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PRIMEQUEST 2000 Series Design Guide
Copyright 2016-2017 FUJITSU LIMITED
3.2.4 Configuration Example (C) - Reserved SB Switching
R
: Reserved SB
H
: Home SB
Redundant configuration that is based on a spare system board (Reserved SB)
SB#3 is set as a Reserved SB for PPAR#0, PPAR#1, and PPAR#2.
If a failure occurs on the SB of a PPAR block, the system continues its operation by
disconnecting the failed SB, incorporating the spare SB, and then restarting the PPAR block.
Configuration and management costs can be reduced.
•
No additional software is required because the availability is based on hardware.
•
Without additional hardware or special settings, configurations and operations can be
achieved just by setting the firmware.
Example: Small-to-medium-sized high availability system, FT server replacement
(excluding
nonstop systems)
SB#0
CPU
CPU
Memory
Memory
IO unit
PCI
ca
rd
PCI
ca
rd
PCI
ca
rd
PCI
ca
rd
SB#1
CPU
CPU
Memory
Memory
IO unit
PCI
ca
rd
PCI
ca
rd
PCI
ca
rd
PCI
ca
rd
Redundancy Redundancy
Redundancy Redundancy
SB#2
CPU
CPU
Memory
Memory
IO unit
PCI
ca
rd
PCI
ca
rd
SB#3
CPU
CPU
Memory
Memory
IO unit
PCI
ca
rd
PCI
ca
rd
Redundancy
Redundancy
Partition#0
Partition#1
Partition#2
PRIMEQUEST 2800E3
R
R
R
H
H
H
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