Well, again let me point out that I know next to nothing about WMI, so I could be very well just blowing air out my rear-end here. However, looking at that "link" you gave I see the following: 
For IDE, this polling consists of sending the READ_SMART_STATUS comman
+d. If this status indicates an error, a WMI event will be launched th
+at includes the SMART attribute data.

[download]

It doesn't actually specify what is returned in the absence of an error. Your reply infers that print $Drive->{'Status'}; produces 'OK' ...could it be that this is the entirety of the status?

Cheers,
Darren :)

In reply to Re^3: SMART info from drives in win32 using WMI by McDarren
in thread SMART info from drives in win32 using WMI by Nemurenai

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