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Disk I/O performance - SNMP / Custom WMI



I am want to monitor disk I/O performance on our Win2008 servers. I have tried to import several MIB's downloaded from the internet but haven't succeeded in converting them using the MIB importer. If anyone already did this, can they post their oidlib here?

I have also tried to do a custom WMI query. This works when executing the query through the WMI tester, but when I run it through Network Monitor I get "Field '*' not found"

Here is the query: SELECT * FROM Win32_PerfFormattedData_PerfDisk_LogicalDisk where name ='_Total'

Any ideas or assistance would be greatly appreciated. Thank you.

prtg snmp windows-2008 wmi wmi-custom-sensor wql

Created on Mar 18, 2010 10:58:42 AM

Last change on Mar 1, 2011 10:32:39 AM by  Daniel Zobel [Product Manager]

2 Replies

Accepted Answer




the problem is the used '*' in the query. This way you receive a result set with multiple fields, which can't be handled by the PRTG Network Monitor in the moment (it would simply not know which field you'd like to check). So please use a precise query which delivers one field, like for example:

SELECT AvgDiskQueueLength FROM Win32_PerfFormattedData_PerfDisk_LogicalDisk where name ='_Total' which would give you the Average Disk Queue Length.

Best Regards.

See Also

How to create a WMI Custom Sensor

Created on Mar 18, 2010 11:25:46 AM by  Torsten Lindner [Paessler Support]

Last change on Mar 23, 2010 11:58:47 AM by  Daniel Zobel [Product Manager]



Great. That worked. Thank you.

Created on Mar 19, 2010 7:41:15 AM

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