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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 4 x 2.5-inch Rear Disk Subrack (Applicable to 2288H V5 25-Slot Nodes)

Replacing a 4 x 2.5-inch Rear Disk Subrack (Applicable to 2288H V5 25-Slot Nodes)

This section describes how to replace a 4 x 2.5-inch rear disk subrack.

Impact on the System

Before replacing the 4 x 2.5-inch rear disk subrack, 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 disk subrack.
  • The storage node has two power modules. Ensure that both are disconnected.
  • To prevent personal injury, arrange two persons to replace the disk subrack.

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 3-71.

      Figure 3-71  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 3-71.
    3. Lever the latches on both sides upwards and remove the storage node in the direction of the arrow by holding the storage node bottom, as shown in Figure 3-72.

      Figure 3-72  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 3-73.
    2. Open the ejector lever to push the enclosure cover backwards, as shown in step 2 in Figure 3-73.

      Figure 3-73  Removing an enclosure cover

  6. Remove cables connecting to the rear disk subrack.
  7. Remove the disk module.
    1. Press the ejector release button on the drive, as shown in step 1 in Figure 3-74.

      The ejector lever automatically ejects.

      Figure 3-74  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 3-74.
    3. Wait at least 30 seconds until the disk module stops and then slowly pull it out, as shown in step 3 in Figure 3-74.
  8. Remove the rear disk subrack.
    1. Unscrew the rear disk subrack. See step 1 in Figure 3-75.

      Figure 3-75  Removing the rear disk subrack

    2. Take out the rear disk subrack. See step 2 in Figure 3-75.
  9. Place the removed rear disk subrack in an ESD bag.
  10. Take the spare rear disk subrack out of its ESD bag.
  11. Install the rear disk subrack in the chassis and tighten the screws, as shown in steps 1 and 2 in Figure 3-76.

    Figure 3-76  Installing the rear disk subrack

  12. 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 3-77.

      Figure 3-77  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 3-77.
  13. Connect cables to the rear disk subrack.
  14. 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 3-78.
    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 3-78.

      Figure 3-78  Installing an enclosure cover

  15. Put the storage node into the cabinet.
    1. Pull out the inner rails as far as they will go, as shown in Figure 3-79.

      Figure 3-79  Pulling out an inner rail

    2. Align the screws on the storage node with the notches on the inner guide rails, push the storage node inwards until you hear a sound, and ensure that the latches eject and completely block the screws to affix the storage node to the inner guide rails, as shown in Figure 3-80.

      Figure 3-80  Installing a storage node

    3. Press the release buttons on both sides and push the storage node into the cabinet along the holding rails, as shown in steps 1 and 2 in Figure 3-81.

      Figure 3-81  Pushing the server into the cabinet along the holding rails

    4. Optional: Tighten the captive screws on the mounting ears to secure the storage node, as shown in Figure 3-82.

      Figure 3-82  Securing the storage node

  16. Connect the storage node to the power sockets and peripheral devices according to the cable connection labels. Then power on the storage node.
  17. Check whether the disk subrack is successfully replaced.

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

  18. 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 disk subrack is replaced, label it to facilitate subsequent operations.

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Updated: 2019-07-25

Document ID: EDOC1100067965

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