DISK UNKNOWN Error when using check_pdm.exe

[matt.uebel]

For one of my servers we are seeing a seemingly random occurrence of "DISK UNKNOWN - Drive information problem" result for our Disk Check NRDS service using check_pdm.exe from the Basic NRDS utilities.

There will be a bad result with this error, and then the next time it checks it will be fine.

I ran the check manually on the server multiple times, but wasn't able to reproduce the error.

Does anybody have any idea what could be causing this?

The check:

Code: Select all

$PLUGIN_DIR$\check_pdm.exe --disk --drive C: -w 90.5 -c 95.5

Plugins
http://exchange.nagios.org/directory/Pl ... ns/details

[abrist]

Could it be timeout related?

[matt.uebel]

I have asked the team that manages the server if there is anything that is happening around the same time that the check fails.

Does anybody know what the underlying mechanism is that does the check?

[slansing]

Not totally sure since it is a .exe, it might query the performance counters. I am having trouble tracking down any information on it, "nrpe_nt" is not really a supported way to check windows systems anymore.. but I do believe some users of NSClient use check_pdm.exe.