UDA Inter-System Connections for IntelliFlex - IntelliFlex Platforms

Teradata® Hardware Product Guide

BAR Managed Servers
IntelliBase Platforms
IntelliFlex Platforms
December 2018
Product Guide

The InfiniBand connectivity between the nodes and the switches depends on the number of cabinets and nodes.

  • The number of UDA uplinks is based on a node-to-uplink ratio of 6:1, with a minimum of three uplinks, based on the smaller of the systems being connected. For example, a 30-node IntelliFlex system connected to a 24-node Hadoop Appliance system would require four cables (6:1 ratio based on the 24-node system).
  • Uplinks are connected switch to switch.
  • Connect the UDA uplinks:
    • For systems containing a single pair of first-tier switches, connect the UDA uplinks to these switches in cabinet 1.
    • For systems containing multiple first-tier and a single pair of second-tier switches, connect the UDA uplinks to the second-tier switches.
    • For systems with multiple pairs of second-tier switches, evenly distribute the UDA uplinks to the second-tier switches for best performance.
  • UDA connections between systems start at the highest switch port on both systems, and connect in descending order.