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Introduction to Networking for NonStop S-Series Servers

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Introduction to Networking for HP NonStop S-Series Servers
—520670-005
5-7
ServerNet Clusters
Two important subsystems are used to manage a ServerNet Cluster. The ServerNet
Cluster (SCL) subsystem is the system configuration environment that enables
ServerNet communication between processors in different nodes of a ServerNet
Cluster. The external SAN manager (SMN) subsystem is the software environment that
enables control of the external ServerNet fabrics.
Figure 5-3. ServerNet Cluster Using Split-Star Topology
ServerNet Nodes
ServerNet Nodes
External ServerNet
External ServerNet
4-lane link
connects the two
switches on each fabric
\A \B \C \D \E \F
\G
\H
\I
\J
\K \L \M \N
\O
\P
Y fabric consists of two
VST203.VSD
X1
Y1
X2
Y2
cluster swtiches and
connections to all
nodes
X fabric consists of two
cluster switches and
connections to all nodes