Expand Configuration and Management Manual (G06.24+)

Tuning
Expand Configuration and Management Manual—523347-008
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What the Utilities Show
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Subsystem Control Facility (SCF). Provides a good view of long-term network
behavior. The SCF interface to the Expand subsystem is described in Section 15,
Subsystem Control Facility (SCF) Commands.
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Measure. Can be used to make a detailed study of a particular node’s Expand line-
handler processes and paths and short-term network traffic intensity. Measure is
described in the Measure User’s Guide.
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Enform. Can be used for data reduction that can be analyzed by proprietary tools
on the NonStop S-series server or can be used with analytical or simulation tools
elsewhere. The Enform optimizer can be used to produce charts such as those
shown later in this section. ENFORM is described in the Enform Reference Manual
and Enform User’s Guide.
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Availability Statistics and Performance (ASAP)
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The Availability Statistics and Performance (ASAP) monitoring tool provides
graphical and tabular displays of system and network object performance, object
state, and entity threshold information. The Availability Statistics and Performance
Extension (ASAPX) product integrates and extends ASAP monitoring capabilities
to single and multi-node application environments. For more information about
ASAP, refer to the following manuals: ASAP Client Manual, ASAP Server Manual,
ASAP Extension Manual, and ASAP Migration Guide for NSX and OMF Users.
What the Utilities Show
Virtually all the information needed to model and tune an Expand network can be
gathered by SCF and Measure.
SCF is specifically designed to monitor network components. SCF is adequate to map
the topology of any Expand network, but it is not designed to define the traffic
completely.
Measure is a general-purpose measuring tool that reports details on the performance
of several Expand components.
Using Measure
The Expand components reported on by Measure are called entities. Once you have
mapped your network and selected the nodes you want to measure, you can
characterize the network traffic by measuring the following entities:
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SYSTEM Entity
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NETLINE Entity
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LINE Entity
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PROCESS Entity
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CPU Entity
Note. The values shown in the following diagrams are in units per second (the Measure SET
REPORT RATE ON command was used).