NonStop S-Series Server Description Manual (G06.24+)

Introduction
HP NonStop S-Series Server Description Manual—520331-003
1-45
Tr i-Star Top ology
Figure 1-23. 24-Node ServerNet Cluster Using Tri-Star Topology
Cluster Nodes
VST121.VSD
Cluster Nodes
External ServerNet
X fabric consists of
up to three cluster
switches, two-lane
links, and switch-to-
node links
External ServerNet
Y fabric consists of
up to three cluster
switches, two-lane
links, and switch-to-
node links
Y1
Y3
Y2
X1
X2
X3
Switch-to-Node
Links
(80 meters
maximum)
Switch-to-Node
Links
(80 meters
maximum)
Switch-to-Node
Links
(80 meters
maximum)
Two-Lane
Links
(1 km maximum)