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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 12 x 3.5-Inch Rear Disk Backplane

Replacing a 12 x 3.5-Inch Rear Disk Backplane

A 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. Exercise caution when performing this operation.

Prerequisites

The spare part is ready.

Precaution

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

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. Loosen the captive screws on the storage node panel using a screwdriver, as shown in step 1 in Figure 5-78.

      Figure 5-78  Pulling out a storage node

    2. Pull out the storage node along the guide rails away from the cabinet, as shown in step 2 in Figure 5-78.
    3. Push the release button upward, and remove the storage node with the inner rails. See Figure 5-79. Note that four people are required to lift the storage node.

      Figure 5-79  Removing the storage node from the holding rails

  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 5-80.
    2. Open the ejector lever to push the enclosure cover backwards, as shown in step 2 in Figure 5-80.

      Figure 5-80  Removing an enclosure cover

  6. Lift the air duct according to the signs on the air duct, as shown in Figure 5-81.

    Figure 5-81  Removing the air duct

  7. Remove the fan module.
    1. Press the latches on both sides of the fan module to unlock it, as shown in step 1 in Figure 5-82.

      Figure 5-82  Removing a fan module

    2. Lift the fan module slowly, as shown in step 2 in Figure 5-82.
    3. When the fan module is loose, remove it from the slot.
  8. 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 5-83.

    Figure 5-83  Removing a fan support

  9. Remove cables that connect the rear disk backplane. For details about cable port positions, see Internal Cabling for P36X/C36X.
  10. Remove the disk module.
    1. Press the ejector release button on the drive, as shown in step 1 in Figure 5-84.

      The ejector lever automatically ejects.

      Figure 5-84  Removing a disk module

    2. Hold the ejector lever, and pull the disk module out by approximately 3 cm, as shown in step 2 in Figure 5-84.
    3. Wait at least 30 seconds until the disk module stops and then slowly pull it out, as shown in step 3 in Figure 5-84.
  11. Remove the disk backplane.
    1. Unscrew the rear disk enclosure. See step 1 in Figure 5-85.

      Figure 5-85  Disassembling the rear disk enclosure (1)

    2. Pull out the rear disk enclosure. See step 2 in Figure 5-85.
    3. Press the buttons on both sides to pull the rear disk enclosure out of the chassis, as shown in Figure 5-86.

      Figure 5-86  Disassembling the rear disk enclosure (2)

    4. Press and open the locks on the rear disk backplane. Vertically lift the rear disk backplane to the limit and pull it out in the arrow direction to remove it, as shown in step 1 in Figure 5-87.

      Figure 5-87  Removing the disk backplane

  12. Place the removed disk backplane in an ESD bag.
  13. Take the spare rear disk backplane out of its ESD bag.
  14. Install the rear disk backplane.
    1. Hook the disk backplane, and push it in the arrow direction until the latch is locked and it does not move. See Figure 5-88.

      Figure 5-88  Installing the disk backplane

    2. Push the rear disk enclosure into the chassis and tighten the screws, as shown in Figure 5-89.

      Figure 5-89  Installing the rear disk enclosure

  15. Install the disk module.
    1. Raise the ejector lever and push the disk module in along the guide rails until it does not move, as shown in step 1 in Figure 5-90.

      Figure 5-90  Installing a disk module

    2. Ensure that the ejector lever is fastened to the beam, and lower the ejector lever to completely insert the disk module into the slot, as shown in step 2 in Figure 5-90.
  16. Connect cables to the rear disk backplane. For details about cable port positions, see Internal Cabling for P36X/C36X.
  17. Put the fan support into the enclosure, as shown in Figure 5-91.

    Figure 5-91  Installing a fan support

  18. Insert the fan module along the guide rails into the slot until you hear a click. Check that the fan cable connector is securely inserted into the mainboard connector, as shown in Figure 5-92.

    Figure 5-92  Installing 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 5-93.

    Figure 5-93  Installing an air duct

  20. 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 5-94.

      Figure 5-94  Installing an enclosure cover

    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 5-94.
  21. Put the storage node into the cabinet.
    1. Lift the storage node, align the inner rails with the holding rails, and push the storage node into the rack. See Figure 5-95. Note that four people are required to lift the storage node.

      Figure 5-95  Installing the storage node

    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 5-96.

      Figure 5-96  Pushing the storage node into the cabinet

    3. Tighten the captive screws on the mounting ears to secure the storage node, as shown in Figure 5-97.

      Figure 5-97  Securing a storage node

  22. Connect the storage node to the power sockets and peripheral devices according to the cable connection labels. Then power on the storage node.
  23. 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 Huawei technical support.

  24. 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 the rear disk backplane is replaced, label it to facilitate subsequent operations.

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Updated: 2019-07-25

Document ID: EDOC1100067965

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