IntelliFlex Intra-System Connections

Teradata® Hardware Product Guide

brand
Hardware
prodname
BAR Managed Servers
IntelliBase Platforms
IntelliFlex Platforms
category
Product Guide
featnum
B035-6200-068K
When second-tier switches are used, each clique is considered a group, and the cabinets in the group connect to the same first-tier switches. The number of uplinks to each second-tier switch depends on the number of second-tier switches in use, which depends on the number of nodes and cabinets.
  • The two-tier BYNET switch topology enables large system sizes using 36-port switches.
  • A single set of first-tier switches can support one or more cliques depending on clique size.
  • Large systems are built with multiple first-tier switches interconnected with one to four sets of second-tier switches.
  • Second-tier 36-port switches can be installed in any cabinet that does not contain first-tier switches. If all cabinets contain first-tier switches, the second-tier switches can reside in a 9400 cabinet (9400 class).
  • Processing nodes and Fabric-Attached Storage of a clique must be connected to the same first-tier switch.
  • BYNET-attached PE nodes, TMS, and channel servers can connect to any first-tier switch.
  • The number of uplinks for a first-tier switch depends on the number of nodes connected to that switch. Teradata recommends one uplink for each multiple of four nodes. Two uplinks are the minimum required for redundancy.
Second-Tier 36-Port Switches and Uplinks Needed
Nodes/First-Tier Switch Uplinks First-Tier Groups Supported [Maximum Nodes]
One Pair of Second-Tier Switches Two Pairs of Second-Tier Switches Three Pairs of Second-Tier Switches Four Pairs of Second-Tier Switches
1 to 8 2 18 [144] 36 [288] - -
9 to 12 3 12 [144] 24 [288] 36 [432] -
13 to 16 4 9 [144] 18 [288] - 36 [576]