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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 a Service Disk Backplane

Replacing a Service Disk Backplane

A front service disk backplane (service disk backplane for short) provides power and data transmission channels for disks.

Impact on the System

Before replacing a service disk 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 service disk backplane is ready.

Precaution

  • Only professional technical support engineers are allowed to replace a backplane.
  • A storage node has two power modules. Ensure that both are disconnected.
  • To prevent personal injury, arrange two persons to replace it.

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.

    NOTE:
    • When removing the storage node, you can first remove disk modules to lighten the storage node. For details about how to remove a disk module, see 2 in Replacing a Service Disk Module.
    • Place the removed disk modules on an ESD-free operating platform in sequence and label them.

    1. Loosen the captive screws on the panel using a Phillips screwdriver, as shown in step 1 in Figure 4-37.

      Figure 4-37  Removing a storage node

    2. Slowly pull the storage node out along the guide rails, as shown in step 2 in Figure 4-37.
    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 4-37.
  5. Remove the disk module. For details, see 2 in Replacing a Service Disk Module.

    Correctly record the mapping between the disk modules and slots. Ensure that disk modules are inserted into the same slots before and after the removal. Otherwise, services may be affected.

  6. 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 4-38.
    2. Open the ejector lever to push the enclosure cover backward, as shown in step 2 in Figure 4-38.

      Figure 4-38  Removing an enclosure cover

  7. Optional: Remove the riser card tray. For details, see 6 in Replacing a Riser Card.

    NOTE:

    If the configured riser card is with full height and full length, remove the riser card tray first.

  8. Lift the air duct, as shown in Figure 4-39.

    Figure 4-39  Removing an air duct

  9. Remove the fan module. For details, see 6 in Replacing a Fan Module.
  10. Press and hold down the latches on both sides of a fan support, and lift the fan support, as shown in steps 1 and 2 in Figure 4-40.

    Figure 4-40  Removing a fan support

  11. Remove cables that connect the service disk backplane.
  12. Remove a service disk backplane.
    1. Unscrew and lift the backplane until it is stuck, as shown in step 1 in Figure 4-41.

      Figure 4-41  Removing an enclosure cover

    2. Remove the backplane in the arrow direction, as shown in step 2 in Figure 4-41.
  13. Place the removed hard disk backplane in an ESD bag.
  14. Take the spare front hard disk backplane out of its ESD bag.
  15. Install the service disk backplane.
    1. Hook the service disk backplane, and move it downward until its latches automatically lock, as shown in step 1 in Figure 4-42.

      Figure 4-42  Installing an enclosure cover

    2. Screw the service disk backplane, as shown in step 2 in Figure 4-42.
  16. Connect the cables for the service disk backplane.
  17. Put the fan support into the enclosure, as shown in Figure 4-43.

    Figure 4-43  Installing a fan support

  18. Install the fan module. For details, see 9 in Replacing a Fan Module.
  19. 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 4-44.

    Figure 4-44  Installing an air duct

  20. Optional: Install the riser card tray. For details, see 12 in Replacing a Riser Card.

    NOTE:

    If the configured riser card is with full height and full length, install the riser card tray.

  21. Install the disk module. For details, see 5 in Replacing a Service Disk Module.

    Ensure that disk modules are inserted into the same slots before and after the removal. Otherwise, services may be affected.

  22. 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 4-45.

      Figure 4-45  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 4-45.
  23. 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 4-46.

      Figure 4-46  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 4-47.

      Figure 4-47  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 4-48.

      Figure 4-48  Securing a storage node

  24. Connect the storage node to the power sockets and peripheral devices according to the cable connection labels. Then power on the storage node.
  25. Check whether the backplane is successfully replaced.

    • If the disks are powered on properly and the disk indicators are steady on, the backplane is successfully replaced.
    • If the disk indicators are off, the backplane fails to be replaced. Install it again or contact technical support.

Follow-up Procedure

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

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Updated: 2019-02-01

Document ID: EDOC1000175242

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