RAD Data comm ASMI-450 Manual de usuario descargar pdf (Pagina 130)

Chapter 4 RADview-HPOV System Functions RADview-HPOV/ATM User’s Manual

4-72 Net Statistics

First Hour after Statistical Information Collecting Application was

Started

The following three situations may exist:

• No files exists in the Statistical Information Collecting Application for the

current day

• Files already exist for the current day

• The hour is 24:00.

In the first case, the Statistical Information Collecting Application determines the

number of intervals that it needs to get from each agent by checking the number

of intervals that have passed since midnight.

In the second case, the Statistical Information Collecting Application considers the

number of intervals that appear in the files already, and only collects what is still

needed from the agent.

In the third case, no writing to a file is done. The Statistical Information Collecting

Application waits another hour, at which time it starts to save statistical information

for a new day.

When the Next Collection is Enabled/Disabled

The Statistical Information Collecting Application monitors the completion of data

collection for each agent. It will not enable the next writing to the files until the last

one has been completed for all agents. If the last data collection has not finished

by the time the next one is due to start, the next one is postponed to the next top

of the hour, which means that more intervals will have to be collected.

Node Not Responding

If at any time during the data collection the Statistical Information Collecting

Application loses connection with a node, the process for the specific thread of

data collection is stopped and is resumed again at the next top of the hour. Note

that work is stopped only for the specific group of variables for a specific interface.

Other interfaces on the same node may not have communication problems, and

so the process for them will continue as normal.

Non-Existing Intervals

For each requested interval that does not exist, the Statistical Information

Collecting Application writes -1s for each variable for the specific interface.

Change of Interval During Collection

If at the top of the hour, the time since the last interval for a specific node is

greater than 10 minutes, the operation is postponed until the start of the next

interval. This is to minimize the risk of a change of interval in the agent while the

Statistical Information Collecting Application is in the process of getting the last N

intervals. If a change of interval still occurs, there will be a loss of one interval.

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RAD Data comm ASMI-450 Manual de usuario Pagina 130