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Listing File Sizes with WMI

In my previous post on "Listing the file sizes of all Exchange Stores on all Exchange Servers in a Domain" I used the FSO (file system object) to get the details about the size of exchange store files and drive freespace. Somebody asked a question if there was another way to do this because in their network (as in many others) for security reasons the default admin shares (eg c$ d$) have been disabled.

One way you can go about this is to use WMI and the CIM_DataFile class, If you have Windows 2000 and your store files are above 2 GB you need to make sure you have applied the following hotfix http://support.microsoft.com/?id=820608 for this to work. But using the CIM_DataFile class is actually really easier it actually takes fewer lines of code then using FSO. For example to display the size of priv1.edb on a Exchange box once you know the location of the file its just two lines of code.

Set edbfile = GetObject("winMgmts:!\\servername\root\cimv2:CIM_DataFile.Name='e:\exchsrvr\mdbdata\priv1.edb'")
Wscript.echo "File Size: " & formatnumber(edbFile.fileSize/1073741824,2) & " GB"

To get the freespace on the drive its just as easy using the Win32_LogicalDisk WMI class eg

Set edbdrive = GetObject("winMgmts:!\\servername\root\cimv2:Win32_LogicalDisk.DeviceID='e:'")
Wscript.echo "Freespace: " & formatnumber(edbdrive.freespace/1073741824,2) & " GB"


Although i find FSO does seem a little faster its does offer a good alternative. I've created a WMI version of the Listing the file sizes of all Exchange Stores on all Exchange Servers in a Domain and posted it up here.

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All sample scripts and source code is provided by for illustrative purposes only. All examples are untested in different environments and therefore, I cannot guarantee or imply reliability, serviceability, or function of these programs.

All code contained herein is provided to you "AS IS" without any warranties of any kind. The implied warranties of non-infringement, merchantability and fitness for a particular purpose are expressly disclaimed.