OSM Service Connection User's Guide (G06.32+)

13 Cluster Resources
A ServerNet cluster is built using one of several topologies.The hardware resources in a cluster differ depending on
the topology of the ServerNet cluster.
ServerNet clusters using one of the star topologies are built with the HP NonStop Cluster Switch (model 6770) and
can support up to 24 nodes.
ServerNet clusters using the layered topology are built around the HP NonStop ServerNet Switch (model 6780) and
can support up to 64 nodes.
Resources in the Layered TopologyResources in the Star Topologies
ServerNet ClusterServerNet Cluster
External ServerNet FabricExternal ServerNet Fabric
Switch Group
6780 Switch Module
• Switch Logic Board
• Switch PIC
• Switch Port
• Switch Node Port
• Switch Power Supply
• Switch Fan
6770 Switch Module
• ServerNet II Switch
• Switch-to-Node PIC
• Switch-to-Switch PIC
• AC Transfer Switch
• UPS (6770 Switch Module)
Remote 6770 Switch
ServerNet Local NodeServerNet Local Node
ServerNet Remote NodeServerNet Remote Node
239