Huawei OceanStor V5 Series - Page 123

disk enclosure. Only one expansion module is working, causing the system
reliability to degrade. You are advised to replace an expansion module during o-
peak hours.
Prerequisites
● A spare part is on hand.
● The expansion 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 dierent components, see Indicator Introduction of each
component in the Product Description specic to your product model and version.
● You have conrmed that the cables of the expansion module to be replaced
are properly connected using Huawei Storage Product Networking Assistant
(https://support.huawei.com/onlinetoolsweb/sna/#/home).
● The cable connection positions of the expansion module are labeled on the
cables.
● The cables have been disconnected from the expansion module that you want
to replace.
Before removing a SAS cable, gently push the connector of the cable inward. Then pull the
plastic ring on the connector outward until the cable is completely removed from the
expansion module.
Precautions
● Remove and insert an expansion module with even force. Excessive force may
damage the appearance or connectors of the expansion module.
● An expansion module must be replaced within
ve minutes. Otherwise, the
system heat dissipation is compromised.
Tools and Materials
● ESD wrist strap
● ESD bag
● Labels
Procedure
Step 1 Check status before replacement.
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 6.1.2 Checking System Status.
OceanStor V5 Series
Parts Replacement 6 Replacing CRUs
Issue 15 (2019-12-30) Copyright © Huawei Technologies Co., Ltd. 114