UDA Inter-System Connections
- 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 IntelliFlex systems containing a single pair of first-tier switches, connect the UDA uplinks to these switches in cabinet 1.
- For IntelliFlex systems containing multiple first-tier and a single pair of second-tier switches, connect the UDA uplinks to the second-tier switches in cabinet 2.
- 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.
IntelliFlex Intra-System Connections
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 to five cliques depending on clique size.
- Large systems are built with multiple first-tier switches interconnected with one to four sets of second-tier switches.
- Number of first-tier switch to second-tier switch uplinks is four for standard configurations.
- Second-tier 36-port switches can be installed in any cabinet that doesn't contain first-tier switches, default is Cabinet 2.
- Extremely large systems use the large switches in the BYNET cabinet as the second-tier switch.
- 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 server nodes can connect to any first-tier switch.
|Number of Groups||Maximum Number of Nodes||Second-Tier Switches per Fabric||Uplinks (First-tier to Second-tier) Per Second-Tier Switch or Group|
|1 to 9||117||One 36-port switch||4|
|10 to 18||234||Two 36-port switches||2|
|19 to 36||468||Four 36-port switches||1|
|37 to 81||1053||One 324-port switch||4|