2.1 Classification of procedures
The complexity of maintenance procedures varies significantly. Procedures
have been assigned to one of three unit categories, indicating the level of
difficulty and required qualification.
At the beginning of each procedure, the involved unit type is indicated by one of
the symbols introduced in this section.
I Please ask your local Fujitsu service center for more detailed
information.
2.1.1 Customer Replaceable Units (CRU)
Customer Replaceable Units are intended for customer self service and may be
installed or replaced as hot-plug components during operation.
I Components that the customer is entitled to replace may differ according
to the service form in his country.
Hot-plug components increase system availability and guarantee a high degree
of data integrity and fail-safe performance. Procedures can be carried out
without shutting down the server or going offline.
Components that are handled as Customer Replaceable Units
– Hot-plug power supply units
– Hot-plug fan modules
– Hot-plug HDD / SSD modules
Non hot-plug peripherals that are handled as Customer Replaceable Units
– Keyboard
– Mouse
Customer Replaceable Units (CRU)
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