Cable Indirect-Attached Blade Servers (QDR)
In this configuration, each of the Oracle Fabric Interconnects are connected through redundant links to each IB switch. Additionally, each blade-server controller has two connections to each IB switch, and indirectly, to each Oracle Fabric Interconnect.
You can connect two cables to each blade-server controller. However, using two cables reduces the number of available ports, which reduces the total number of servers that can be connected. There is no restriction as to which ports on the Oracle Fabric Interconnect connect to which ports on the controller.
- Make sure that the subnet manager is shut down and the LID table is removed.
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Connect ports on the first Oracle Fabric Interconnect (Laverne) to the
second IB switch.
You will need one IB connection to the IB switch for each blade server.
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Connect ports on the second Oracle Fabric Interconnect (Shirley) to the
first IB switch.
At the completion of this step, each Oracle Fabric Interconnect is connected to the IB fabric through one of the two IB switches. The cross-connection between the IB switches creates the merged fabric.
- Connect one or more of the ports on the second IB switch to one or more of the ports on blade-server controller “A” in each blade server enclosure.
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Connect one or more of the ports on the first IB switch to one or more of
the ports on blade-server controller “B.”
At the completion of this step, the Oracle Fabric Interconnects and hosts has one or two connections to each controller in each blade server.
No.Description1, 2Oracle Fabric Interconnect F1-15s (or F1-4s).3QDR speed connections indirectly connect the Oracle Fabric Interconnects together through the intermediary IB switches.4, 5Intermediary QDR speed IB switches provide IB fan out, and connect blade servers to the IB fabric.6, 7, 8, 9QDR speed blade servers.10Blade-server controllers connect to Oracle Fabric Interconnects to provide QDR links to individual blades (host servers).11Individual blades (host servers) that are internally connected to the blade-server controllers.Each Oracle Fabric Interconnect has a connection to each blade server through each of the IB switches, and the Oracle Fabric Interconnects are connected in a merged fabric at the IB-switch level. You can use the remaining ports on the IB switches to connect to hosts, and the remaining ports on the Oracle Fabric Interconnects to connect to either IB switches or direct-connected hosts.
- Complete merging the fabric.