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PRIMEQUEST 2000 Series Design Guide
IOU
1000Base-T (Dual)
PCI Express card
FC card (Dual)
1000Base-T (Dual)
FC card (Dual)
Duplicated
- FC
card (Single)
=> FC card (multiple channels)
- Unused 1000Base-T ports are used.
Duplicated
Duplicated
Duplicated
1000Base-T (Dual)
Duplicated
This configuration is not correct because the duplication does
not make sense if the PCI Express card fails.
Incorrect Example
Advantage: The numbers of extended I/O cabinets and PCI Boxes can
be reduced.
Disadvantage: If the PCI Express card fails, multiple ports cannot be
used.
* Because the card is duplicated, the system can continue to operate safely.
3.3.5 Network Configuration (3/5)
Configuration That Focuses on Redundancy
Multiple channel ports on a PCI Express card are used effectively.
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PCI Box connection card
PCI Box
1000Base-T (Dual)
FC card (Single)
Empty
1000Base-T (Dual)
FC card (Single)
Empty
Not used
Not used
Duplicated
Duplicated
PCI Box LH
#0
PCI Box LH
#1
PCI Box connection card
IOU
PCI Express card
Configuration That Focuses on Hot Swap
Considering the range of impact during a PCI Express card failure, for connections with a PCI
Express card (single card), only one port is used when using a multi-port card.
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