Huawei OceanStor V5 Series - 4 Distinguishing CRUs and FRUs; CRU vs FRU Identification

4 Distinguishing CRUs and FRUs
This chapter describes how to distinguish customer replaceable units (CRUs) and
eld replaceable units (FRUs).
CRUs
CRUs are components that customers can replace at the deployment site by
referring to the operation guides of CRUs.
● Operators: customers
● Replaceable modules: power modules, BBU modules, fan modules, disk
modules, expansion modules, and optical modules
NO TICE
Customers are allowed to replace CRUs, but are prohibited from replacing other
components, due to the risk of personal injury and device damage.
FRUs
FRUs are components that engineers can replace at the deployment site by
referring to the operation guides of FRUs.
● Operators: Huawei technical support engineers and maintenance engineers as
well as technical support engineers and maintenance engineers
certied by
Huawei
● Replaceable modules: controllers, interface modules, system subracks,
management modules, data switches, cables, assistant cooling units, and
quorum servers
NO TICE
To eectively 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.
OceanStor V5 Series
Parts Replacement 4 Distinguishing CRUs and FRUs
Issue 15 (2019-12-30) Copyright © Huawei Technologies Co., Ltd. 12