You can optimize system performance by analyzing network performance such as resource utilization and traffic monitoring .This especially applies to nodes such as routers and switches.
To monitor system performance on applications, Windows, NetWare, Linux, Mac OS X, BSD operating systems or via SNMP, you can use any of the predefined monitoring packs provided in the
Tools->Alerting & Reporting->Settings->NetCrunch Alerting & Reporting Settings.
You can change and/or add new events with alerting scripts according to your needs.
Basic monitoring
The basic network monitoring is related to the node actions, state (ALIVE or DOWN), NetCrunch heartbeat and Syslog message events. Such events are gathered on the Basic tab of the Add Monitoring Event window.
Monitoring Network and Services
The Services & Interfaces tab of the Add Monitoring Event window contains events related to the monitoring network interfaces and services. You can define and create events related to the network interface state (service UP or DOWN), network service availability threshold (using a service counter) and advanced network service events with authentication conditions. In each event class, you can select a network service. It is important to make sure that the selected network service is configured on the nodes for which the event is created.
Operating System Performance
NetCrunch provides the predefined monitoring packs dedicated to monitor the Windows, NetWare and Linux operating system. You can check the list of predefined alerts and reports in the Summary view of the selected monitoring policy. You can also create custom monitoring packs with individually selected events and actions. All specific events for the Windows, NetWare and Linux operating system are displayed on the appropriate tab in the Add Monitoring Event window. You can select the predefined or configurable event or create new events with using the appropriate performance thresholds. The predefined events such as the node's Available Memory < 10MB, Disk Usage Time > 70 %, Server Utilization > 90 % or Processor Utilization > 95 % are fully preconfigured and can simply be added to the selected monitoring pack.
You can select an event marked by the asterisk on the left side and specify the appropriate parameters for the selected event. You can also create new events by selecting the Select to create new... link in the appropriate events class.
When you specify criteria in the Condition section of the Edit Event Definition window the performance counter option opens the Add Counter window where you can add selected counters and instances.
SNMP
If the node for which you want to monitor system performance is SNMP-enabled, you can additionally use performance counters read directly from SNMP. You can create new events based on the SNMP trap and/or performance thresholds from the SNMP tab in the Edit Monitoring Event window. In the Select Performance Counter window, the user will have options for choosing the predefined performance counter, custom counter OID or browse the MIB database.
Web Page
NetCrunch allows you to monitor Web pages. All events related to monitoring a Web page can be created on the Web Page tab of the** Add Monitoring Event** window. First, you can create an event (using a threshold value) for Web page download time. Second, you can define an event related to the HTTP and HTTPS monitoring services that checks Web page in the following ways: existence of a Web page on server, page content change and authentication. All specific parameters related to the Web page monitoring events are configured in the Edit Event Definition window.
File Events
You can create events related to the FTP monitoring services from the File Events tab in the Add Monitoring Event window: - define data monitoring events, such as file or directory content change and presence of a file on the FTP server - create a FTP download time event using a threshold value
