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Parts Replacement

OceanStor 2800 V3 V300R006

This document is applicable to OceanStor 2800 V3. This document describes the procedure for replacing the parts of the storage system in terms of safety operations, preparations, and precautions.

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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 Power Module

Replacing a Power Module

This section describes how to replace a power module.

Impact on the System

During the replacement of a power module, if the redundant power module fails, the corresponding disk enclosures are unexpectedly powered off, causing all services in the disk enclosures to be interrupted.


  • A spare part is on hand.
  • The power module that you want to replace has been located.

You can locate a component in either of the following ways:

  • Log in to DeviceManager and go to the System page. On the System page, check the device view and locate the position of the component to be replaced. If the component has a Location indicator, turn on the indicator. (For details about how to turn on a Location indicator, see the online help of DeviceManager.)
  • Use the Alarm indicator of the component to locate its position.


  • Do not touch the connectors of a power module and a power cable.
  • Remove and insert a power module with even force. Excessive force may damage the appearance or connectors of the power module.
  • Remove only one power module at a time.
  • A power module must be replaced within three minutes. Otherwise, the system heat dissipation is compromised.

Tools and Materials

  • ESD wrist strap
  • ESD bag
  • Labels


  1. Perform a pre-replacement check.

    Check whether there is a redundant power module and whether the Running/Alarm indicator of the redundant power module is steady green, as shown in Figure 5-31. For details about the indicators on different components, see Running/Alarm Indicators on a Disk Enclosure.
    Figure 5-31 Running/Alarm indicator on a power module

    You can perform replacement only when a redundant power module exists and the redundant power module is working properly.

  2. Wear an ESD wrist strap.
  3. Remove the power cable.

    1. Loosen the retention clip, as shown in step 1 in Figure 5-32.
      Figure 5-32 Removing the AC power cable

    2. Pull up the retention clip, as shown in a of step 2 in Figure 5-32.
    3. Remove the AC power cable, as shown in b of step 2 in Figure 5-32.

  4. Press the latch on the power module to release the handle and pull out the power module, as shown in Figure 5-33.

    Figure 5-33 Removing a power module

  5. Put the removed power module into an ESD bag.
  6. Take the spare part out of its ESD bag.
  7. Open the handle of the spare part, insert the spare part into the empty slot, and close the handle, as shown in Figure 5-34.

    Figure 5-34 Installing a power module

  8. Connect the power cable and secure it to the power socket.

    1. Press the locker of the retention clip outwards (as shown in a of step 1 in Figure 5-35), and meanwhile slide the retention clip to the connection part of the AC power cable (as shown in b of step 1 in Figure 5-35).
      Figure 5-35 Securing the AC power cables with retention clips

    2. Loosen the retention clip, as shown in step 2 in Figure 5-35.
    3. Press the retention clip inwards to secure the connection part of the AC power cable, as shown in step 3 in Figure 5-35.

    Adjust the retention clip to ensure that it holds the AC power cable tightly.

  9. Wait about two minutes and check the status of the Running/Alarm indicator on the power module to determine whether the power module has been successfully installed. Figure 5-36 shows the location of the Running/Alarm indicator.

    • If the indicator is steady green, the power module has been successfully installed.
    • If the indicator is blinking green, the power input is normal but the disk enclosure is powered off.
    • If the indicator is steady red or off, the newly installed power module is faulty or the power module slot is faulty.
    Figure 5-36 Running/Alarm indicator on a power module

  10. Confirm the replacement.

    After the preceding procedure is complete, check services on the host for storage-related errors. If any storage-related error is reported, contact Huawei technical support.

Follow-up Procedure

After the power module is replaced, label it to facilitate subsequent operations.

Updated: 2019-08-30

Document ID: EDOC1000138807

Views: 23810

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