Huawei OceanStor Dorado V3 Series - Page 20

l Before replacing a power module, ensure that the other power module works properly.
l 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 properly.
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 4-1. For details about the
indicators on different components, see Running/Alarm Indicators on a Dorado5000 V3
Controller Enclosure.
Figure 4-1 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.
Step 2 Wear an ESD wrist strap.
Step 3 Remove the power cable.
l Remove the AC power cable.
OceanStor Dorado V3 Series
Parts Replacement
4 Replacing CRUs
Issue 05 (2019-01-30) Copyright © Huawei Technologies Co., Ltd. 12