Datasheet

IBM Flex System Fabric CN4093 10Gb Converged Scalable Switch 13
The connections between the adapters installed in the compute nodes to the switch bays in the chassis
are shown diagrammatically in the following figure. The figure shows both half-wide servers, such as the
x240 with two adapters, and full-wide servers, such as the p460 with four adapters.
Figure 3. Logical layout of the interconnects between I/O adapters and I/O modules
The CN4093 switch can be installed in bays 1, 2, 3, and 4 of the Enterprise chassis. A supported adapter
card must be installed in the corresponding slot of the compute node (slot A1 when switches are installed
in bays 1 and 2 or slot A2 when switches are in bays 3 and 4). With four-port adapters, an optional
Upgrade 1 (00D5845) or Upgrade 2 (00D5847) is required for the switch to allow communications on all
four ports. With eight-port adapters, both optional Upgrade 1 (90Y3562) and Upgrade 2 (88Y6037) are
required for the switch to allow communications on six adapter ports. Two remaining ports are reserved
for future use.
In compute nodes that have an integrated dual-port 10 GbE network interface controller (NIC), NIC ports
are routed to bays 1 and 2 with a specialized periscope connector, and the adapter card in slot A1 is not
required. However, when needed, the periscope connector can be replaced with the adapter card. In this
case, integrated NIC will be disabled.