Specifications

PlantScape Server and Client Configuration Guide 301
14 Configuring and Monitoring a
Redundant Server System
PlantScape supports both dual networks and redundant servers, in any
combination. For example, you can configure:
• Station connections to redundant servers over dual networks
• Redundant connections between redundant servers (recommended)
The following figure shows a sample network architecture drawing for a fully
redundant system. A diagram like this is useful for checking the validity of your
configuration and for finding problems during configuration and testing. If any
node or network seems to be functioning incorrectly with respect to network
communications, checking its configuration against the network architecture
drawing is a quicker way to find any misconfiguration than just running
diagnostics.
Your diagram should show:
• All network-connected computers running PlantScape Server or Station
(generically called “nodes”)
• Single or dual network connected
• Network/subnetwork ID for each of the networks
• Name and IP address for each network interface card (NIC) connected
anywhere on either network
Figure 14.1 Sample Network Architecture Diagram
stationc
Name =
stationc
stationb
Name =
stationb
stationa
Name =
stationa0
Name =
stationa1
terminal
server
serial
subsystem
IP = X.host
IP = Y.host
terminal
server
Name =
hsserva0
Name =
hsserva1
hsserva hsservb
Name =
hsservb0
Name =
hsservb1
Network/Subnetwork X
link 0
Network/Subnetwork Y
link 1
plscpcg.book Page 301 Monday, May 28, 2001 10:11 AM