Gigabit Ethernet Interconnect Guide

• Console network switch
• Administrative network switch
• 128-port system interconnect
Optionally, the UBB will include a KVM switch, storage components, and additional servers and
network switches. The UXR is viewed as an expansion rack when the UBB is filled and additional
utility nodes are required.
A modular configuration must have a minimum of 1 control node and 4 additional nodes. The
number of nodes will increase in increments of 1, up to a maximum of 512 nodes. The maximum
number of servers might be limited by the available ports on the interconnect. The cluster
architecture has the following stipulations for modular configurations:
• A maximum of 14 CBB racks consisting of application nodes and network switches
• One UBB rack that can contain some or all of the following components:
— Control node
— Rack-mounted keyboard, mouse and monitor
— Administration network switch
— Console network switch
— KVM switch
— Myrinet system interconnect (128-port only)
— MSA storage subsystem (maximum of 2)
— Dual-bus disk shelf (maximum of 2)
• A maximum of 3 IBB racks consisting exclusively of the 128-port system interconnect (up
to 4 per rack)
• A maximum of 1 UXR, subject to interconnect port availability (if required).
The UXR cannot exceed 17 utility nodes.
1.6 Modular Configuration Solutions 17