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Figure 37: Controller wiring diagram (customer data network)
Legend
1 PCIe3 slot 1, HBA for
SAN connectivity (FC or
iSCSI)
2 PCIe3 slot 4, HBA for
SAN connectivity (FC or
iSCSI)
SAS Wiring Diagrams (Controller to Controller)
Complete back-end data path redundancy is accomplished by providing
Controller 1 and Controller 2 access to the data path channels for I/O module 0
and I/O module 1 at all times during normal operations:
The SAS connections between the Controller HBAs provide access to the
•
data path channels through HBA port 2 and port 3.
Controller 1 accesses the data path channels for I/O module 0 through
•
direct SAS connections to the Drive Enclosure strings through HBA port 1
and port 2.
Controller 1 accesses the data path channels for I/O module 1 through
•
Controller 2, HBA port 2 and port 3.
Controller 2 accesses the data path channel for I/O module 1 through direct
•
SAS connections to the Drive Enclosure strings through HBA port 1 and
port 2.
Controller 2 accesses the data path channels for I/O module 0 through
•
Controller 1, HBA port 2 and port 3.
3 PCIe3 slot 5, HBA for SAN connectivity (FC
or iSCSI)
Wiring Diagrams
105
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