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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 the PSU Backplane

Replacing the PSU Backplane

Impact on the System

  • Before replacing the PSU backplane, you must power off the storage node. This will adversely affect the services running on the node. Exercise caution when performing this operation.


  • The replacement PSU backplane is ready.
  • You have recorded the cable mapping of the device, securely stopped the services, executed a shut-down command in the operating system to power off the storage node, and disconnected the node from power sockets and peripheral devices.

Tools and Materials

  • Flat-head screwdrivers
  • Phillips screwdrivers
  • ESD gloves
  • ESD wrist straps
  • ESD bags
  • Labels


  1. Wear an ESD wrist strap or ESD gloves.
  2. Use the KVM to log in to the operating system of the node, enter user name root and its password (default: Root@storage), and run poweroff command to power off the node.

    Wait until the KVM has no output. The power-off is complete.

  3. Remove all power cables and external signal cables.
  4. Remove the storage node from the enclosure.
    1. Slide the storage node out of the cabinet, as shown in step 1 in Figure 2-49.
    2. Press the baffle plate and slide the storage node out of enclosure, as shown in step 2 in Figure 2-49.

    Figure 2-49  Removing a storage node

  5. Remove the enclosure cover.
    1. Use a flat-head screwdriver to loosen the latch that secures the ejector lever of the enclosure cover, as shown in step 1 in Figure 2-50.
    2. Open the ejector lever to push the enclosure cover backwards, as shown in step 2 in Figure 2-50.

      Figure 2-50  Removing an enclosure cover

  6. Take out the air duct, as shown in Figure 2-51.

    Figure 2-51  Removing an air duct

  7. Remove all PSUs. For details, see Replacing a Power Module.
  8. Remove all cables from the PSU backplane.
  9. Remove the PSU backplane.
    1. Lift the PSU backplane to remove it. See Figure 2-52.

      Figure 2-52  Removing the PSU backplane

  10. Place the removed PSU backplane in an ESD bag.
  11. Take the spare PSU backplane out of its ESD bag.
  12. Install the PSU backplane.
    1. Place the PSU backplane in the planned position, and push it downward until it cannot move. See Figure 2-53.

      Figure 2-53  Installing the PSU backplane

  13. Connect cables to the PSU backplane.
  14. Install PSUs. For details, see Replacing a Power Module.
  15. Align the positioning pins on the air duct with the fixing holes on the mainboard by following the instructions on the enclosure, and vertically place the air duct downwards, as shown in Figure 2-54.

    Figure 2-54  Installing an air duct

  16. Install the enclosure cover.
    1. Place the enclosure cover horizontally, align it with the fixing slots on both side panels of the enclosure, and close the ejector lever, as shown in steps 1 and 2 in Figure 2-55.
    2. Use a flat-head screwdriver to tighten the latch in order to secure the ejector lever of the enclosure cover, as shown in step 3 in Figure 2-55.

      Figure 2-55  Installing an enclosure cover

  17. Put the storage node into the cabinet.
    1. Align the securing holes in the inner rails with the positioning pins on the storage node, and secure the inner rails to the storage node, as shown in step 1 in Figure 2-56.
    2. Align the inner rails with the holding rails, and push the storage node into the holding rails, as shown in step 2 in Figure 2-56.
    3. Ensure that the storage node is horizontally installed and screwed.

    Figure 2-56  Installing a storage node

  18. Connect the storage node to the power sockets and peripheral devices according to the cable connection labels. Then power on the storage node.
  19. Inspect the system using SmartKit. Choose Home > Storage > Routine Maintenance > More > Inspection to check the system status. For details, see the OceanStor 9000 V5 Routine Maintenance.

    • If all inspection items are successful: The inspection is successful.
    • If some inspection items fail the inspection: The inspection is failed. Rectify the faults by taking recommended actions in the inspection reports. You need to reperform inspection after rectifying. If the inspection is still failed, contact Huawei technical support.

Follow-up Procedure

After replacing the PSU backplane, label the replaced PSU backplane to facilitate subsequent operations.

Updated: 2019-07-25

Document ID: EDOC1100067965

Views: 15567

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