Replacing a Power Module (for OceanStor 18500 V5, 18500F V5, 18800 V5, or 18800F V5)

Prerequisites

• The 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:

• Locating a component based on alarms in DeviceManager: On the Alarms and Events page of DeviceManager, view the help information and determine the ID of the component to be replaced. Then locate the component at your site based on its ID.
• Locating a component based on the status of its Running/Alarm indicator: For details about the indicators on different components, see "Indicator Introduction" of each component in the Product Description specific to your product model and version.

• Before replacing a power module, ensure that the other power module is working properly.
• Check whether connectors of other power modules are securely inserted. Otherwise, connectors of other power modules may become loose during replacement and may be powered off unexpectedly.

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 of the power module or cause faults.
• 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
• Phillips screwdriver

Procedure

1. Perform a pre-replacement check.
   1. Check system status.

      Start SmartKit and choose Home > Storage > Routine Maintenance > Health Check. On the Health Check page, perform inspection as instructed. For details, see Checking System Status.

      If any items fail the inspection, rectify the faults by performing the recommended actions in the inspection reports. Ensure that all other parts except the parts to be replaced are working properly.

   2. Check the status of the parts to be replaced.

      Start SmartKit and choose Home > Storage > Parts Replacement > Parts Replacement. On the Parts Replacement page, click FRU Replacement. Then complete the check before the replacement as prompted. For details, see Replacing an FRU.

      You can proceed to next steps only when all items pass the pre-replacement check and the replacement page is displayed. If any item fails, rectify the fault as prompted.

2. Wear an ESD wrist strap.
3. Remove the power cable.
   1. Remove the velcro strap that secures the power cable, as shown in step 1 in Figure 8-81.
      Figure 8-81 Removing the AC power cable
      
   2. Remove the AC power cable, as shown in step 2 in Figure 8-81.

4. Press the latch on the power module and pull the handle of the power module outwards to pull out the power module, as shown in Figure 8-82.
   Figure 8-82 Pulling out the power module
   

5. Put the removed power module into an ESD bag.
6. Take the spare part out of its ESD bag.
7. Insert the spare part into the empty slot, as shown in Figure 8-83.
   Figure 8-83 Inserting the power module into the empty slot
   

8. Connect the power cable.
   1. Connect the power cable to the cable port on the spare part that has been inserted, as shown in step 1 in Figure 8-84.
      Figure 8-84 Connecting the power cable
      
   2. Secure the power cable using a velcro strap, as shown in step 2 in Figure 8-84.

   Adjust the velcro strap to ensure that it fastens the power cable so that the connector of the power cable is secured 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 8-85 or Figure 8-86 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 controller enclosure is powered off.
   • If the indicator is steady yellow or off, the newly installed power module is faulty or the power module slot is faulty.
   Figure 8-85 Running/Alarm indicator on a power module
   
   Figure 8-86 (Optional) Running/Alarm indicator on a power module
   

10. Confirm the replacement.
    1. Perform a post-replacement inspection.

       After the parts replacement, return to the SmartKit page and click Replaced. Then complete the check after the replacement as prompted.

    2. Check system status.

       On the Parts Replacement page, click Inspection to check the system status again. If any item fails inspection, rectify the fault based on the suggestions in the inspection report.

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

Follow-up Procedure

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