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128 GB used on a 80 GB partition

Answered 128 GB used on a 80 GB partition

  • Thursday, February 07, 2013 4:31 PM
     
     
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    A little history of this server before it came to be our responsibility:

    2008 foundation server, in place upgrade to standard 2008 R2, Sp1 installed, exchange 2010 installed

    And we are the lucky ones that gets to deal with the aftermath.

    logged in as Administrator on this, the only DC

    1 RAID volume 465.76 GB

    Partitions Originally:

    OEM 39 MB

    Recovery 3 GB

    OS C: 40 GB

    Datapart1 D: 420 GB

    C partition was running out of space after installing SP1; thanks winsxs, so we shrank D and extended C

    Partitions Currently:

    OEM 39 MB

    Recovery 3 GB

    OS C: 80.86 GB

    Datapart1 D: 381.33 GB

    Everything seemed fine, winsxs grew couple GB but not more than anticipated, a month or so goes by and the server starts reporting low space on the C drive.

    Went trough normal cleanups checking if/what could be moved/deleted but in the end we now have ~ 60GB of used space on the C drive that we can't seem to locate. We have used spacemonger, windirstat, treeview, powershell, diskpart, fsutil, chkdsk all showing same space usage and free space but still can't account for that 60GB. UAC is disabled; administrator and system have necessary permissions/ownership on the drive. Show system and hidden are on.

    I checked with vssadmin and verified there are no snapshots on the volume, as well as nothing in recycle bin, etc. All writers reporting healthy no errors.

    Windows server backups is not configured/used on this system.

    Verified system restore has not been manually enabled, no snapshots present in system volume information.

    This is not a terminal server so no user profiles to cause permission issues.

    I saw online where someone had similar issue and they ran dir /a/s and it seemed to clear up their issue so I ran it and created log file on another drive with the results.

    The results confused me even more.

    I can make the entire log available but here is the part that really got me:

    Total Files Listed:            376623 File(s) 138,346,254,061 bytes          

                                          138496 Dir(s)         22,589,440 bytes free

    How is 128.8 GB used on an 80 GB partition? The free space shown matches free space reported by all other check methods.

    I am thinking it may have something to do with symbolic links, but I didn't think they affected reporting in this way.

    Any ideas or thoughts would be greatly appreciated.

     

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  • Friday, February 08, 2013 2:17 AM
     
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    Hello,

    Can you down Disk Usage tool from the sysinternals site? 
    http://technet.microsoft.com/en-us/sysinternals/bb545046.aspx

    I dropped it into a c:\tools folder I created.

    then run it:

    C:\Tools>du /v c:\ >Files.txt 

    I dropped the files in Excel and used text-columns to separate into unique rows.

    Then I sorted by size to list all the folders,

    Can you make the files available for download?

    The DIR command is counting all the files which means for hard links the files are counted each time they are encountered even though the space is limited to one occurrence.

    Thanks, Darrell Gorter [MSFT] This posting is provided "AS IS" with no warranties, and confers no rights. VAMT - Volume Activation Management Tool - Download link http://www.microsoft.com/downloads/details.aspx?FamilyID=ec7156d2-2864-49ee-bfcb-777b898ad582&displaylang=en