Specifications

52 IBM Flex System p260 and p460 Planning and Implementation Guide
The internal connections between the node ports and the I/O module internal
ports are defined by:
򐂰 I/O modules 1 and 2
These two modules connect to the ports on an I/O expansion card in slot
position 1 for a half-wide compute node (such as the p260) or slot positions 1
and 3 for a full-wide compute node (such as the p460).
򐂰 I/O modules 3 and 4
These two modules are connected to the ports on an I/O expansion card in
slot position 2 for a half-wide compute node or slots positions 2 and 4 for a
full-wide compute node.
This connectivity is shown in Figure 3-4.
Figure 3-4 Connectivity between I/O adapter slots and switch bays
Intel computer nodes: Certain Intel compute nodes offer an integrated
local area network (LAN) on the system board (LOM). POWER based
compute nodes do not have the LOM option.
Node
bay 2
A1
A2
Node
bay 1
A1
A2
Node
bay
13/14
A1
A2
Each line between an I/O adapter and a switch is four links
A3
A4
Switch
bay 1
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Switch
bay 3
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Switch
bay 2
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Switch
bay 4
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