I don't know much about WMI resources, but I do know that when dealing with data structures - Data::Dumper::Simple is my very best friend :)

Adding the following to your code... 

use Data::Dumper::Simple;
# your code here...
print Dumper($res);

[download]

...yields the following result on my Win32 machine... 

$res = bless( {
                'Count' => undef,
                'Security_' => bless( {
                                        'ImpersonationLevel' => 3,
                                        'AuthenticationLevel' => 6,
                                        'Privileges' => bless( {
                                                                 'Coun
+t' => 1
                                                               }, 'Win
+32::OLE' )

                                      }, 'Win32::OLE' )
              }, 'Win32::OLE' );

[download]

So I guess the resulting data structure is a little more complex than just a simple hash. No smartdrive info there of course (because I'm not running any), but I suspect that if you try the same thing on your machine you might find the clue that you need.

Hope this helps,
Darren :)

In reply to Re: 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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