Invoke-IcingaCheckUsedPartitionSpace -CheckUsedSpace: negative value

[tectumopticum]

If WMI-data is wrong for a volume/device/drive the plugin probably reports negative value for used space:

Invoke-IcingaCheckUsedPartitionSpace -CheckUsedSpace -SkipUnknown -Exclude 'C'
[OK] Used Partition Space: 5 Ok
| 'k::ifw_partitionspace::used'=-50476310000B;;;0;2147346000000
0

Reason for this are wrong values of the WMI-object:
Get-WmiObject Win32_LogicalDisk
DeviceID : K:
DriveType : 3
ProviderName :
FreeSpace : 2197822521344
Size : 2147346206720
VolumeName : data

=> value for "FreeSpace" higher than value for "Size"!

In order to avoid false alarms it would be an idea to compare "Size" and "FreeSpace" and/or check if the output is negative and send an UNKNOWN-event.

OS: Windows 2016 Server Standard
IfW-framework: 1.12.3
IfW-plugins: 1.12.0