Windows Performance Counters

Introduction:

This section is common to all the editions of IT360, as per the below constraints;

Professional Edition
Enterprise Edition [Applicable to Probes only, and not applicable / relevant to the Central Server, since the configuration of the monitors happens only at the Probe level. However, you may see these discovered monitors from the Central Server]
MSP Edition [Applicable to Probes only, and not applicable / relevant to the Central Server, since the configuration of the monitors happens only at the Probe level. However, you may see these discovered monitors from the Central Server]

Monitor Information:

IT360 uses WMI (Windows Management Instrumentation), for monitoring Windows Performance Counters. WMI gives preinstalled performance counter classes, where each class describes an object in performance libraries.

For e.g., the object that appears in the Perfmon System Monitor, named 'NetworkInterface', is represented in WMI by;

'Win32_PerfRawData_Tcpip_NetworkInterface class' - for 'raw' data.
'Win32_PerfFormattedData_Tcpip_NetworkInterface class' - for 'pre-calculated', or 'cooked' data.

Currently, IT360 supports monitoring the counters of classes, derived from 'Win32_PerfFormattedData'.

Some of the WMI Performance classes, for Performance Objects, that are present in Perfmon are;

Processor - Win32_PerfFormattedData_PerfOS_Processor
Browser - Win32_PerfFormattedData_PerfNet_Browser
PagingFile - Win32_PerfFormattedData_PerfOS_PagingFile
Memory - Win32_PerfFormattedData_PerfOS_Memory
Server - Win32_PerfFormattedData_PerfNet_Server

Some classes can only have one instance of it, and they are called 'ingleton Classes'.

After creating Windows Performance Counters, You will see the WMI Monitor details page, showing availability and other details.

Availability tab, gives the Availability history for the past 24 hours or 30 days.
Performance tab gives the Health Status and events for the past 24 hours or 30 days.
List view enables you to perform Bulk admin configurations. Click on the individual monitors listed, to view the following information. The windows performance counter values can be added and monitored, as attribues. The overall ability to configure thresholds on attributes and taking corrective actions are supported out-of-the-box.

Adding Attributes:

Click on Add Attributes link.
This will take you to the list of WMI Performance Classes. You can choose the classes, whose attributes you want to monitor.
Click on Show Attributes. The list of WMI classes, selected along with their attributes and instances are displayed. Select the attributes and instances. The attributes would then be added, for monitoring.
You can configure thresholds and alerts for the attributes. At a class level, you can configure alerts for Health, which inturn depends on the attributes, it comprises of.

Note: Windows Performance Counters is currently supported for Windows XP, Windows 2003 & Windows 2000.

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