Skip to main content

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.

Popular posts from this blog

The MailboxConcurrency limit and using Batching in the Microsoft Graph API

If your getting an error such as Application is over its MailboxConcurrency limit while using the Microsoft Graph API this post may help you understand why. Background   The Mailbox  concurrency limit when your using the Graph API is 4 as per https://docs.microsoft.com/en-us/graph/throttling#outlook-service-limits . This is evaluated for each app ID and mailbox combination so this means you can have different apps running under the same credentials and the poor behavior of one won't cause the other to be throttled. If you compared that to EWS you could have up to 27 concurrent connections but they are shared across all apps on a first come first served basis. Batching Batching in the Graph API is a way of combining multiple requests into a single HTTP request. Batching in the Exchange Mail API's EWS and MAPI has been around for a long time and its common, for email Apps to process large numbers of smaller items for a variety of reasons.  Batching in the Gr...
Read more

Sending a MimeMessage via the Microsoft Graph using the Graph SDK, MimeKit and MSAL

One of the new features added to the Microsoft Graph recently was the ability to create and send Mime Messages (you have been able to get Message as Mime for a while). This is useful in a number of different scenarios especially when trying to create a Message with inline Images which has historically been hard to do with both the Graph and EWS (if you don't use MIME). It also opens up using SMIME for encryption and a more easy migration path for sending using SMTP in some apps. MimeKit is a great open source library for parsing and creating MIME messages so it offers a really easy solution for tackling this issue. The current documentation on Send message via MIME lacks any real sample so I've put together a quick console app that use MSAL, MIME kit and the Graph SDK to send a Message via MIME. As the current Graph SDK also doesn't support sending via MIME either there is a workaround for this in the future my guess is this will be supported.
Read more

Export calendar Items to a CSV file using Microsoft Graph and Powershell

For the last couple of years the most constantly popular post by number of views on this blog has been  Export calendar Items to a CSV file using EWS and Powershell closely followed by the contact exports scripts. It goes to show this is just a perennial issue that exists around Mail servers, I think the first VBS script I wrote to do this type of thing was late 90's against Exchange 5.5 using cdo 1.2. Now it's 2020 and if your running Office365 you should really be using the Microsoft Graph API to do this. So what I've done is create a PowerShell Module (and I made it a one file script for those that are more comfortable with that format) that's a port of the EWS script above that is so popular. This script uses the ADAL library for Modern Authentication (which if you grab the library from the PowerShell gallery will come down with the module). Most EWS properties map one to one with the Graph and the Graph actually provides better information on recurrences then...
Read more
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.