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Parts Replacement

OceanStor 2800 V3 V300R006

This document is applicable to OceanStor 2800 V3. This document describes the procedure for replacing the parts of the storage system in terms of safety operations, preparations, and precautions.

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Distinguishing CRUs and FRUs

Distinguishing CRUs and FRUs

This chapter describes how to replace customer replaceable units (CRUs) and field replaceable units (FRUs).


CRUs are components that users can replace at the deployment site by referring to the operation guide.

  • Operators: customers
  • Replaceable modules: power modules, BBU modules, fan modules, disk modules, expansion modules, and optical modules

Customers are allowed to replace CRUs, but are prohibited from replacing other components to prevent personal injury and device damage.


FRUs are components that users can replace at the deployment site by referring to the operation guide.

  • Operators: Huawei technical support engineers and maintenance engineers as well as technical support engineers and maintenance engineers certificated by Huawei
  • Replaceable modules: controllers, interface modules, system subracks, and cables

To effectively check software and hardware status and ensure the successful replacement of an FRU, use the FRU replacement tool of OceanStor SmartKit to guide you through the replacement.

FRU and CRU List

Table 3-1 lists FRUs and CRUs.

Table 3-1 FRUs and CRUs




Power module

Interface module


System subrack

Fan module


Disk module


Expansion module


Optical module

Updated: 2019-08-30

Document ID: EDOC1000138807

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