Hardware Redundancy And Hot Maintenance Function - Fujitsu PRIMEQUEST 480 System Design Manual

1.2.1.7

Hardware redundancy and hot maintenance function

The main components in the PRIMEQUEST-series machines are made redundant to
improve business continuity.
Also, PRIMEQUEST supports the hot maintenance function under certain conditions,
so that maintenance components can be disconnected and installed during system
operation. However, replacing components is a task handled by Fujitsu maintenance
personnel.
Hardware redundant configuration
The redundant configurations of the main hardware components are described below:
Internal chipset
Board
Power supply unit
Cooling fan unit
Other main components The MMB, different types of LANs, the crossbar, and
C122-B001-02EN
The important control part of the PRIMEQUEST-
dedicated internal chipset is duplicated.
For most board types, two or more boards can be
mounted for a redundant configuration. Therefore, if
one board fails, operation can continue with another
board.
Redundant power supply units are provided, so if one
power supply unit fails, operation can continue with
another power supply unit. A dual power feed has been
prepared as an option.
Redundant cooling fan units are also provided, so if one
fan unit becomes faulty, operation can continue with
another fan unit cooling the system.
other main components are duplicated (standard), and if
one system fails, operation can continue with the other
system.
Note: The optional GSWB can also be duplicated,
depending on the operating method.
1.2 PRIMEQUEST Features
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