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i am expecting a very curious problem. In a script collecting disk infos on a list of W2008 servers, i realize that, for some servers, the Wmi info for the disk size is wrong.

My Powershell command: Get-WmiObject win32_LogicalDisk. For one partition, it returns 70Go of disk size, but 100 Go of FreeSpace... When i right-click the partition in the explorer, the disk size is 70Go, and the Freespace is 69,5Go. But... in the Disk Management, the partition size is 102Go... Maybe there is a problem with the performance counters but i don't know what to do...

What i have tried:

  • get disk info via wmi, fsutil and "explorer" : wrong infos.
  • get disk info via Disk Management, and the diskpart utility : good infos.

  • chkdsk /x q: : no changes.

  • with dispart.exe, on the volume Q: : extend filesystem. No changes.
  • Reset the performance counters.

Any idea?

Some screen captures:

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Please include links to screenshots of the Explorer and disk management windows. –  longneck Aug 7 '13 at 12:34
    
Thanks, i add screen captures. –  plunkets Aug 23 '13 at 14:34
    
Make sure you have backups of any data on the drive. Then run chkdsk /x Q: and see if that resolves the issue. –  Chris S Aug 23 '13 at 14:51
    
I've tried chkdsk but nothing changes. I also tried the diskpart.exe utility with the extend filesystem command. Nothing. –  plunkets Aug 23 '13 at 15:59
    
Have a look at this blog article and see if it helps you out: blogs.msdn.com/b/ntdebugging/archive/2008/07/03/… –  TheCleaner Aug 26 '13 at 13:09
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