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OceanStor 9000 V5 7.0 Parts Replacement 05

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Replacing a Main Control Board Enclosure

Replacing a Main Control Board Enclosure

This section explains how to replace a storage node by replacing main control board enclosure for a P25.

Impact on the System

The P25 must be powered off before replacement of a main control board enclosure. Therefore, the services running on the P25 will be affected. Perform this operation with caution.

Prerequisites

  • A new main control board enclosure is available.
  • Before replacing the main control board enclosure, label the cables on the P25.

Precaution

Each P25 has two power supplies. Ensure that both power supplies are disconnected.

Tools and Materials

  • Phillips screwdriver
  • ESD gloves
  • ESD wrist strap
  • ESD bag
  • Labels

Procedure

  1. Wear the ESD wrist strap or gloves. Follow these steps to put on the ESD wrist strap.

    1. Put on the ESD wrist strap.
    2. Fasten the latch to ensure a good contact between the strap and your skin.
    3. There are two types of ESD wrist straps, ESD jack and metallic clip.

      • When using a strap with a pin connector, insert the grounding terminal of the strap to the ESD hole on the chassis.



      • When using a strap with a clasp, attach the clasp to the square hold at the chassis side.



    4. Make sure the latch is closely locked and the grounding terminal has been inserted to the ESD hold or the clasp is attached to the chassis hole firmly.

  2. Use KVM to log in to the OS as user root (default password is Root@storage), then run poweroff to poweroff the node and wait for the shutdown to complete.

    Wait for the KVM screen to have no output, indicates that the shutdown has been completed.

  3. Label the cables on the P25 and disconnect the P25 from the power sockets and other devices.
  4. Remove the main control board enclosure.

    1. Press the buttons on the two handles at the rear of the P25 chassis, as shown in step 1 in Figure 7-60.
    2. Release the two handles and push them down, as shown in step 2 in Figure 7-60.
    3. The main control board enclosure slides out when you push the two handles down, as shown in step 3 in Figure 7-60. Take out the main control board enclosure and place it on a clean ESD platform.
    Figure 7-60  Removing the P25 main control board enclosure

  5. Remove the system disk modules and NVDIMM module of the main control board enclosure in turn, and put them into ESD bags. For details on how to remove them, see Replacing a System Disk Module and Replacing an NVDIMM Module.
  6. Take the main control board enclosure to be installed out of the ESD bag.
  7. Install the system disk modules and NVDIMM module to the main control board enclosure in turn. For details on how to install them, see Replacing a System Disk Module and Replacing an NVDIMM Module.
  8. Install the main control board enclosure.

    1. Push the main control board enclosure into the chassis, as shown in step 1 in Figure 7-61.
    2. Hold the two handles on the main control board enclosure and push the main control board enclosure in place, as shown in step 2 in Figure 7-61. Close the two handles.
      Figure 7-61  Installing the P25 main control board enclosure

    After hardware installation, if there are operations need to be performed using BIOS, for the initial startup, clear NVDIMM data using the BIOS. Otherwise, the operating system may fail to be started. Before connecting the power cable and powering on the storage node, connect the KVM cable, and then adjust the display content of the KVM to the port connected to the storage node.

  9. According to the labels, connect the P25 to the power socket and other devices. Then power on the P25.
  10. Clear NVDIMM data.
    1. During the system startup process, press Esc when the Press Esc for boot options message is displayed, choose SCU, input the BIOS password to enter the BIOS screen.

      Figure 7-62  Pressing Esc

      Figure 7-63  Choosing SCU

    2. Choose Security > Clear NvDimm Flash.

      Figure 7-64  Choosing Clear NvDimm Flash

    3. In the Clear NvDimm Flash? dialog box, select Yes and press Enter.

      Figure 7-65  Starting to clear NVDIMM data

    4. Wait 20 seconds. Check whether the displayed dialog box states "Clear NvDimm flash success. Please reboot system!"

      • If yes, go to 10.e.
      • If no, contact technical support.
      Figure 7-66  Clearing NVDIMM data

    5. Press Enter and then F10. In the dialog box that is displayed, select Yes to save the configuration and restart the storage node.

      Figure 7-67  Saving the configuration and restarting the storage node

  11. Check whether the components are successfully installed.

    For details, see Replacing a System Disk Module and Replacing an NVDIMM Module.

  12. Activate the system disk RAID group of the storage node.
    1. If the following information is displayed during the startup of the operating system of the storage node, press Ctrl+C to go to the SAS BIOS interface.

      Press Ctrl-C to start LSI Corp Configuration Utility...

    2. Press Enter and choose RAID Properties > View Existing Volume > Manage Volume > Activate Volume, as shown in Figure 7-68.

      Figure 7-68  Activate Volume page

    3. Highlight Y to activate the RAID group, as shown in Figure 7-69.

      Figure 7-69  Activating a RAID group

    4. Choose SAS Topology > LSI, press Alt+B to set the value of Device Info to Boot. See Figure 7-70.

      Figure 7-70  Setting Boot option

    5. Press Esc, choose Save changes then exit this menu, press Esc twice, then choose Exit the Configuration Utility and Reboot.
  13. Configure an IP address for an IPMI Port of the storage node.
    1. On the KVM, run the restart command to restart the storage node.
    2. During the system startup process, press Esc when the Press Esc for boot options message is displayed, choose SCU, input the BIOS password to enter the BIOS screen.
    3. Navigate to Advanced > IPMI BMC Configuration > BMC Configuration.
    4. Set IP Source to Static.
    5. Set a correct IPv4 IP Address, IPv4 Subnet Mask, and IPv4 Gateway Address.
    6. Press F10 and select yes to save configurations and exit the BIOS screen.
  14. Run the script to check the status of the storage node.

    cd /opt/product/deploy/script

    ./envcheck.py

    Normal result is as follows:
    [2014-11-05 16:45:02,491][INFO    ][module:envcheck, line:0620] 
    ********************************************************************************
    Check Item: SNAS Environment Check Summary
    Check Pass:True
    Check Cmd :
    Check Info:
    kernel version: OK
    nvdimm driver: OK
    TOE driver: OK
    HardRaid status: OK
    Firewall status: OK
    Command Output:
    ********************************************************************************
    

  15. Check whether the network ports of the storage node are named A0-0, A0-1, B3-0, and B3-1.
    1. Run ifconfig -a on the KVM to check whether the network ports of the storage node are named A0-0, A0-1, B3-0, and B3-1.

      • If yes, go to 16.
      • If no, go to 15.b.

    2. Run reboot to restart the storage node to identify the new network adapter.
  16. Connect the signal cable to the storage node according to the cable connection label.
  17. On the DeviceManager, view the node status.
    1. On the maintenance terminal, log in to the DeviceManager in a browser.
    2. In the Alarms area on the home page, check whether new alarms are generated.

      • If yes, handle the alarms by following the alarm help information.
      • If no, go to 17.c.

    3. On the right of the home page, click System to go to the System page.
    4. Click Device View tab to go to the Device View page.
    5. In Nodes, view the status of the new storage node.

      • Health Status: Normal
      • Running Status: Online

  18. Wait 10 minutes and run reboot to restart the storage node.

    After the storage node is successfully restarted, the SN of the subrack of the new main control board will be updated to the configuration file.

Follow-up Procedure

After replacing the main control board enclosure, label the removed main control board enclosure for subsequent handling.

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Updated: 2019-07-25

Document ID: EDOC1100067965

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