Replacing A Controller (For 5300F V5/5500 V5/5500F V5) - Huawei OceanStor V5 Series Parts Replacement

OceanStor V5 Series
Parts Replacement
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Follow-up Procedure
After the controller is replaced, label it to facilitate subsequent operations.

7.4.2 Replacing a Controller (for 5300F V5/5500 V5/5500F V5)

This section describes how to replace a controller.
Impact on the System
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Prerequisites
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Issue 15 (2019-12-30)
NO TICE
If the version of the newly installed controller is inconsistent with that of the
faulty controller, the controller will synchronize the version after the
replacement. This process takes about 30 minutes and the maximum duration
is 60 minutes. If the duration exceeds 60 minutes, contact Huawei technical
support. During the synchronization, do not remove the controller or power
off the storage system.
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.
After the preceding procedure is complete, check services on the host for
storage-related errors.
During the replacement of a controller, all services on the to-be-replaced
controller are switched to the peer controller, with a 5s to 10s storage I/O
suspension. The service switchover duration increases and controller
replacement may fail if the service load is heavy.
During the replacement of a controller, system performance and reliability are
compromised. Therefore, replace a controller during off-peak hours.
If the controller that you want to replace is processing services, ensure that its
CPU usage does not exceed 40% before replacing it.
The spare part is on hand.
The controller 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
Product Description specific to your product model and version.
component in the
The cable connection positions of the controller that you want to replace are
labeled on the cables.
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