1-20
C122-B001-02EN
CHAPTER 1 PRIMEQUEST Overview
Figure 1.13 Duplication of the main components
Hot maintenance function
The hot maintenance function disconnects a unit from the system for maintenance
work on the unit, without stopping system operation.
Hot maintenance is possible because the main components and important units in a
PRIMEQUEST-series machine are in redundant configurations, as described below:
z
Since the power supply units (PSUs) and fans are in redundant configurations as
standard, hot maintenance of PSUs and fans is possible.
z
Since the MMB, which provides the server management function, is in a redundant
configuration, hot maintenance of the MMB is possible.
z
Hot maintenance of an SB, IO_Unit, HDD, system interconnect, PCI card, GSWB,
and other devices is possible under specific conditions.
z
Hot maintenance of a non-duplicated KVM unit and OPL is also possible.
Management LAN
duplication
Business LAN
duplication
Crossbar
MMB
#0
MMB
#1
IOU
#1
IOU
#2
IOU
#3
IOU
#4
IOU
#5
IOU
#6
IOU
#7
SB
#1
SB#0
SB
#2
SB
#3
SB
#4
SB
#5
SB
#6
SB
#7
GSWB#0
GSWB#1
BP
BP
IOU#0
Summary of Contents for PRIMEQUEST 440
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Page 178: ...5 34 C122 B001 02EN CHAPTER 5 Business LAN Management by GSWB ...
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