the management module Figure 1 1 CH242 V5 Huawei FusionServer Pro CH242 V5 Compute Node Technical White Paper 1 Overview Issue 07 2020 07 31 Cop...

Page 8: ...ntel Advanced Vector Extensions 512 Intel AVX 512 significantly accelerates floating point performance for computing intensive applications The Cascade Lake processors support Intel Deep Learning Boost vector neural network instructions VNNI to improve the performance of deep learning applications The CH242 V5 fully configured with 48 LRDIMMs provides supreme speed high availability and a maximum ...

Page 9: ...l service upgrades are available Huawei provides a three year warranty for parts replacement and repair for the servers used outside China Huawei provides a 9 hour a day 5 day a week support program Service requests will be handled the next business day Huawei delivers the repaired or new parts within 45 calendar days after receiving the defective parts Manageability and Security The built in iBMC...

Page 10: ...r than 1 35 V DDR3 RDIMMs SSDs consume 80 less power than HDDs The hexagonal ventilation holes on the compute node provide higher ventilation density than round holes increasing system cooling efficiency Efficient voltage regulator down VRD power supplies for boards minimize the energy loss from DC DC power conversion The server is protected with power capping and power control measures Huawei Fus...

Page 11: ...ptional M 2 SSDs 4 Optional USB flash drive 5 Optional TPM 6 Screw in RAID controller card 7 Optional Supercapacitor 8 Heat sinks 9 Optional M 2 FRUsb 10 Optional M 2 adapterb Huawei FusionServer Pro CH242 V5 Compute Node Technical White Paper 3 Physical Structure Issue 07 2020 07 31 Copyright Huawei Technologies Co Ltd 5 ...

Page 12: ...rt 2 5 inch SAS SATA NVMe drives and M 2 modules and mixed configuration of them b An M 2 module is a 2 5 inch drive module that consists of one M 2 adapter and two M 2 FRUs Huawei FusionServer Pro CH242 V5 Compute Node Technical White Paper 3 Physical Structure Issue 07 2020 07 31 Copyright Huawei Technologies Co Ltd 6 ...

Page 13: ...to 10 4 GT s The mezzanine cards connect to the processors through PCIe buses to provide service ports The Platform Controller Hub PCH has a built in MAC chip and provides two 10 Gbit s ports The storage module consisting of a RAID controller card and a drive backplane connects to the CPUs through PCIe buses Huawei FusionServer Pro CH242 V5 Compute Node Technical White Paper 4 Logical Structure Is...

Page 14: ...tions such as compute node power control slot number acquisition PSU detection and KVM over IP Huawei FusionServer Pro CH242 V5 Compute Node Technical White Paper 4 Logical Structure Issue 07 2020 07 31 Copyright Huawei Technologies Co Ltd 8 ...

Page 15: ... 5 1 1 Appearance Figure 5 1 Front view 1 Slide out label plate with an SN label 2 Ejector levers 3 Ejector release buttons 4 2 5 drivesa 5 Model 6 M 2 FRU 7 M 2 adapter 8 M 2 moduleb Huawei FusionServer Pro CH242 V5 Compute Node Technical White Paper 5 Hardware Description Issue 07 2020 07 31 Copyright Huawei Technologies Co Ltd 9 ...

Page 16: ...at consists of one M 2 adapter and two M 2 FRUs 5 1 2 Indicators and Buttons Positions Figure 5 2 Indicators and buttons on the front panel 1 Power button indicator 2 UID button indicator 3 Health status indicator Huawei FusionServer Pro CH242 V5 Compute Node Technical White Paper 5 Hardware Description Issue 07 2020 07 31 Copyright Huawei Technologies Co Ltd 10 ...

Page 17: ...en the power indicator is steady green you can press this button to power on the device UID UID button indicator The UID button indicator helps identify and locate a device UID indicator Off The device is not being located Blinking blue The device has been located and is distinguished from other devices that have also been located Steady blue The device is being located UID button You can turn on ...

Page 18: ...USB port 2 Port Description Port Type Quantity Description USB port USB 3 0 2 Used to connect to a USB device NOTICE Before connecting an external USB device check that the USB device functions properly The server may operate abnormally if an abnormal USB device is connected 5 1 4 Installation Positions The CH242 V5 is installed in a full width slot in the front of the E9000 chassis An E9000 chass...

Page 19: ...nd CPU2 The same model of processors must be used in a server Contact your local Huawei sales representative or use the Intelligent Computing Compatibility Checker to determine the components to be used Huawei FusionServer Pro CH242 V5 Compute Node Technical White Paper 5 Hardware Description Issue 07 2020 07 31 Copyright Huawei Technologies Co Ltd 13 ...

Page 20: ...can determine the memory module properties based on the label attached to the memory module Figure 5 6 Memory identifier Huawei FusionServer Pro CH242 V5 Compute Node Technical White Paper 5 Hardware Description Issue 07 2020 07 31 Copyright Huawei Technologies Co Ltd 14 ...

Page 21: ... 7 DIMM type R RDIMM L LRDIMM 5 3 2 Memory Subsystem Architecture The CH242 V5 provides 48 memory slots Each processor integrates six memory channels Install DIMMs in primary memory channels first If the primary memory channel is not populated the DIMMs in secondary memory channels cannot be used Table 5 2 Memory channels CPU Memory Channel Memory Slot CPU 1 1A primary DIMM000 1A1 1A DIMM001 1A2 1...

Page 22: ...MM121 2C2 2D primary DIMM130 2D1 2D DIMM131 2D2 2E primary DIMM140 2E1 2E DIMM141 2E2 2F primary DIMM150 2F1 2F DIMM151 2F2 CPU 3 3A primary DIMM200 3A1 3A channel DIMM201 3A2 3B primary DIMM210 3B1 3B channel DIMM211 3B2 3C primary DIMM220 3C1 3C DIMM221 3C2 3D primary DIMM230 3D1 3D DIMM231 3D2 3E primary DIMM240 3E1 3E channel DIMM241 3E2 Huawei FusionServer Pro CH242 V5 Compute Node Technical ...

Page 23: ...e at the same speed which is the smallest value of Memory speed supported by a processor Maximum operating speed of a memory module The DDR4 DIMMs of different types RDIMM and LRDIMM cannot be used together Contact your local Huawei sales representative or use the Intelligent Computing Compatibility Checker to determine the components to be used The memory can be used with Intel Xeon Scalable Skyl...

Page 24: ...ad as a single rank RDIMM on a memory bus DDR4 DIMMs of different specifications capacity bit width rank and height can be used together for capacity expansion purposes However the memory Reliability Availability and Serviceability RAS features may be affected Observe the following rules when you need to use different types of DIMMs in a compute node RDIMMs and LRDIMMs cannot be used together Do n...

Page 25: ...d c DPC DIMM per channel indicates the number of DIMMs per channel d If the Cascade Lake processor is used the maximum operating speed of a DIMM can reach 2933 MT s If the Skylake processor is used the maximum operating speed of a DIMM can reach 2666 MT s only 5 3 4 Memory Installation Guidelines Observe the following when configuring DDR4 DIMMs Install DIMMs only when corresponding processors are...

Page 26: ...processor configuration each processor must have a valid memory mirroring configuration Memory scrubbing mode Comply with the general installation guidelines 5 3 5 Memory Installation Positions A CH242 V5 supports a maximum of 48 DDR4 DIMMs To maximize the performance balance the total memory capacity between the installed processors and load the channels similarly whenever possible Figure 5 7 Mem...

Page 27: ...es 4 processors 5 3 6 Memory Protection Technologies The following memory protection technologies are supported ECC Full mirroring Address range mirroring Huawei FusionServer Pro CH242 V5 Compute Node Technical White Paper 5 Hardware Description Issue 07 2020 07 31 Copyright Huawei Technologies Co Ltd 21 ...

Page 28: ... 2 4 and 6 support SAS SATA NVMe drives M 2 FRUs can be installed only in slots 0 to 7 1 x RAID controller card a Only 2 5 inch drives fit into the front slots b Mixed configuration of M 2 modules and SAS SATA NVMe drives is supported Contact your local Huawei sales representative or use the Intelligent Computing Compatibility Checker to determine the components to be used 5 4 2 Drive Numbering SA...

Page 29: ...g at 4 Hz Off Data is being read or written normally or data on the primary drive is being rebuilt Steady on Blinking at 1 Hz The drive is being located Blinking at 1 Hz Blinking at 1 Hz The data on the secondary drive is being rebuilt Off Steady on A member drive in the RAID array is removed Steady on Steady on The drive is faulty Huawei FusionServer Pro CH242 V5 Compute Node Technical White Pape...

Page 30: ...inking green Data is being read written or synchronized Steady green The M 2 FRU is inactive NVMe Drive Indicators Figure 5 14 NVMe drive indicators If the VMD function is enabled and the latest VMD driver is installed the NVMe drives support surprise hot swap Table 5 7 Description of NVMe drive indicators VMD enabled Activity Indicator Green Fault Indicator Yellow Description Off Off The NVMe dri...

Page 31: ...rking properly Blinking at 2 Hz Off Data is being read from or written to the NVMe drive Off Blinking at 2 Hz The NVMe drive is being located or hot swapped Off Blinking at 0 5 Hz The hot removal process is complete and the NVMe drive is removable Steady on Off Steady on The NVMe drive is faulty 5 4 4 RAID Controller Card The RAID controller card supports RAID configuration RAID level migration an...

Page 32: ...e network ports on mezzanine cards Powering off the compute node forcibly will make the WOL function of the LOM ports invalid If flow control is enabled for a LOM port the switch module connected to the LOM port must also have flow control enabled Table 5 9 I O modules supported by the LOM I O Module I O Module Slot LOM Remarks CX916 2X 3X 1E 4E The LOM cannot communicate with the I O modules in s...

Page 33: ... The PCIe slots mapping to a vacant CPU socket are unavailable Table 5 10 PCIe slot description PCIe Slot Displa y on BMC CPU PCIe Stand ards Conn ector Width Bus Width Port No Ro ot Por t B D F De vic e B D F Slot Size RAID contro ller card CPU 1 PCIe 3 0 x8 x8 Port1 A 08 00 0 09 00 0 LOM CPU 1 PCIe 3 0 x8 x8 Port1 C 08 02 0 0c 00 00 Mezz 1 CPU 1 PCIe 3 0 x16 or two x8 x16 or two x8 Port2 A 44 00...

Page 34: ... e2 00 0 e2 02 0 e3 00 0 e4 00 0 PCIe riser 1 PCIe riser card 1 CPU 4 PCIe 3 0 x16 x16 Port1 A 5d 00 0 5e 00 0 HHHL PCIe SSD 0 disk0 CPU 4 PCIe 3 0 x4 x4 Port3 A f1 00 00 f2 0 0 0 2 5 drive PCIe SSD 2 disk2 CPU 4 PCIe 3 0 x4 x4 Port3 B f1 01 00 f3 0 0 0 2 5 drive PCIe SSD 4 disk4 CPU 4 PCIe 3 0 x4 x4 Port3 C f1 02 00 f4 0 0 0 2 5 drive PCIe SSD 6 disk6 CPU 4 PCIe 3 0 x4 x4 Port3 D f1 02 00 f5 0 0 ...

Page 35: ...gured with PCIe devices or if a PCIe card with a PCI bridge is configured Root Port B D F indicates the B D F of an internal PCIe root port of the processor Device B D F indicates the B D F displayed on the OS of an onboard or extended PCIe device 5 7 Boards 5 7 1 Mainboard Figure 5 16 CH242 V5 mainboard 1 USB 3 0 ports 2 SoftRAID key connectora Huawei FusionServer Pro CH242 V5 Compute Node Techni...

Page 36: ...zzanine card 3 connector 12 Drive cage 13 RAID controller card connectors 14 PCIe riser card connector 15 BIOS battery 16 CPU3 OPA sideband signal port 17 TPM connector 18 HLY indicator 19 UID button indicator 20 Power button indicator a The port is reserved Huawei FusionServer Pro CH242 V5 Compute Node Technical White Paper 5 Hardware Description Issue 07 2020 07 31 Copyright Huawei Technologies ...

Page 37: ...controller and six memory channels Built in PCIe controller supporting PCIe 3 0 and 48 lanes per processor Three UPI buses between processors providing up to 10 4GT s transmission per channel Up to 28 cores 2 7 GHz Max 3 8 GHz four cores Min 1 375 MB L3 cache per core Max 205 W TDP NOTE The preceding information is for reference only Use the Intelligent Computing Compatibility Checker to obtain sp...

Page 38: ...y Checker to obtain information about the specific RAID controller cards supported The RAID controller card supports RAID configuration RAID level migration and drive roaming The RAID controller card does not occupy a standard PCIe slot For details about the RAID controller card see Huawei V5 Server RAID Controller Card User Guide NOTE If the BIOS is in legacy mode 4Kn drives 4 KB sectors in physi...

Page 39: ... Huawei proprietary PCIe SSD cards to bolster I O performance for applications such as searching caching and download services NOTE The preceding information is for reference only Use the Intelligent Computing Compatibility Checker to obtain specific information Ports Supports a variety of ports Ports on the front panel Two USB 3 0 ports Built in port One USB 3 0 port NOTE The maximum dimensions H...

Page 40: ...ange rate 20 h Altitude Operating altitude 3050 m 10006 44 ft If the server complies with ASHRAE Class A2 the maximum operating temperature decreases by 1 C 1 8 F for every increase of 300 m 984 25 ft in altitude above 900 m 2952 76 ft If the server complies with ASHRAE Class A3 the maximum operating temperature decreases by 1 C 1 8 F for every increase of 175 m 574 15 ft in altitude above 900 m 2...

Page 41: ...tegory Description Dimensions H x W x D 60 46 mm x 423 mm x 537 2 mm 2 38 in x 16 65 in x 21 15 in Weight in full configuration Product 16 kg to 17 kg 35 28 lb to 37 49 lb Packing material weight 3 kg 6 61 lb Power consumption The power consumption parameters vary with hardware configurations including the configurations complying with EU ErP Use the Intelligent Computing Product Power Calculator ...

Page 42: ...c software and hardware may cause performance inconsistency between the application layer and test software layer If the customer has requirements on the performance of specific application software contact Huawei sales personnel to apply for POC tests in the pre sales phase to determine detailed software and hardware configurations If the customer has requirements on hardware performance consiste...

Page 43: ...forklift Take protective measures if a Class A product is used in residential areas as it is likely to cause radio interference Personal Safety Only personnel certified or authorized by Huawei are allowed to install the hardware Stop any operation that may cause personal injury or equipment damage report the problem to a project supervisor immediately and take protective measures Do not operate th...

Page 44: ... 8 2 Conductive objects to be removed Figure 8 3 shows how to wear an ESD wrist strap a Secure the ESD wrist strap around your wrist b Fasten the strap buckle and ensure that the ESD wrist strap is in contact with your skin c Insert the ground terminal attached to the ESD wrist strap into the jack on the grounded rack or chassis Huawei FusionServer Pro CH242 V5 Compute Node Technical White Paper 8...

Page 45: ...andles of the installed modules such as the PSUs fan modules drives and the mainboard Handle the equipment with care Exercise caution when using tools that could cause personal injury If the device is configured with active and standby PSUs connect power cables of active and standby PSUs to different power distribution units PDUs to ensure reliable system operating Properly ground a device before ...

Page 46: ...a number of organizations Table 8 1 Maximum weight one person is permitted to carry Organization Weight kg lb European Committee for Standardization CEN 25 55 13 International Organization for Standardization ISO 25 55 13 National Institute for Occupational Safety and Health NIOSH 23 50 72 Health and Safety Executive HSE 25 55 13 General Administration of Quality Supervision Inspection and Quarant...

Page 47: ...text console redirection Remote virtual media IPMI SNMP Common information model CIM Redfish Browser based login Specifications Table 9 1 iBMC specifications Feature Description Management interface Integrates with any standard management system through the following interfaces or protocols IPMI CLI HTTPS SNMP Redfish Fault detection Detects and accurately locates faults in hardware for example an...

Page 48: ...tions Fault reproduction Reproduces faults to help diagnose them quickly Screen snapshots and screen videos Allows users to view screenshots and videos without login facilitating routine preventive maintenance inspection PMI Black Box Allows users to enable or disable the black box function and download black box data DNS LDAP Supports domain management and directory services significantly simplif...

Page 49: ...EN 55024 2010 CISPR 24 2010 ETSI EN 300 386 V1 6 1 2012 ETSI ES 201 468 V1 3 1 2005 China RoHS SJ T 11363 2006 SJ T 11364 2006 GB T 26572 2011 China China Environmental Labeling GB T24024 2001 idt ISO14024 1999 HJ 2507 2011 Australia C tick AS NZS CISPR22 2009 America UL UL 60950 1 America FCC FCC Part 15 Class A Huawei FusionServer Pro CH242 V5 Compute Node Technical White Paper 10 Certifications...

Page 50: ...1 General Requirements Canada IC ICES 003 Class A Nigeria SONCAP IEC 60950 1 2005 2nd Edition A1 2009 EN 60950 1 2006 A11 2009 A1 2010 A12 2011 Kingdom of Saudi Arabia KSA SASO IEC 60950 1 2005 2nd Edition A1 2009 EN 60950 1 2006 A11 2009 A1 2010 A12 2011 Global CB IEC 60950 1 Japan VCCI VCCI V 4 2012 Huawei FusionServer Pro CH242 V5 Compute Node Technical White Paper 10 Certifications Issue 07 20...

Page 51: ...Table A 1 SN description Callout No Description 1 SN ID two characters which is 21 2 Material identification code 8 characters that is the processing code 3 Vendor code two characters 10 indicates Huawei and other values indicate outsourcing vendors Huawei FusionServer Pro CH242 V5 Compute Node Technical White Paper A Appendix Issue 07 2020 07 31 Copyright Huawei Technologies Co Ltd 45 ...

Page 52: ...uct name A 2 RAS Features The server supports a variety of Reliability Availability and Serviceability RAS features You can configure these features for better RAS For details about how to configure RAS features see Huawei Server Purley Platform BIOS Parameter Reference Table A 2 RAS features Module Feature Description CPU Corrected Machine Check Interrupt Corrects error triggered interruption DIM...

Page 53: ...des cyclic redundancy check CRC protection for UPI packets to improve system reliability System Core Disable for Fault Resilient Boot FRB Isolates a faulty CPU core during startup to improve system reliability and availability Corrupt Data Containment Mode Identifies the memory storage unit that contains corrupted data to minimize the impact on the running programs and improve system reliability S...

Page 54: ...of band system collects onsite data to facilitate fault analysis and locating and improve system serviceability BIOS Abstraction Layer for Error Handling The BIOS processes errors and reports the error information to the OS and the server in compliance with specifications to improve system serviceability BIOS based Predictive Failure Analysis PFA The BIOS provides physical unit information for DIM...

Page 55: ...he objects E ejector lever A part on the panel of a device used to facilitate installation or removal of the device Ethernet A baseband local area network LAN architecture developed by Xerox Corporation by partnering with Intel and DEC Ethernet uses the Carrier Sense Multiple Access Collision Detection CSMA CD access method and allows data transfer over various cables at 10 Mbit s The Ethernet spe...

Page 56: ...r It seals the front and rear of the chassis to ensure optimal ventilation and electromagnetic compatibility EMC Peripheral Component Interconnect Express PCIe A computer bus PCI which uses the existing PCI programming concepts and communication standards but builds a faster serial communication system Intel is the main sponsor for PCIe PCIe is used only for internal interconnection A PCI system c...

Page 57: ...al computer that provides services for clients over a network system event log SEL A non volatile area and interfaces used to store system events for later fault diagnosis and system recovery B 5 U Z U U A unit defined in International Electrotechnical Commission IEC 60297 1 to measure the height of a cabinet or chassis 1 U 44 45 mm UltraPath Interconnect UPI A point to point processor interconnec...

Page 58: ...tor Extensions B BBU backup battery unit BIOS Basic Input Output System BMC baseboard management controller C CD calendar day CE Conformite Europeenne CIM Common Information Model CLI command line interface Huawei FusionServer Pro CH242 V5 Compute Node Technical White Paper C Acronyms and Abbreviations Issue 07 2020 07 31 Copyright Huawei Technologies Co Ltd 52 ...

Page 59: ...Computer Manufacturer Association EDB Execute Disable Bit EN European Efficiency ERP enterprise resource planning ETS European Telecommunication Standards C 2 F J F FB DIMM Fully Buffered DIMM FC Fiber Channel FCC Federal Communications Commission FCoE Fibre Channel over Ethernet FTP File Transfer Protocol G GE Gigabit Ethernet Huawei FusionServer Pro CH242 V5 Compute Node Technical White Paper C ...

Page 60: ...net Data Center IEC International Electrotechnical Commission IEEE Institute of Electrical and Electronics Engineers IGMP Internet Group Message Protocol IOPS input output operations per second IP Internet Protocol IPC intelligent power capability IPMB Intelligent Platform Management Bus IPMI Intelligent Platform Management Interface C 3 K O K KVM keyboard video and mouse Huawei FusionServer Pro C...

Page 61: ...ntroller Sideband Interface C 4 P T P PCIe Peripheral Component Interconnect Express PDU power distribution unit PHY physical layer PMBUS power management bus POK power OK PWM pulse width modulation PXE Preboot Execution Environment Q QPI Quick Path Interconnect Huawei FusionServer Pro CH242 V5 Compute Node Technical White Paper C Acronyms and Abbreviations Issue 07 2020 07 31 Copyright Huawei Tec...

Page 62: ...ngle device data correction SERDES serializer deserializer SGMII serial gigabit media independent interface SMI serial management interface SMTP Simple Mail Transfer Protocol SNMP Simple Network Management Protocol SOL serial over LAN SONCAP Standards Organization of Nigeria Conformity Assessment Program SSD solid state drive SSE Streaming SIMD Extensions T TACH tachometer signal TBT Turbo Boost T...

Page 63: ...terface UID unit identification light UL Underwriter Laboratories Inc USB Universal Serial Bus V VCCI Voluntary Control Council for Interference by Information Technology Equipment VGA Video Graphics Array VLAN virtual local area network VRD voltage regulator down W WEEE waste electrical and electronic equipment WSMAN Web Service Management Huawei FusionServer Pro CH242 V5 Compute Node Technical W...

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