NOTE
You can locate a component in either of the following ways:
l Locating a component based on alarms in DeviceManager: On the Alarms and Events page
of DeviceManager, view the help information and locate the component to be replaced.
l Locating a component based on the status of its Running/Alarm indicator: For details about the
indicators on different components, see 4.4 Running/Alarm Indicators on Power Modules,
BBUs, and Fan Modules.
Precautions
l Do not touch the connectors of a power module and a power cable.
l Remove and insert a power module with even force. Excessive force may damage the
appearance or connectors of the power module.
l Remove only one power module at a time.
l A power module must be replaced within three minutes. Otherwise, the system heat
dissipation is compromised.
Tools and Materials
l ESD wrist strap
l ESD bag
l Label
l Phillips screwdriver
Procedure
Step 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 4-25. For details about
the indicators on different components, see Running/Alarm Indicators on a 2 U Disk
Enclosure.
Figure 4-25 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.
OceanStor Dorado V3 Series
Parts Replacement
4 Replacing CRUs
Issue 05 (2019-01-30) Copyright © Huawei Technologies Co., Ltd. 29
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