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FusionStorage V100R006C10 Block Storage Service Parts Replacement 06

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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.

Prerequisites

  • 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

Procedure

  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 cabinet.
    1. Loosen the captive screws on the panel using a Phillips screwdriver, as shown in step 1 in Figure 4-59.

      Figure 4-59  Removing a storage node

    2. Slowly pull the storage node out along the guide rails, as shown in step 2 in Figure 4-59.
    3. Press the release buttons on both sides and pull the storage node out of the cabinet along the guide rails, as shown in step 3 in Figure 4-59.
  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 4-60.
    2. Open the ejector lever to push the enclosure cover backward, as shown in step 2 in Figure 4-60.

      Figure 4-60  Removing an enclosure cover

  6. Lift the air duct, as shown in Figure 4-61.

    Figure 4-61  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 4-62.

      Figure 4-62  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 4-63.

      Figure 4-63  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, and vertically place the air duct downwards, as shown in Figure 4-64.

    Figure 4-64  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 4-65.

      Figure 4-65  Installing an enclosure cover

    2. Tighten the latch to secure the ejector lever of the enclosure cover using flat-head screwdriver, as shown in step 3 in Figure 4-65.
  17. Put the storage node into the cabinet.
    1. Arrange at least four persons to lift the storage node on both sides, align the inner rails on the storage node with the holding rails, and push the storage node into the cabinet along the holding rails, as shown in Figure 4-66.

      Figure 4-66  Pushing a storage node into holding rails

    2. Press the release buttons on both sides, and push the storage node into the cabinet until the storage node cannot move forward, as shown in Figure 4-67.

      Figure 4-67  Pushing a storage node into a cabinet

    3. Tighten the two captive screws on the mounting ears to secure the storage node, as shown in Figure 4-68.

      Figure 4-68  Securing 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.

Follow-up Procedure

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

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Updated: 2019-02-01

Document ID: EDOC1000175242

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