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OceanStor 9000 V100R001C30 Parts Replacement 14

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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 System Enclosure

Replacing a System Enclosure

This section explains how to replace the system enclosure of the C72.

Impact on the System

Before replacing a system enclosure, you need to power off the storage device. As a result, system services are interrupted.

Prerequisites

  • A replacement system enclosure is ready.
  • The system enclosure that you want to replace has been located.
  • The cable connection positions of the system enclosure that you want to replace are labeled on the cables.
  • The storage device has been powered off after services had been correctly stopped.

Precaution

To prevent personal injury, arrange three persons to move a system enclosure.

Tools and Materials

  • Phillips screwdriver (M3 to M6)
  • ESD wrist strap
  • ESD bag
  • ESD table
  • Diagonal pliers
  • Cable ties
  • Labels

Procedure

  1. Wear an ESD wrist strap.
  2. Log in to the node through the serial port as user root (default password is Root@storage), then run poweroff to poweroff the node and wait for the shutdown to complete.

    Set Bits per second to 115200, Data bits to 8, Stop bits to 1, Parity to None, and Flow control to None.

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

    Need to perform this operation in two control modules.

  3. After marking the cable connection positions on the new control module, unplug cables from the control module to be replaced.
  4. Uninstall the cable manager and remove the cables from the system enclosure.
  5. Take the replacement system enclosure out of its ESD bag and place it on the ESD table.
  6. Remove all components from the system enclosure to be replaced and place them on the ESD table.

    Correctly record the mapping between components and their slots. Install these components into the replacement system enclosure based on the recorded mapping. Otherwise, services may be affected.

  7. Remove the system enclosure that you want to replace from the cabinet.
    1. Loosen the two screws on the front panel and slowly pull out the system enclosure, as shown in Figure 5-30.

      Figure 5-30  Pulling out a system enclosure

    2. Loosen the two screws on the front panel and pull out the front panel, as shown in Figure 5-31.

      Figure 5-31  Pulling out a front panel

    3. Press retention clips on guide rails, pull out the system enclosure, and place the system enclosure on the ESD table, as shown in Figure 5-32.

    Figure 5-32  Removing a system enclosure

  8. Uninstall the inner rails of guide rails in the system enclosure that you want to replace, and reinstall them to the same positions in the replacement system enclosure.
    1. Use a Phillips screwdriver to remove the four screws from the inner rails of guide rails, as shown in Figure 5-33.

      Figure 5-33  Removing screws from the inner rails of guide rails

    2. Pull out the inner rails of guide rails in the system enclosure that you want to replace, as shown in Figure 5-34.

      Figure 5-34  Pulling out the inner rails of guide rails

    3. Insert the inner rails of guide rails into the replacement system enclosure, as shown in Figure 5-35.

      Figure 5-35  Inserting the inner rails of guide rails

    4. Use a Phillips screwdriver to fasten the four screws on the inner rails of guide rails, as shown in Figure 5-36.

      Figure 5-36  Fastening screws on the inner rails of guide rails

  9. Install the system enclosure into the cabinet.
    1. Slide the system enclosure into the cabinet along guide rails.
    2. Loosen the two screws on the front panel and slowly pull out the system enclosure, as shown in Figure 5-37.

      Figure 5-37  Pulling out a system enclosure

    3. Fasten the two screws on the front panel and slowly slide the system enclosure into the cabinet, as shown in Figure 5-38.

      Figure 5-38  Installing a front panel

    4. Fasten the two screws on the front panel, as shown in Figure 5-39.

      Figure 5-39  Fastening screws on the front panel

    5. Ensure that the system enclosure is horizontally installed.
    6. Ensure that all components of the original system enclosure are installed into the replacement system enclosure.

      Install these components into the replacement system enclosure based on the recorded mapping between components and their slots. Otherwise, system services may be affected.

  10. Install the cable manager and connect cables to the system enclosure.
  11. Power on the storage device and check whether all components work correctly.

    • If yes, the system enclosure is successfully installed.
    • If no, cables are incorrectly connected, components are incorrectly installed, or the newly installed system enclosure is faulty.

  12. Use a serial port to log in to the operating system as user root, and run the following script to initiate a node status self-check.

    cd /opt/huawei/deploy/script

    ./envcheck.py

    The normal self-check 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
    TOE driver: OK
    SoftRaid status: OK
    Firewall status: OK
    Command Output:
    ********************************************************************************
    

  13. Check whether network ports on the storage node are named P0, P1, NIC0, NIC1, NIC2, and NIC3, respectively.
    1. Use a serial port to log in to the operating system as user root, and run ifconfig -a to check whether network ports on the storage node are named P0, P1, NIC0, NIC1, NIC2, and NIC3.

      • If yes, go to 14.
      • If no, go to 13.b.

    2. Run reboot to restart the storage node, so that new network adapters can be identified.
  14. Check the status of the storage node on the DeviceManager.
    1. Start the browser on the maintenance terminal and log in to the DeviceManager.
    2. In the Alarms area on the home page, check whether a new alarm is reported.

      • If yes, handle the alarm according to the alarm help.
      • If no, go to 14.c.

    3. Click Device View to go to the device view.
    4. In Nodes, check the status of the node that is newly added to the cluster.

      • Health Status: Normal
      • Running Status: Online

Follow-up Procedure

After replacing the system enclosure, label it to facilitate subsequent operations.

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Updated: 2018-10-27

Document ID: EDOC1000075654

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