Fujitsu Siemens Computers SPARC Enterprise M4000, User Manual

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2-1
C H A P T E R
2
What You Must Know Before Using
DR
This chapter provides information you must know to successfully use the DR
functions.
2.1 System Configuration
This section describes the conditions, premises, and actions for operating the DR
functions to construct a system.
2.1.1 System Board Components
There are three types of system board components that can be added and deleted by
DR: CPU, memory, and I/O device.
FIGURE 2-1
and
FIGURE 2-2
show examples of a
system board of a midrange server that is divided into one Uni-XSB, and into Quad-
XSBs.
FIGURE 2-3
and
FIGURE 2-4
show examples of a system board of a high-end
server that is divided into one Uni-XSB, and into Quad-XSBs.
Note – Due to diagnostic requirements, the DR function works only on boards that
have at least one CPU and memory.