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Hard'Server 1288H V6 Server User Guide Contents 7.2.6.5 Connecting an IB Cable ............................98 7.2.6.6 Connecting a USB Type-C Cable ........................100 7.2.6.7 Connecting a USB Device ..........................100 7.2.6.8 Connecting a Serial Cable ........................... 101 7.2.6.9 Connecting PSU Cables ............................102 7.2.6.9.1 Connecting the AC PSU Cable ........................
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Hard'Server 1288H V6 Server User Guide Contents 9.4.2.4 Red Hat ................................146 9.5 Logging In to the Server CLI ............................ 148 9.5.1 Logging In to the CLI Using PuTTY over a Network Port..................148 9.5.2 Logging In to the CLI Using PuTTY over a Serial Port ..................150 9.6 Managing VMD ................................
Hard'Server 1288H V6 Server User Guide About This Document About This Document Overview This document describes the Hard'Server 1288H V6 in terms of its appearance, functions, structure, hardware installation, basic configuration, OS installation methods, and troubleshooting. Intended Audience This document is intended for: ⚫...
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Hard'Server 1288H V6 Server User Guide About This Document Change History Issue Date Description 2021-12-24 This issue is the first official release. 2021-12-24 viii...
1.2 Physical Structure 1.3 Logical Structure 1.1 Overview Hard'Server 1288H V6 (1288H V6) is a new-generation 1U 2-socket rack server designed for Internet, Internet Data Center (IDC), cloud computing, enterprise, and telecom applications. The 1288H V6 is ideal for IT core services, cloud computing, virtualization, high-performance computing, distributed storage, big data processing, enterprise or telecom service applications, and other complex workloads.
Hard'Server 1288H V6 Server User Guide 1 Overview Figure 1-1 Physical structure of a 1288H V6 with 8 x 2.5" drives (example) 1.2 Physical Structure Figure 1-2 Physical structure of a server with 8 x 2.5" drives (example) I/O module 1...
Hard'Server 1288H V6 Server User Guide 1 Overview Chassis PSUs Air duct Fan module brackets Fan modules Intrusion sensor Front-drive backplane Front drives Built-in DVD drive Indicator board Processor heat sinks Processors Cable organizers Mainboard BMC card OCP 3.0 network adapters...
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Hard'Server 1288H V6 Server User Guide 1 Overview ⚫ The CPUs (processors) interconnect with each other through three UPI links at a speed of up to 11.2 GT/s. ⚫ The PCIe riser card connects to the processors through PCIe buses to provide ease of expandability and connection.
Hard'Server 1288H V6 Server User Guide 2 Hardware Description ⚫ 8 x 2.5" Drive Configuration Figure 2-2 Front view Drive (Optional) Built-in DVD drive Label with SN ⚫ 10 x 2.5" drive configuration Figure 2-3 Front view Drive Slide-out label plate (with an SN label) 2.1.2 Indicators and Buttons...
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Hard'Server 1288H V6 Server User Guide 2 Hardware Description indicator indicator Power button/indicator UID button/indicator iBMC direct connect management port indicator ⚫ 8 x 2.5" drive configuration Figure 2-5 Indicators and buttons on the front panel Power button/indicator UID button/indicator...
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Hard'Server 1288H V6 Server User Guide 2 Hardware Description Indicator and Button Descriptions Table 2-1 Description of indicators and buttons on the front panel Indicator and Silkscreen Description Button ⚫ Fault diagnosis ---: The device is operating properly. ⚫ Error code: A component is faulty.
Hard'Server 1288H V6 Server User Guide 2 Hardware Description Silkscreen Indicator and Description Button The UID button/indicator helps identify and locate a button/indicator device. UID indicator: ⚫ Off: The device is not being located. ⚫ Blinking or steady blue: The device is being located.
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Hard'Server 1288H V6 Server User Guide 2 Hardware Description Figure 2-7 Ports on the front panel iBMC direct connect USB 3.0 port management port VGA port ⚫ 8 x 2.5" drive configuration Figure 2-8 Ports on the front panel iBMC direct connect USB 3.0 port...
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Hard'Server 1288H V6 Server User Guide 2 Hardware Description Port Description Table 2-2 Ports on the front panel Port Type Quantity Description Note VGA port DB15 Used to connect a display terminal, such as a monitor or KVM. iBMC direct...
Hard'Server 1288H V6 Server User Guide 2 Hardware Description Port Type Quantity Description Note external power supply is required. Note: The number of ports varies depending on server configuration. This table lists the maximum number of ports in different configurations.
Hard'Server 1288H V6 Server User Guide 2 Hardware Description 2.2.2 Indicators and Buttons Indicator Positions Figure 2-11 Indicators on the rear panel Data transmission status Connection status indicator indicator for the management for the management network network port port Serial port indicators...
Hard'Server 1288H V6 Server User Guide 2 Hardware Description Silkscreen Indicator Description mode. ⚫ Blinking green at 4 Hz: The firmware is being upgraded online. ⚫ Steady green: The power input and output are normal. ⚫ Steady orange: The input is normal but there is no output.
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Hard'Server 1288H V6 Server User Guide 2 Hardware Description Port Description Table 2-4 Ports on the rear panel Port Type Quantity Description Management RJ45 iBMC management network port, network port which is used to manage the server. NOTE The management network port is a GE port that supports 100 Mbit/s and 1000 Mbit/s auto-negotiation.
Hard'Server 1288H V6 Server User Guide 2 Hardware Description 2.3 Processors ⚫ The server supports one or two processors. ⚫ If only one processor is required, install it in socket CPU1. ⚫ Processors of the same model must be used in a server.
Hard'Server 1288H V6 Server User Guide 2 Hardware Description Figure 2-14 Memory identifier Description Example ⚫ Capacity 16 GB ⚫ 32 GB ⚫ 64 GB ⚫ 128 GB ⚫ 256 GB Number of ranks ⚫ 1R: single-rank ⚫ 2R: dual-rank ⚫...
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Hard'Server 1288H V6 Server User Guide 2 Hardware Description Table 2-5 Memory channels Channel Memory Slot CPU 1 A (primary) DIMM000(A) DIMM001(I) B (primary) DIMM010(B) DIMM011(J) C (primary) DIMM020(C) DIMM021(K) D (primary) DIMM030(D) DIMM031(L) E (primary) DIMM040(E) DIMM041(M) F (primary)
Hard'Server 1288H V6 Server User Guide 2 Hardware Description Channel Memory Slot H (primary) DIMM170(H) DIMM171(P) 2.4.1.3 Memory Compatibility Observe the following rules when configuring DDR4 memory modules: ⚫ A server must use DDR4 memory modules of the same part number (P/N code), and the memory speed is the minimum value of the following items: ⚫...
Hard'Server 1288H V6 Server User Guide 2 Hardware Description Parameter Specifications Operating voltage (V) Maximum number of DDR4 DIMMs in a server Maximum DDR4 1024 2048 4096 8192 memory capacity of the server (GB) Actual 1DPC 3200 3200 3200 3200...
Hard'Server 1288H V6 Server User Guide 2 Hardware Description 2.4.1.5 Memory Installation Positions A server supports a maximum of 32 DDR4 memory modules. To maximize performance, balance the total memory capacity between the installed processors and to load the channels similarly whenever possible.
Hard'Server 1288H V6 Server User Guide 2 Hardware Description 2.4.1.6 Memory Protection Technologies The following memory protection technologies are supported: ⚫ ⚫ Memory Mirroring ⚫ Memory Single Device Data Correction (SDDC, +1) ⚫ Failed DIMM Isolation ⚫ Memory Thermal Throttling ⚫...
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Hard'Server 1288H V6 Server User Guide 2 Hardware Description Configuration Front Drive Rear Drive Drive Management Mode SAS/SATA drives. ⚫ ⚫ 8 x 2.5" drive Front drive: 8 x pass-through 2.5" configuration 1 − Slots 0 to 7 support only SATA drives.
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Hard'Server 1288H V6 Server User Guide 2 Hardware Description Configuration Front Drive Rear Drive Drive Management Mode drives. 10 x 2.5" drive ⚫ Front drive: 10 x ⚫ SAS/SATA pass-through 2.5" drive: 1 x configuration 4 screw-in RAID − Slots 0 to 5...
Hard'Server 1288H V6 Server User Guide 2 Hardware Description Configuration Front Drive Rear Drive Drive Management Mode − Slots 4 to 9 drives. support only NVMe drives. 10 x 2.5" drive ⚫ Front drive: 10 x ⚫ I/O module 1: 2 ⚫...
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Hard'Server 1288H V6 Server User Guide 2 Hardware Description Drive No. Drive Number Identified by the iBMC ⚫ 4 x 3.5" drive pass-through configuration Corresponds to 4 x 3.5" drive pass-through configuration 2 in 2.5.1 Drive Configurations . Figure 2-19 Slot Numbers Table 2-9 Slot numbers Drive No.
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Hard'Server 1288H V6 Server User Guide 2 Hardware Description Drive No. Drive Number Identified Drive Number Identified by the iBMC by the RAID Controller ⚫ 8 x 2.5" drive pass-through configuration Corresponds to 8 x 2.5" drive pass-through configuration 1 in 2.5.1 Drive Configurations .
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Hard'Server 1288H V6 Server User Guide 2 Hardware Description Table 2-12 Slot numbers Drive No. Drive Number Identified Drive Number Identified by the iBMC by the RAID Controller ⚫ 10 x 2.5" drive pass-through configuration Corresponds to 10 x 2.5" drive pass-through configuration 1 in 2.5.1 Drive Configurations .
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Hard'Server 1288H V6 Server User Guide 2 Hardware Description Drive No. Drive Number Identified Drive Number Identified by the iBMC by the RAID Controller ⚫ 10 x 2.5" drive pass-through configuration Corresponds to 10 x 2.5" drive pass-through configuration 2 in 2.5.1 Drive Configurations .
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Hard'Server 1288H V6 Server User Guide 2 Hardware Description Figure 2-25 Slot Numbers Table 2-15 Slot numbers Drive No. Drive Number Identified by the iBMC ⚫ 10 x 2.5" drive pass-through configuration Corresponds to 10 x 2.5" drive pass-through configuration 4 and 10 x 2.5" drive pass-through configuration 5 in 2.5.1 Drive Configurations .
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Hard'Server 1288H V6 Server User Guide 2 Hardware Description Drive No. Drive Number Identified Drive Number Identified by the iBMC by the RAID Controller Note Note Note: If the slot is configured with a SAS/SATA drive, the RAID controller card can manage the drive and allocate a number to the drive.
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Hard'Server 1288H V6 Server User Guide 2 Hardware Description Figure 2-28 Slot Numbers Table 2-18 Slot numbers Drive No. Drive Number Identified Drive Number Identified by the iBMC by the RAID Controller Note Note Note Note Note: If the slot is configured with a SAS/SATA drive, the RAID controller card can manage the drive and allocate a number to the drive.
Hard'Server 1288H V6 Server User Guide 2 Hardware Description 2.5.3 Drive Indicators SAS/SATA Drive Indicators Figure 2-29 SAS/SATA drive indicators Table 2-19 SAS/SATA drive indicators Activity Indicator Fault Indicator Description (Green) (Yellow) The drive is not in position. Steady on The drive is detected.
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Hard'Server 1288H V6 Server User Guide 2 Hardware Description Table 2-20 NVMe drive indicators (VMD enabled) Activity Indicator Fault Indicator Description (Green) (Yellow) The NVMe drive is not detected. Steady on The NVMe drive is detected and operating properly. Blinking at 2 Hz Data is being read from or written to the NVMe drive.
Hard'Server 1288H V6 Server User Guide 2 Hardware Description Figure 2-31 M.2 FRU indicators Table 2-22 M.2 FRU indicators M.2 FRU Active M.2 FRU Fault Description Indicator (Green) Indicator (Yellow) The M.2 FRU is not detected. Steady on The M.2 FRU is inactive.
Hard'Server 1288H V6 Server User Guide 2 Hardware Description ⚫ Contact your local sales representative or see "Search Parts" in the Compatibility Checker to determine the components to be used. ⚫ For details about the OCP 3.0 network adapter, see the documents of each OCP 3.0 network adapter.
Hard'Server 1288H V6 Server User Guide 2 Hardware Description PCIe PCIe Conne Port Root Device Slot Slot Standa ctor Width Port (B/D/F Size (B/D/F Width ⚫ The maximum power supply of each PCIe slot is 75 W. 2.8 PSUs ⚫...
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Hard'Server 1288H V6 Server User Guide 2 Hardware Description Figure 2-36 Positions of fan modules 2021-12-24...
Hard'Server 1288H V6 Server User Guide 2 Hardware Description BP/J27) a: Reserved and unavailable currently. 2.10.2 Drive Backplane Front Drive Backplane ⚫ 4 x 3.5" drive pass-through backplane Configure this backplane in 4 x 3.5" drive pass-through configuration 1, 4 x 3.5" drive pass-through configuration 2, and 4 x 3.5"...
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Hard'Server 1288H V6 Server User Guide 2 Hardware Description Backplane power connector Mini-SAS HD connector (HDD POWER/J24) (PORT A/J28) Backplane signal cable connector (HDD_BP/J1) ⚫ 10 x 2.5" drive pass-through backplane Configure this backplane in 10 x 2.5" drive pass-through configuration 1, 10 x 2.5" drive pass-through configuration 2, 10 x 2.5"...
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Hard'Server 1288H V6 Server User Guide 2 Hardware Description LP slimline 4 connector Mini-SAS HD connector (SLIM C/ (PORT A/J6) SLIM_4/PORT_2A/J5) LP slimline 3 connector LP slimline 5 connector (SLIM D/ (SLIM E/ SLIM_3/PORT_1B/J4) SLIM_5/PORT_1A/J17) Backplane low-speed signal Backplane power connector...
Hard'Server 1288H V6 Server User Guide 3 Product Specifications Product Specifications 3.1 Technical Specifications 3.2 Environmental Specifications 3.3 Physical Specifications 3.1 Technical Specifications Table 3-1 Technical specifications Component Specifications Form factor 1U rack server ® Chipset Intel C621A Processor Supports one or two processors.
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Hard'Server 1288H V6 Server User Guide 3 Product Specifications Component Specifications − RDIMM and LRDIMM support − Max. 3200 MT/s memory speed − The DDR4 memory modules of different types (RDIMM and LRDIMM) and specifications (capacity, bit width, rank, and height) cannot be used together.
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Hard'Server 1288H V6 Server User Guide 3 Product Specifications Component Specifications − The RAID controller card supports a supercapacitor for power-off protection to ensure user data security. − The PCIe RAID controller card occupies one PCIe slot. For details about the RAID controller card, see V6 Server RAID Controller Card User Guide.
Hard'Server 1288H V6 Server User Guide 3 Product Specifications Component Specifications ⚫ Built-in ports: − Two SATA ports NOTE You are not advised to install the operating system on the USB storage media. Video card An SM750 video chip with 32 MB display memory is integrated on the mainboard.
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Hard'Server 1288H V6 Server User Guide 3 Product Specifications Category Specifications hour, 5° C (9° F) per 15 minutes NOTE The highest operating temperature varies depending on the server configuration. For details, see A.2 Operating Temperature Limitations. ⚫ Relative humidity (RH,...
Hard'Server 1288H V6 Server User Guide 3 Product Specifications Category Specifications − LpAm: 45.3 dBA ⚫ Operating: − LWAd: 6.97 Bels − LpAm: 52.6 dBA NOTE Actual sound levels generated during server operation vary depending on server configuration, load, and ambient temperature.
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Hard'Server 1288H V6 Server User Guide 3 Product Specifications Category Description the front and rear mounting bars. Weight in full ⚫ Maximum net weight: configuration − Server with 4 x 3.5" drives: 20.5 kg (45.19 lb) − Server with 8 x 2.5" drives: 18.0 kg (39.68 lb) −...
Hard'Server 1288H V6 Server User Guide 4 Software and Hardware Compatibility Software and Hardware Compatibility Use the Compatibility Checker to obtain information about the operating systems and hardware supported. ⚫ If incompatible components are used, the device may be abnormal. This fault is beyond the scope of technical support and warranty.
Hard'Server 1288H V6 Server User Guide 5 Safety Instructions Safety Instructions 5.1 Security 5.2 Maintenance and Warranty 5.1 Security General Statement ⚫ Comply with local laws and regulations when installing devices. These Safety Instructions are only a supplement. ⚫ The "DANGER", "WARNING", and "CAUTION" information in this document does not represent all the safety instructions, but supplements to the safety instructions.
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Hard'Server 1288H V6 Server User Guide 5 Safety Instructions Figure 5-1 Safety work wear ⚫ Before touching a device, wear ESD clothing and gloves (or wrist strap), and remove any conductive objects (such as watches and jewelry). Figure 5-2 shows conductive objects that must be removed before you touch a device.
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Hard'Server 1288H V6 Server User Guide 5 Safety Instructions Figure 5-3 Wearing an ESD wrist strap ⚫ Exercise caution when using tools. ⚫ If the installation position of a device is higher than the shoulders of the installation personnel, use a vehicle such as a lift to facilitate installation. Prevent the device from falling down and causing personal injury or damage to the device.
Hard'Server 1288H V6 Server User Guide 5 Safety Instructions ⚫ Transport each device in its original packaging. ⚫ If the original packaging is unavailable, package heavy, bulky parts (such as chassis and blades) and fragile parts (such as PCIe cards and optical modules) separately.
Hard'Server 1288H V6 Server User Guide 6 ESD 6.1 ESD Prevention 6.2 Grounding Methods for ESD Prevention 6.1 ESD Prevention The static electricity released by the human body or conductors may damage the mainboard or other electrostatic-sensitive devices. The damage caused by static electricity will shorten the service time of the devices.
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Hard'Server 1288H V6 Server User Guide 6 ESD ⚫ Use an ESD wrist strap that connects to a grounded work area or computer chassis through a ground cable. The wrist strap must be scalable, and the resistance of the ground cable must be at least 1 megohm (± 10%). Wear the wrist strap tightly against your skin.
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Installation and Configuration 7.1 Installation Environment Requirements 7.2 Hardware Installation 7.3 Power-On and Power-Off 7.4 Initial Configuration 7.1 Installation Environment Requirements 7.1.1 Space and Airflow Requirements To allow for servicing and adequate airflow, observe the following space and airflow requirements: ⚫...
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Figure 7-1 Direction of heat dissipation 7.1.2 Temperature and Humidity Requirements To ensure continued safe and reliable device operation, install or position the device in a well-ventilated, climate-controlled environment. ⚫...
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration 7.2 Hardware Installation 7.2.1 Installation Overview Installation process Figure 7-2 Installation process Precautions ⚫ Properly ground the server before installation to avoid damage to electronic components from electrostatic discharge. Improper grounding may cause ESD.
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration 7.2.2 Unpacking the Server Procedure Step 1 Check whether the packing case and seals are in good conditions. If the packing case is soaked or deformed, or the seals or pressure-sensitive adhesive tapes are not intact, contact technical support to obtain the Cargo Problem Feedback Form.
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration 7.2.4 Installing Server Guide Rails 7.2.4.1 Installing L-Shaped Guide Rails L-shaped guide rails apply only to our company's cabinets only. Procedure Step 1 Install floating nuts. Determine the installation positions of the floating nuts according to the cabinet device installation plan.
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Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Use a floating nut hook to pull the upper end of the floating nut, and fasten it to the upper edge of the square hole. Figure 7-4 Installing a floating nut Install the other floating nut in the same way.
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Figure 7-5 Installing an L-shaped guide rail Install the other guide rail in the same way. ----End 7.2.4.2 Installing the Static Rail Kit The static rail kit applies to cabinets with a distance of 610 mm to 950 mm (24.02 in. to 37.40 in.) between the front and rear mounting bars.
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Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Figure 7-6 Installing a static rail Step 5 Install the other guide rail in the same way. 2021-12-24...
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration ----End 7.2.4.3 Installing the Ball Bearing Rail Kit The ball bearing rail kit applies to cabinets with a distance of 609 mm to 950 mm (23.98 in. to 37.40 in.) between the front and rear mounting bars.
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Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Figure 7-7 Installing a ball bearing rail 2021-12-24...
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Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration 2021-12-24...
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Step 5 Install the other guide rail in the same way. ----End 7.2.5 Installing a Server 7.2.5.1 Installing the Server on L-Shaped Guide Rails ⚫ Before installing the server, ensure that the L-shaped guide rails are properly installed.
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Step 2 Connect external cables as required, such as network cables, VGA cables, and USB devices. Step 3 Connect the cables to the PSU. For details, see 7.2.6.9 Connecting PSU Cables.
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Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Figure 7-9 Removing inner rails Align the holes on the inner rails with the nail heads on both sides of the server, and install the inner rails in the arrow direction.
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Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Figure 7-11 Installing a server Push the server on the inner rails until it cannot move. Figure 7-12 Pushing the server into the static rail kit Open the baffle plate of the captive screws on the panel and tighten the captive screws.
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Figure 7-13 Securing a server Step 2 Connect external cables as required, such as network cables, VGA cables, and USB devices. Step 3 Connect the cables to the PSU. For details, see 7.2.6.9 Connecting PSU Cables.
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Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Pull out the inner rails as far as they will go. Figure 7-14 Pulling out an inner rail At least two people are required to lift the server vertically from both sides, align the two mounting screws at the rear of the server with the fixing holes on the inner rails, and place the server vertically at the rear of the server.
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Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Figure 7-15 Securing the server to inner rails (1) Aligning the six mounting screws at the front of the server with the fixing holes on the inner rails, place the server vertically to ensure that the server is secured to the inner rails.
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Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Figure 7-16 Securing a server to inner rails (2) Unlock the release latches on both sides of the inner rails and push the server as far as it will go. See (1) and (2) in Figure 7-17.
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Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Figure 7-17 Pushing the server into the ball bearing rail kit Open the baffle plate of the captive screws on the panel and tighten the captive screws. Figure 7-18 Securing a server...
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Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Step 2 Install a cable management arm (CMA). Insert the bracket on the right of the CMA into the right guide rail. See (1) in Figure 7-19. Insert the internal bracket on the left of the CMA into the left guide rail. See (2) in Figure 7-19.
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Step 3 Connect external cables as required, such as network cables, VGA cables, and USB devices. Step 4 Connect the cables to the PSU. For details, see 7.2.6.9 Connecting PSU Cables.
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration ⚫ Do not use cable ties at a place where the cables are bent. Otherwise, the cables may break. Common Methods The methods of laying out cables inside a cabinet are described as follows: ⚫...
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Figure 7-20 Connecting a USB-to-PS/2 cable and VGA cable ----End 7.2.6.3 Connecting Network Cables Before connecting or replacing a network cable, use a network cable tester to ensure that the new network cable is functional.
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration ⚫ Network cables must be bound using cable ties. Ensure that network cables are bound closely, neatly, and straight, and cable ties are in even distance and fastened properly. Step 4 Remove the network cable to be replaced.
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Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration ⚫ The number of the new cable must be the same as that of the old one. ⚫ Use the same type of labels for the optical cable. − Record the name and number of the local device to be connected on one side of the label, and those of the peer device on the other side.
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Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Figure 7-22 Connecting an optical cable ⚫ When you use an SFP+ cable: Remove the SFP+ cable to be replaced. Gently push the power connector inwards and pull the latch out to remove the SFP+ cable.
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Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Figure 7-23 Removing an SFP+ cable Connect the new SFP+ cable. Remove the dust-proof cap on the port, and insert the cable connector into the port. When you hear a "click" and the cable cannot be pulled out, the connector is secured.
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Step 6 If the peer device cannot be pinged, check whether the cable is intact or the connector is securely connected. ⚫ If yes, contact technical support. ⚫ If no, replace the cable or insert the connector securely, and go to Step Step 7 Bind the new optical cable.
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Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Figure 7-25 Removing a cable (for an IB NIC with two 56 Gbit/s ports as an example) Connect the new cable. Remove the dust-proof cap on the port, and insert the cable connector into the port.
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration ----End 7.2.6.6 Connecting a USB Type-C Cable The server panel provides an iBMC management port, which is connected to a PC or mobile phone through a USB Type-C cable to monitor and manage the system.
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Figure 7-29 Connecting a USB device ----End 7.2.6.8 Connecting a Serial Cable The rear panel of the server provides a standard RJ45 serial port (3-wire), which works as the OS serial port by default. You can set it as the iBMC serial port by using the iBMC CLI.
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration 7.2.6.9 Connecting PSU Cables 7.2.6.9.1 Connecting the AC PSU Cable Before connecting power cables, ensure that the server has been correctly installed. For details, see 7.2.5 Installing a Server .
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Figure 7-32 Securing the cable Step 4 Connect the other end of the power cable to the AC PDU in the cabinet. The AC PDU is fastened in the rear of the cabinet. Connect the power cable to the nearest jack on the AC PDU.
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Step 2 Connect the cables to the PSU. Put the OT terminal (for the ground cable) on the screw removed from the ground hole, install the screw on the ground hole, and tighten the screw. See (1) in Figure 7-33.
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Item Description ⚫ In AC or HVDC environment, the power cables of AC PSUs are grounded. Ensure that the power cables are in good contact. ⚫ In DC environment, the ground terminals of DC PSUs are grounded.
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration The server starts to be powered on. − Use the iBMC CLI. Log in to the iBMC CLI. For details, see 9.5 Logging In to the Server CLI. Run the following command: ipmcset -d powerstate -v 1 iii.
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration The Power Control page is displayed. Click Power Off or Forced Power Off. A confirmation message is displayed. Click OK. The server starts to be powered off. ⚫ Use the iBMC CLI.
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration 7.4.2 Configuration Overview Configuration Process Figure 7-34 Initial configuration process Table 7-5 Initial configuration process Process Description Change the initial Change the initial password of the default iBMC user. passwords.
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Process Description settings. Configure BIOS Configure the BIOS of the server, including the boot sequence, settings. NIC PXE function, and BIOS password. Install the OS. Install an OS for the server.
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Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration The Local Users page is displayed. Figure 7-35 Local Users page Step 3 Click Edit on the right of the user whose password is to be changed. The Edit User page is displayed.
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Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Figure 7-36 Edit User page Step 4 Enter a new password in the Password and Confirm Password text boxes. The password must meet the following requirements: ⚫ Contain 8 to 20 characters.
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration ----End 7.4.4 Checking the Server Scenario This section describes how to check the server on the iBMC WebUI. You can check the server on: ⚫ iBMC WebUI ⚫ iBMC CLI For more information about the iBMC, see the Hard'Server iBMC User Guide.
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Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration On the iBMC home page, choose iBMC Settings > Firmware Upgrade. The Firmware Version Info page is displayed. Figure 7-38 Firmware Version Info page Check whether the versions meet site requirements.
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration ◼ indicates a minor alarm, which has minor impact on the system but requires corrective action as soon as possible. Otherwise, a more severe alarm will be generated. − If no, no further action is required.
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration "Exit Saving Changes?" is displayed. Step 7 Select Yes and press Enter. The server automatically restarts for the settings to take effect. ----End 7.4.6 Configuring RAID The 1288H V6 supports multiple types of RAID controller cards.
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration ⚫ The UEFI mode is used by default. ⚫ For some OSs, if the capacity of the drive or RAID array for installing the OS is greater than 2 TB, use the UEFI mode.
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Step 3 Select PXE Configuration and press Enter. The PXE Configuration screen is displayed. The 1288H V6 supports a maximum of two OCP 3.0 network adapters. (Each OCP 3.0 network adapter supports a maximum of two network ports, that is, a maximum of four network ports are supported.)
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration After the PXE function is enabled, you can enable or disable the PXE function for a specific network port (for example, CPU2 First Slot Port1) on the PCIe NIC. ⚫...
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration ⚫ The current password of the system administrator is required before you change the password. The system will be locked if an incorrect password is entered three consecutive times. You can unlock the system by restarting it.
Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration ⚫ After the password of a common BIOS user is set, the Delete User Password parameter is displayed, which can be used to clear the configured password of the common BIOS user.
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Hard'Server 1288H V6 Server User Guide 7 Installation and Configuration Unless the software or components to be installed require an earlier version, keep the system in the latest state before using the server for the first time. Obtaining Related Documents ⚫...
Hard'Server 1288H V6 Server User Guide 8 Troubleshooting Guide Troubleshooting Guide For details about how to troubleshoot servers, see the Server Troubleshooting. It covers the following content: ⚫ Troubleshooting process Use appropriate methods to find the cause of a fault and rectify the fault. Analyze possible causes for a fault and narrow down the scope to reduce troubleshooting complexity, identify the root cause, and rectify the fault.
Hard'Server 1288H V6 Server User Guide 9 Common Operations Common Operations 9.1 Querying the iBMC IP Address 9.2 Logging In to the iBMC WebUI 9.3 Logging In to the SmartServer 9.4 Logging In to the Desktop of a Server 9.5 Logging In to the Server CLI 9.6 Managing VMD...
Hard'Server 1288H V6 Server User Guide 9 Common Operations The iBMC Configuration screen is displayed. Step 3 Select iBMC IPv4/IPv6 Configuration and press Enter. The iBMC IPv4/IPv6 Configuration screen is displayed. Step 4 Check the IP address of the iBMC management network port.
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Hard'Server 1288H V6 Server User Guide 9 Common Operations 1. In the Security area, select Use TLS 1.2. Procedure Step 1 Check that the client (for example, a local PC) used to access the iBMC meets the operating environment requirements.
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Hard'Server 1288H V6 Server User Guide 9 Common Operations ⚫ Connect the local PC to the iBMC direct connect management port using a USB Type-C cable. ⚫ Only servers configured with the iBMC direct management port support this operation. ⚫...
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Hard'Server 1288H V6 Server User Guide 9 Common Operations ⚫ If a security alert is displayed, you can ignore this message or perform any of the following to shield this alert: ⚫ Import a trust certificate and a root certificate to the iBMC.
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Hard'Server 1288H V6 Server User Guide 9 Common Operations Table 9-2 User login Parameter Description Username Username for logging in to the iBMC WebUI. ⚫ When Domain is Local iBMC, the maximum length of the user name is 20 characters.
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Hard'Server 1288H V6 Server User Guide 9 Common Operations The default user name for logging in to the iBMC system is Administrator, and the default password is Admin@9000. Step 3 Select Local iBMC or Automatic matching from the Domain drop-down list.
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Hard'Server 1288H V6 Server User Guide 9 Common Operations ⚫ Automatic matching: If this option is selected, the system searches for the user from the local user list first. If no match is found, the system searches from the domain servers in the sequence displayed in the Domain drop-down list.
Hard'Server 1288H V6 Server User Guide 9 Common Operations 9.3 Logging In to the SmartServer Scenario SmartServer is the mobile version of Intelligent Baseboard Management Controller (iBMC). After SmartServer is installed on your mobile phone, you can query, configure, and manage servers using your mobile phone.
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Hard'Server 1288H V6 Server User Guide 9 Common Operations Figure 9-3 Setting a password Step 3 Enter a password. After the password is set, the Devices screen is displayed. 2021-12-24...
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Hard'Server 1288H V6 Server User Guide 9 Common Operations Figure 9-4 Device management Step 4 Add devices. Add a server to the SmartServer device list. After the server is added, you can use SmartServer to manage it. ⚫ Click in the upper right corner of the screen.
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Hard'Server 1288H V6 Server User Guide 9 Common Operations Figure 9-5 Add Device Step 5 Set parameters. Table 9-3 Parameter Description Parameter Description Specifications ⚫ Access mode Mode for accessing the server to Network be managed. ⚫ USB tethering This access mode requires the...
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Hard'Server 1288H V6 Server User Guide 9 Common Operations Parameter Description Specifications Port Number of the port for accessing The default value is 443. the server. User User name for accessing the The default user name is server. Administrator. Password Password for accessing the server.
Hard'Server 1288H V6 Server User Guide 9 Common Operations 9.4 Logging In to the Desktop of a Server 9.4.1 Using the Remote Virtual Console 9.4.1.1 iBMC Scenario Log in to the desktop of a server using the iBMC Remote Virtual Console.
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Hard'Server 1288H V6 Server User Guide 9 Common Operations ⚫ Java Integrated Remote Console (Shared): allows two local users or five VNC users to access and manage the server at a time. The users can see each other's operations. ⚫...
Hard'Server 1288H V6 Server User Guide 9 Common Operations Figure 9-8 HTML5 Integrated Remote Console ----End 9.4.2 Logging In to the System Using the Independent Remote Console Log in to the desktop of a server using the Independent Remote Console.
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Hard'Server 1288H V6 Server User Guide 9 Common Operations Procedure Step 1 Configure an IP address for the client (local PC) to enable communication with the iBMC management network port. Step 2 Double-click KVM.exe. The Independent Remote Console login page is displayed.
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Hard'Server 1288H V6 Server User Guide 9 Common Operations Figure 9-10 Security warning Step 6 Click Yes. Ignore the certificate authentication error and go to the real-time desktop. ⚫ Click No to return to the login interface. ⚫ Click Import CA to import a CA certificate (*.cer, *.crt, or *.pem). After the CA certificate is imported, the security warning dialog box will no longer be displayed.
Hard'Server 1288H V6 Server User Guide 9 Common Operations 9.4.2.2 Ubuntu The following Ubuntu OS versions are supported: ⚫ Ubuntu 14.04 LTS ⚫ Ubuntu 16.04 LTS Before the operation, ensure that the IPMItool version later than 1.8.14 has been installed.
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Hard'Server 1288H V6 Server User Guide 9 Common Operations ⚫ When the port number is the default port number, the port number can be left blank. ⚫ The preferred port number is the HTTPS service port number, and then the RMCP+ service port number.
Hard'Server 1288H V6 Server User Guide 9 Common Operations Figure 9-14 Server desktop ----End 9.4.2.3 Mac The following macOS version is supported: ⚫ Mac OS X El Capitan Before the operation, ensure that the IPMItool version later than 1.8.14 has been installed.
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Hard'Server 1288H V6 Server User Guide 9 Common Operations Figure 9-15 Independent Remote Console login page Step 5 Enter the network address, user name, and password. ⚫ Local and LDAP domain users are supported. ⚫ The network address can be in either of the following formats: ⚫...
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Hard'Server 1288H V6 Server User Guide 9 Common Operations Figure 9-16 Security warning Step 8 Click Yes. Ignore the certificate authentication error and go to the real-time desktop. ⚫ Click No to return to the login interface. ⚫ Click Import CA to import a CA certificate (*.cer, *.crt, or *.pem). After the CA certificate is imported, the security warning dialog box will no longer be displayed.
Hard'Server 1288H V6 Server User Guide 9 Common Operations 9.4.2.4 Red Hat The following Red Hat OS versions are supported: ⚫ Red Hat 6.9 ⚫ Red Hat 7.3 Before the operation, ensure that the IPMItool version later than 1.8.14 has been installed.
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Hard'Server 1288H V6 Server User Guide 9 Common Operations ⚫ When the port number is the default port number, the port number can be left blank. ⚫ The preferred port number is the HTTPS service port number, and then the RMCP+ service port number.
Hard'Server 1288H V6 Server User Guide 9 Common Operations Figure 9-20 Server desktop ----End 9.5 Logging In to the Server CLI 9.5.1 Logging In to the CLI Using PuTTY over a Network Port Scenario Use PuTTY to access a server over a local area network (LAN).
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Hard'Server 1288H V6 Server User Guide 9 Common Operations Figure 9-21 PuTTY Configuration Step 3 In the navigation pane, choose Session. Step 4 Set login parameters. The parameters are described as follows: ⚫ Host Name (or IP address): Enter the IP address of the server to be accessed, for example, 192.168.34.32.
Hard'Server 1288H V6 Server User Guide 9 Common Operations Step 6 Enter the user name and password. If the login is successful, the server host name is displayed on the left of the prompt. ----End 9.5.2 Logging In to the CLI Using PuTTY over a Serial Port...
Hard'Server 1288H V6 Server User Guide 9 Common Operations Figure 9-22 PuTTY Configuration Step 6 Click Open. The PuTTY window is displayed. If this is your first login to the server, the PuTTY Security Alert dialog box is displayed. Click Yes to proceed.
Hard'Server 1288H V6 Server User Guide 9 Common Operations ⚫ The VMD function must be enabled on the BIOS in UEFI mode only. The BIOS in legacy mode does not support this setting. ⚫ If the VMD function is enabled and the latest VMD driver is installed, the NVMe drives support surprise hot swap.
Hard'Server 1288H V6 Server User Guide 9 Common Operations "Exit Saving Changes?" is displayed. Step 9 Select Yes and press Enter. The server automatically restarts for the settings to take effect. ----End 9.7 Accessing the BIOS Procedure Step 1 Connect a local PC with the KVM to the server, or access the Remote Control page on the iBMC WebUI.
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Hard'Server 1288H V6 Server User Guide 9 Common Operations ⚫ To access the Smart Provisioning GUI, press F6. ⚫ To switch to the Boot Manager screen, press F11. ⚫ To boot from the network, press F12. Step 4 Enter the current password.
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Hard'Server 1288H V6 Server User Guide 9 Common Operations A dialog box is displayed, prompting you to change the default password. Figure 9-25 Changing the default password Click Ok. The dialog box for password complexity requirements is displayed. A password must: −...
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Hard'Server 1288H V6 Server User Guide 9 Common Operations Figure 9-26 Password complexity requirements Click Ok. The dialog box for entering the new password is displayed. 2021-12-24...
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Hard'Server 1288H V6 Server User Guide 9 Common Operations Figure 9-27 Setting a new password Enter a password and press Enter. The dialog box for confirming the new password is displayed. 2021-12-24...
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Hard'Server 1288H V6 Server User Guide 9 Common Operations Figure 9-28 Confirming the new password In the dialog box that is displayed, enter the password again and press Enter. A dialog box is displayed, indicating that the password is changed successfully.
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Hard'Server 1288H V6 Server User Guide 9 Common Operations Figure 9-29 Password change success dialog box Click Ok. The front page is displayed. 2021-12-24...
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Hard'Server 1288H V6 Server User Guide 9 Common Operations Figure 9-30 Front Page screen Step 6 After the password is entered, press Enter. The front page is displayed. ⚫ Figure 9-31 and Figure 9-32 show the Front Page screen displayed when you log in to the system as the administrator.
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Hard'Server 1288H V6 Server User Guide 9 Common Operations Figure 9-31 Front Page screen (UEFI mode) 2021-12-24...
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Hard'Server 1288H V6 Server User Guide 9 Common Operations Figure 9-32 Front Page screen (legacy mode) 2021-12-24...
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Hard'Server 1288H V6 Server User Guide 9 Common Operations Figure 9-33 Front Page screen (login using a common user password) Step 7 Use arrow keys to select Setup Utility and press Enter. The Main screen is displayed. 2021-12-24...
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Hard'Server 1288H V6 Server User Guide 9 Common Operations Figure 9-34 Main screen 1 2021-12-24...
Hard'Server 1288H V6 Server User Guide 9 Common Operations Figure 9-35 Main screen 2 ----End 9.8 Clearing Data from a Storage Device Scenario Use the Linux badblocks command to clear data on a storage device. When running the badblocks command, you need to specify parameters to overwrite data on the storage device.
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Hard'Server 1288H V6 Server User Guide 9 Common Operations Procedure Before performing this operation, check that: ⚫ The storage device is not in a RAID array with redundancy, and the server operating system is running properly. ⚫ You have obtained the server No. and the slot No. and location of the storage device to be cleared.
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Hard'Server 1288H V6 Server User Guide 9 Common Operations Step 5 Write 0s to the drive to be cleared. Command: badblocks -swft 0 Drive letter Example: badblocks -swft 0 /dev/sdb Figure 9-38 Clearing data (example) ⚫ The drive letters vary with the storage media (HDD, SSD, and USB flash drive). Ensure that the drive letter that you entered is correct.
Hard'Server 1288H V6 Server User Guide 10 More Information More Information 10.1 Technical Support 10.2 Product Information Resources 10.3 Product Configuration Resources 10.4 Maintenance Tool 10.1 Technical Support ZOOMindustry provides timely and efficient technical support through: ⚫ Local branch offices ⚫...
Hard'Server 1288H V6 Server User Guide 10 More Information 10.2 Product Information Resources Table 10-1 Product information Item Description How to Obtain Server product Documents that provide Visit Technical Support > documentation information about the Documentation > View structure, specifications,...
Hard'Server 1288H V6 Server User Guide 11 Software and Configuration Utilities Software and Configuration Utilities 11.1 iBMC 11.2 BIOS 11.1 iBMC The intelligent Baseboard Management Controller (iBMC) complies with DCMI 1.5/IPMI 1.5/IPMI 2.0 and SNMP standards and supports various functions, including KVM redirection, text console redirection, remote virtual media, and hardware monitoring and management.
Hard'Server 1288H V6 Server User Guide 11 Software and Configuration Utilities ⚫ Intelligent power management The iBMC uses power capping to increase deployment density, and uses dynamic energy saving to reduce operating expenditure. For more information about the iBMC, see the Hard'Server Rack Server iBMC User Guide.
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Hard'Server 1288H V6 Server User Guide A Appendix Appendix A.1 Product SN The serial number (SN) on the slide-out label plate uniquely identifies a device. The SN is required when you contact technical support. Figure A-1 SN example Table A-1 SN description Description ESN ID (two characters), which can only be 21.
Hard'Server 1288H V6 Server User Guide A Appendix Description − Letters A to C indicate October to December, respectively. Serial number (six digits). RoHS compliance (one character). Y indicates RoHS compliant. Internal model, that is, product name. A.2 Operating Temperature Limitations...
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Hard'Server 1288H V6 Server User Guide A Appendix Configuration Max. 30° C Max. 35° C Max. 40° C Max. 45° C (86° F) (95° F) (104° F) (113° F) ⚫ 8 x 2.5" drive All options Options not Options not...
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Hard'Server 1288H V6 Server User Guide A Appendix Configuration Max. 30° C Max. 35° C Max. 40° C Max. 45° C (86° F) (95° F) (104° F) (113° F) 368/8380 processors ⚫ GPU cards ⚫ Memory ⚫ IB cards modules of ⚫...
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Hard'Server 1288H V6 Server User Guide A Appendix ⚫ When a single fan is faulty, the highest operating temperature is 5° C (9° F) lower than the rated value. ⚫ When a single fan is faulty, the system performance may be affected.
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Hard'Server 1288H V6 Server User Guide A Appendix Sensor Description Component from 1 to 2. CPUN VRD Temp CPU VRD temperature Mainboard N indicates the CPU number. The value is 1 or 2. CPUN MEM Temp CPU memory module Memory module...
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Hard'Server 1288H V6 Server User Guide A Appendix Sensor Description Component from 1 to 7. Power Server input power Power supply unit (PSU) PSN VIN PSU N input voltage PSU N N indicates the PSU number. The value is 1 or 2.
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Hard'Server 1288H V6 Server User Guide A Appendix Sensor Description Component Watchdog2 Watchdog Mainboard Mngmnt Health Management subsystem Management modules health status UID Button UID button status Mainboard PwrOk Sig. Drop Voltage dip status Mainboard PwrOn TimeOut Power-on timeout Mainboard...
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Hard'Server 1288H V6 Server User Guide A Appendix Sensor Description Component N indicates the drive slot number. The value ranges from 0 to 9. PCIe RAID$ Temp Temperature of the PCIe PCIe RAID controller card RAID controller card M2 Temp(PCIe$)
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Hard'Server 1288H V6 Server User Guide A Appendix Sensor Description Component LCD Status LCD health status LCD Presence LCD presence PCIe$ Temp PCIe card chip temperature PCIe card PCIe$ Card BBU BBU status of the PCIe PCIe RAID controller card...
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Hard'Server 1288H V6 Server User Guide A Appendix Sensor Description Component (BMA) link loss detection OAMPort1_$ Link Network port OAM link status OAMPort2_$ Link Network port OAM link status 2021-12-24...
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Hard'Server 1288H V6 Server User Guide B Glossary Glossary B.1 A-E The baseboard management controller (BMC) complies with the Intelligent Platform Management Interface (IPMI). It collects, processes, and stores sensor signals, and monitors the operating status of components. The BMC provides the...
Hard'Server 1288H V6 Server User Guide B Glossary hot swap Replacing or adding components without stopping or shutting down the system. B.3 K-O A hardware device that provides public video, keyboard and mouse (KVM). B.4 P-T panel An external component (including but not limited to ejector levers, indicators, and ports) on the front or rear of the server.
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Hard'Server 1288H V6 Server User Guide B Glossary system event log Event records stored in the system used for subsequent fault (SEL) diagnosis and system recovery. B.5 U-Z A unit defined in International Electrotechnical Commission (IEC) 60297-1 to measure the height of a cabinet, chassis, or subrack.
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Hard'Server 1288H V6 Server User Guide C Acronyms and Abbreviations Acronyms and Abbreviations C.1 A-E alternating current Advanced Encryption Standard New Instruction Set Address Resolution Protocol Advanced Vector Extensions backup battery unit BIOS Basic Input/Output System baseboard management controller China Compulsory Certification...
Hard'Server 1288H V6 Server User Guide C Acronyms and Abbreviations direct current DDR4 Double Data Rate 4 DDDC double device data correction DEMT Dynamic Energy Management Technology DIMM dual in-line memory module DRAM dynamic random-access memory digital video disc error checking and correcting...
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Hard'Server 1288H V6 Server User Guide C Acronyms and Abbreviations high availability hard disk drive high-performance computing HTTP Hypertext Transfer Protocol HTTPS Hypertext Transfer Protocol Secure iBMC intelligent baseboard management controller Industry Canada ICMP Internet Control Message Protocol Internet Data Center...
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Hard'Server 1288H V6 Server User Guide C Acronyms and Abbreviations LRDIMM load-reduced dual in-line memory module light emitting diode LAN on motherboard media access control module management controller next business day NC-SI Network Controller Sideband Interface Open Compute Project C.4 P-T...
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Hard'Server 1288H V6 Server User Guide C Acronyms and Abbreviations reliability, availability and serviceability RDIMM registered dual in-line memory module REACH Registration Evaluation and Authorization of Chemicals RJ45 registered jack 45 RoHS Restriction of the Use of Certain Hazardous Substances in...
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Hard'Server 1288H V6 Server User Guide C Acronyms and Abbreviations Trusted Execution Technology TransFlash module TFTP Trivial File Transfer Protocol TCP offload engine trusted platform module C.5 U-Z UDIMM unbuffered dual in-line memory module UEFI Unified Extensible Firmware Interface unit identification light Underwriter Laboratories Inc.
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