Chapter 8. Data Collection and Event Configuration
The purpose of collecting data is to provide an alarm on custom thresholds and to perform trend analysis. For example, interface traffic can be monitored for critical devices and configured to send a message to a paging system when a threshold value is exceeded. MIB variable data can be collected to determine a reasonable threshold value. Because NNM has no means of determining the critical devices, MIB variables, or threshold values within a given enterprise, NNM does not perform data collection until it has been configured. NNM provides the ability to- Collect data without checking the threshold
- Collect data and generate an event when a custom threshold value has been exceeded
- Check the threshold value without storing the data
Collected data is stored in a proprietary database. NNM provides utilities to extract the data into ASCII format and store the data in the Data Warehouse, a relational database.Sealey Inc. requires the ability to collect and graph SNMP MIB data in order to provide trend analysis for their customers. They also need the ability to specify custom thresholds for MIB variables that will generate events (SNMP traps) and interface with their paging software. Ideally, they wish to store the custom traps in a separate category from the SNMP traps shipped with NNM.This chapter describes how to configure data collection from the NNM GUI, display and extract the collected data, and configure events based on custom thresholds. Events can be configured to interface with e-mail, audio alarms, paging systems, and trouble-ticketing systems. |
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