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Parts Replacement

OceanStor V5 Series V500R007

This document is applicable to OceanStor 5110 V5, 5110F V5, 5300 V5, 5300F V5, 5500 V5, 5500F V5, 5600 V5, 5600F V5, 5800 V5, 5800F V5, 6800 V5, 6800F V5, 18500 V5, 18500F V5, 18800 V5, and 18800F V5. This document describes the procedure for replacing the parts of the storage systems 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 (for 5300F V5/5500 V5/5500F V5)

Replacing a Power Module (for 5300F V5/5500 V5/5500F V5)

This section describes how to replace a power module. Except that there is a slight difference on removing and inserting power cables between AC and DC power modules, other operations performed for them are the same. This section uses AC power modules as an example.

Impact on the System

During the replacement of a power module, if the redundant power module fails, system services will be interrupted.

Prerequisites

  • The spare part of the power module is ready.
  • The power module that you want to replace has been located.
NOTE:

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.
  • Before replacing a power module, ensure that the other power module works properly.
  • One BBU is installed in each power module. When a power module is being replaced, ensure that the BBU in the other power module is working correctly.

Precautions

  • 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
  • Label
  • Phillips screwdriver

Procedure

  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 5-9. For details about the indicators on different components, see Running/Alarm Indicators on a 2 U Controller Enclosure.
    Figure 5-9 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.

    • Remove the AC power cable.
    1. Loosen the retention clip, as shown in step 1 in Figure 5-10.
      Figure 5-10 Removing the AC power cable

    2. Pull up the retention clip, as shown in a of step 2 in Figure 5-10.
    3. Remove the AC power cable, as shown in b of step 2 in Figure 5-10.
    • Remove the DC power cable.
    1. Turn off the circuit breaker which connects to the DC power module.
    2. Remove the protective cover on the DC power module, as shown in step 1 of Figure 5-11.
      Figure 5-11 Removing the DC power cable

    3. Unfasten the screws of the DC power cable with the Phillips screwdriver, remove the shock absorption sheets, washers, and OT terminal round holes, as shown in step 2 of Removing the DC power cable.
      NOTE:

      When unfastening the screws from the DC power cable, prevent the shock absorption sheets and washers from sliding off.

    4. Install the protective cover on the DC power module, as shown in step 3 of Removing the DC power cable.

  4. Press the latch on the power module to release the handle and pull out the power module, as shown in Figure 5-12.

    NOTE:

    The procedure for removing a DC power module is the same as that for removing an AC power module. This step uses the AC power module as an example.

    Figure 5-12 Removing an AC power module

  5. Press the latch on the BBU and pull out the BBU, as shown in Figure 5-13.

    Figure 5-13 Removing a BBU

  6. Put the removed power module into an ESD bag.
  7. Take the replacement power module out of its ESD bag.
  8. Insert the BBU into the replacement power module until it clicks into place, as shown in Figure 5-14.

    Figure 5-14 Installing a BBU

  9. Open the handle of the replacement power module, insert the power module into the empty slot, and close the handle, as shown in Figure 5-15.

    NOTE:

    The procedure for installing a DC power module is the same as that for installing an AC power module. This step uses the AC power module as an example.

    Figure 5-15 Installing an AC power module

  10. Insert the power cables.

    • Secure the AC power cables with retention clips.
    1. Press the locker of the retention clip outwards (as shown in a of step 1 in Figure 5-16), and meanwhile slide the retention clip to the connection part of the AC power cable (as shown in b of step 1 in Figure 5-16).
      Figure 5-16 Securing the AC power cables with retention clips

    2. Loosen the retention clip, as shown in step 2 in Figure 5-16.
    3. Press the retention clip inwards to secure the connection part of the AC power cable, as shown in step 3 in Figure 5-16.
    NOTE:

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

    • Connect the DC power cables.
    1. Remove the protective cover on the DC power module, as shown in step 1 of Figure 5-17.
      Figure 5-17 Connecting the DC power cable

    2. Unfasten the screws of the DC power cable using the Phillips screwdriver, put the screws through the shock absorption sheets, washers, and OT terminal round holes in sequence, connect the OT terminal of the black cable to the RTN (+) end, and the OT terminal of the blue cable to the NEG (-) end, and then fasten the screws, as shown in step 2 of Figure 5-17.
      NOTE:
      • When unfastening the screws from the DC power cable, prevent the shock absorption sheets and washers from sliding off.
      • The colors of DC power cables that connect to the anode and cathode of the DC power supply are subject to the colors of the DC power cables actually configured in users' equipment rooms.
    3. Install the protective cover on the DC power module, as shown in step 3 of Figure 5-17.
    4. Turn on the circuit breaker which connects to the DC power module.

  11. Wait approximately two minutes and check the status of the Running/Alarm indicator on the power module to determine whether the power module is successfully installed. Figure 5-18 shows the location of the Running/Alarm indicator.

    • If the indicator is steady green, the power module is successfully installed.
    • If the indicator is blinking green, the power input is normal but the controller 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 5-18 Running/Alarm indicator on a power module

  12. Confirm the replacement.

    After the preceding procedure is complete, check services on the host for any storage-related error. 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.

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Updated: 2019-07-11

Document ID: EDOC1000181634

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