Filter
Top Products
Using the Integration Capabilities of the VPO Motif-based GUI
Event Integration Through Messages
Chapter 3 101
A second mechanism, specifically for polling MIB variables and referred
to as MIB Data Collection, is also provided by VPO. In contrast to
threshold monitors, this mechanism can be configured to store the
collected data which can be used to analyze trends in monitored
variables by plotting the values against time. This type of monitor also
supports threshold values but does not provide their sophisticated
filtering capabilities. Events can also be generated based on exceeded
thresholds and on returning to “normal” values, but it is not
straightforward to set up an action to resolving a problem.
Monitoring MIB Variables
When deciding whether to use a threshold monitor or MIB data
collection, consider the following points:
❏ To collect and store data for the later plotting of graphs, it is
recommended to use MIB data collection.
❏ To generate a message as soon as a monitored value indicates a
problem, it is recommended to use threshold monitoring.
❏ If the VPO management server is at a location remote from the
objects for which MIB variables are monitored, and if network load
and management server workload are issues, threshold monitoring
might be more suitable for the following reasons:
• With MIB data collection, the VPO management server polls the
managed objects at regular intervals with a request for data and
receives a response.
• With threshold monitoring, the VPO intelligent agent polls the
monitored object. If the object is a node running the VPO agent,
additional network traffic, due to MIB variable polling, is not
generated. The only additional network traffic is caused when a
problem is detected, and a message must be sent to the
management server.