Can you help me to add custom WMI monitors?
Q: Can you help me to add a custom WMI monitor? For example, what query can be used to check disk C: Read & Write Bytes per Sec?
A: The following custom WMI Query can be used:
SELECT DiskBytesPerSec FROM Win32_PerfFormattedData_PerfDisk_LogicalDisk WHERE Name = "C:"
In general, if you need to read a Windows performance counter value, you should
- Find the corresponding Win32_PerfFormattedData-derived WMI class:
http://msdn.microsoft.com/en-us/library/aa392397
http://msdn.microsoft.com/en-us/library/aa394253 - Choose the needed class property (properties correspond to counters). For example, properties of Win32_PerfFormattedData_PerfDisk_LogicalDisk class can be found at:
http://msdn.microsoft.com/en-us/library/aa394261 - Construct the WMI Query as
SELECT <property name> FROM WHERE Name = <instance name>Note: WHERE clause is required if there are several instances (e.g. if several logical disks are configured)
