Wednesday, April 16, 2014

Quota if Mailbox Size script for Exchange 2010,2013

If your playing around with different Mailbox quota values you might want to see what the usage of those quotas would be before you apply them to a Mailbox. This is a very simple Mailbox Size script for Remote Powershell to show you this with a funky console graph output (and a CSV report) eg

So what the script does is the normal Get-Mailbox | Get-MailboxStatistics to get the TotalSize of the Mailbox in MB and compares that against a QuotaIf Value you feed into script in the above example that was 2000 MB. It then works out the current percentage used and the produces an Alt-ASCII graph and the above table.

When you run this script you need to feed in the QuotaIf value eg

.\quotaIf.ps1 2000

I've put a download of this script here and code itself looks like

  1. $QuotaIfVal = $args[0]  
  2. $Script:rptCollection = @()  
  3. get-mailbox -ResultSize unlimited| Get-MailboxStatistics | foreach-object{  
  4.     $rptObj = "" | Select MailboxName,TotalSize,QuotaIfPercent,PercentGraph  
  5.     $rptObj.MailboxName = $_.DisplayName  
  6.     [Int64]$rptObj.TotalSize = ($_.TotalItemSize.ToString() |%{($_.Substring($_.indexof("(")+1,$_.indexof("b")-$_.indexof("(")-2)) -replace(",","")})/1MB  
  8.     $rptObj.QuotaIfPercent = 0    
  9.     if($rptObj.TotalSize -gt 0){  
  10.         $rptObj.QuotaIfPercent = [Math]::round((($rptObj.TotalSize/$QuotaIfVal) * 100))   
  11.     }  
  12.     $PercentGraph = ""  
  13.     for($intval=0;$intval -lt 100;$intval+=4){  
  14.         if($rptObj.QuotaIfPercent -gt $intval){  
  15.             $PercentGraph += "▓"  
  16.         }  
  17.         else{         
  18.             $PercentGraph += "░"  
  19.         }  
  20.     }  
  21.     $rptObj.PercentGraph = $PercentGraph   
  22.     $rptObj | fl  
  23.     $Script:rptCollection +=$rptObj   
  24. }  
  25. $Script:rptCollection  
  26. $Script:rptCollection | Export-Csv -NoTypeInformation -Path c:\temp\QuotaIfReport.csv -Encoding UTF8   


Anonymous said...


Tried to run the script received following error

ForEach-Object : Attempted to divide by zero.
At C:\Users\Adam\Desktop\quotaIf.ps1:3 char:74
+ get-mailbox -ResultSize unlimited| Get-MailboxStatistics | foreach-object <<<< {
+ CategoryInfo : NotSpecified: (:) [ForEach-Object], RuntimeException
+ FullyQualifiedErrorId : RuntimeException,Microsoft.PowerShell.Commands.ForEachObjectCommand

Unknown said...

Is any script which look for 95 % exceed mailbox to get the additional n % of mailbox quota.

Anonymous said...

I get the divide by zero error too when I try to add qualifiers to the get-mailbox command, because I set quotas by DB, so I want to exclude some DB's if I only want a certain subset of users on a specific quota policy. Would be nice if we could make this work so that it would just pull the quota setting from the mailbox, then show the percentage used for everyone. That way I wouldn't have to break it up.

Anonymous said...

anyone has luck i get Exception calling "Substring" with "2" argument(s): "Length cannot be less than zero.