Figure 4-2. Quad Redundancy Configuration For A Redundant Fibre Channel Fabric - Compaq 112726-001 - ProLiant - 6500 Administrator's Manual

4-10 Compaq Parallel Database Cluster Model PDC/O5000 for Oracle8i and Windows 2000 Administrator Guide
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The two even-numbered Fibre Channel SAN Switches connect to port 2
of the array controllers. Fibre Channel SAN Switch #2 connects to array
controller A, port 2 in each storage subsystem. Fibre Channel SAN
Switch #4 connects to array controller B, port 2 in each storage
subsystem.
Node 1
Fibre Channel
SAN Switch #1
Fibre Channel
SAN Switch #3
P1 P2
A
P1 P2
B
Storage Subsystem #1
Figure 4-2. Quad redundancy configuration for a redundant Fibre Channel
Fabric
A quad redundancy configuration provides greater component availability than
a dual redundancy configuration, but requires a greater investment in
hardware.
See Chapter 2, "Cluster Architecture," for more details on implementing a
quad redundancy configuration in redundant Fibre Channel Fabrics.
Node 2 Node 3
P1 P2
A
P1 P2
B
Storage Subsystem #2
Host Adapters (4)
Node 4
Fibre Channel
SAN Switch #2
Fibre Channel
SAN Switch #4