RSC/MP 7.3 Installation and Configuration Guide

Best Practices Guide
HP NonStop Remote Server Call (RSC/MP) Installation and Configuration Guide—522358-011
F-11
Scenario 3
NonStop host configuration
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Multiple TDPs, configured with identical PIPE, TERM, and ACS objects; each
TDP has its backup process enabled
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Multiple PIPEMAN processes, each with backup
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Multiple NIFs on for each PIPEMAN, configured in such a way that every
PIPEMAN is reachable by either physical network
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All host processes running in different CPUs where possible
Workstation configuration
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One PIPEMAN process
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One NIF
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Two network adapters, wired to different networks
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Piccolo configured through use of the [RESOLVER] section to reach a
particular PIPEMAN instance running on the NonStop host, by attempting
connections through both hostside NIFs as needed
Advantages
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This configuration provides better throughput than does the configuration in
scenario 2 because the load is divided among multiple PIPEMAN processes.
•
This configuration can tolerate the loss of a host CPU, a network adapter, or
even an entire network.
•
This configuration provides for quicker recovery in the event of certain
component failures. For example, when a network adapter on the host fails, the
[RESOLVER] entry in the workstation provides a backup address that will, by
design, reach the same instance of PIPEMAN to which the workstation was
connected. The availability of the backup address allows for an earlier
continuation of service to the affected workstation.
Disadvantages
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This configuration is more complex than the configuration in scenario 2.
•
This configuration requires more hardware resources.