Fujitsu primequest 2400E2 Design Manual page 54

2.6 PCI Box (4/4)
A Configuration for Redundancy of PCI Boxes and PCI Box LH modules

The effects of a failed PCI Box are taken into account.
PRIMEQUEST
Partition#0
SB IOU
Stop
Start in a
degraded state
Partition#1
SB IOU
Start in a
Stop
degraded state
A Configuration for Failure Isolation of PCI Boxes

PRIMEQUEST
Partition#0
SB IOU
Not
affected
Partition#1
SB IOU
Stop
For details on redundancy of PCI Express cards and connection destinations, refer to
PRIMEQUEST 2000 Series Design Guide
PCI Box #0
PCI Box LH #0 PCI Box LH #1
PCI Box LH #0
Redundancy of the PCI Boxes and PCI Box LH
modules
PCI Box #0
PCI Box LH #0
PCI Box LH #1
The PCI Box cannot be used
until it is repaired.
Failure
PCI Box #1
PCI Box LH #1
The PCI Box is
disconnected
by a reboot.
Failure
PCI Box #1
PCI Box LH #0 PCI Box LH #1
53
Advantage
Even if one PCI Box fails, the failed
PCI Box can be disconnected by a
reboot and the system can be
started using the other PCI Box.
Disadvantage
Both partitions stop when a PCI Box
fails.
The failure in partition#1 is isolated from partition#0.
Advantage
This configuration provides failure
isolation. Even if the PCI Box for a
partition fails, the other partition is
not affected.
Disadvantage
The PCI Box for the relevant partition
cannot be used until the PCI Box is
repaired.
"3.3.5 Network Configuration".
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