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82 Operating manual RX600 S4
Hot-plug components CSS components
8.1 Hot-plug components
This section describes how to handle the hot-plug components and/or how to
modify your server hardware (e.g. adding/replacing hot-plug power supply units
or hot-plug HDD modules).
The hot-plug procedure increases the availability of system operation and
guarantees a high degree of data integrity and failsafe performance.
8.1.1 Replacing the hot-plug power supply unit
The server has two hot-plug power supply units. This ensures redundant power
supply. If one power supply unit fails, the other unit ensures operation can
continue uninterrupted. The defective power supply unit can be replaced online.
V CAUTION!
When replacing a non-defective hot-plug power supply unit in a non-
redundant configuration (only one power supply unit), the server must
be switched off first.