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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 a Service Disk Backplane

Replacing a Service Disk Backplane

A service 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 service disk backplane is ready.
  • You have obtained the OceanStor 9000 V5 Version Mapping and OceanStor 9000 V5 Node Firmware Upgrade Guide of the corresponding version.
    NOTE:
    You can log in to http://support.huawei.com/enterprise/, choose Support > Cloud Storage, and click the product model to go to the document page of the product. Then, click Downloads tab page. On the Downloads tab page, click the version that you need download, the download page is displayed. And then download the documents.

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
  • 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.

    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. Slide the storage node out of the cabinet, as shown in step 1 in Figure 2-31.
    2. Press the baffle plate and slide the server out of enclosure, as shown in step 2 in Figure 2-31.

    Figure 2-31  Removing a storage node

  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 2-32.
    2. Open the ejector lever to push the enclosure cover backwards, as shown in step 2 in Figure 2-32.

      Figure 2-32  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. Take out the air duct, as shown in Figure 2-33.

    Figure 2-33  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 2-34.

    Figure 2-34  Removing a fan support

  11. Remove cables that connect the service disk backplane.
  12. Press and open the locks on the rear backplane. Vertically lift the rear backplane to the limit and pull it out in the arrow direction to remove it, as shown in step 1 in Figure 2-35.

    NOTE:

    Pictures of the backplane on a P25E node are used as an example. The method to remove the backplane of a P12E node is the same even though its latches are at the bottom.

    Figure 2-35  Removing a disk backplane

  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. Hook the hard disk backplane, and push it in the arrow direction until the latch is locked and it does not move. See Figure 2-36.

    Figure 2-36  Installing a hard disk backplane

  16. Connect the cables for the service disk backplane.
  17. Put the fan support into the enclosure, as shown in Figure 2-37.

    Figure 2-37  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 by following the instructions on the enclosure, and vertically place the air duct downwards, as shown in Figure 2-38.

    Figure 2-38  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 2-39.
    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 2-39.

      Figure 2-39  Installing an enclosure cover

  23. 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 2-40.
    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 2-40.
    3. Ensure that the storage node is horizontally installed and screwed.

    Figure 2-40  Installing 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.

  26. Upgrade the firmware and the CPLD firmware of a service disk backplane.
    1. Upgrade the firmware of the service disk backplane. For detail, see OceanStor 9000 V5 Expander Firmware Upgrade Guide. To obtain this guide, decompress the OceanStor 9000 V5 Node Firmware Upgrade Guide package.
    2. Upgrade the CPLD firmware of the service disk backplane. Upgrade the CPLD firmware of the service disk backplane to the version which required in OceanStor 9000 V5 Version Mapping by referring to the Upgrading the Backplane CPLD Firmware section in PANGEA Firmware Upgrade Guide. To obtain this guide, decompress the OceanStor 9000 V5 Node Firmware Upgrade Guide package.
  27. 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 backplane, label the replaced backplane to facilitate subsequent operations.

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Updated: 2019-07-25

Document ID: EDOC1100067965

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