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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 System Disk Backplane

Replacing a System Disk Backplane

A system disk backplane provides power and data transmission channels for disks.

Impact on the System

Before replacing a backplane, you must power off the storage node. This will adversely affect the services running on the node.

Prerequisites

The replacement system 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
  • Electrostatic discharge (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 enclosure.
    1. Slide the storage node out of the cabinet, as shown in step 1 in Figure 3-38.
    2. Press the baffle plate and slide the storage node out of enclosure, as shown in step 2 in Figure 3-38.

    Figure 3-38  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 3-39.
    2. Open the ejector lever to push the enclosure cover backwards, as shown in step 2 in Figure 3-39.

      Figure 3-39  Removing an enclosure cover

  6. Disconnect cables for the system disk backplane.
  7. Unscrew the system disk module and vertically lift it, as shown in Figure 3-40.

    Figure 3-40  Removing the system disk module

  8. For details about how to remove the system disk module, see 2 in Replacing a System Disk Module.
  9. Unscrew the system disk backplane and remove the latch from the system disk backplane, remove the system disk backplane, as shown in steps 1 and 2 in Figure 3-41.

    Figure 3-41  Removing a system disk backplane

  10. Put the removed system disk backplane into an ESD bag.
  11. Take the replacement system disk backplane out of its ESD bag.
  12. Insert the disk backplane in the arrow direction until it does not move, and screw the backplane, install the latch from the system disk backplane, as shown in steps 1 and 2 in Figure 3-42.

    Figure 3-42  Installing a system disk backplane

  13. Install the system disk module in the enclosure and screw the module, as shown in Figure 3-43.

    Figure 3-43  Installing the system disk module

  14. Connect the cables for the system disk backplane.
  15. Install the system disk module. For details, see 6 in Replacing a System Disk Module.
  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 3-44.
    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 3-44.

      Figure 3-44  Installing an enclosure cover

  17. Connect the storage node to the power sockets and peripheral devices according to the cable connection labels. Then power on the storage node.
  18. 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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