I’ve spent a lot of time working on Exchange migration projects lately, which means that I’ve moved a lot of mailboxes. When I’m planning batches of mailboxes to migrate one of the pieces of information I look at is the current size and mailbox count for the mailbox databases on the server I’m migrating to.
For Exchange Server 2007 environments I use this script to quickly report that information to me.
[PS] C:\Scripts>.\get-mbinfo.ps1 -server EX2007MB Database Size (Mb) Mailboxes -------- --------- --------- EX2007MB_DB1 98774.89 86 EX2007MB_DB2 92505.02 53 EX2007MB_DB3 102523 63 EX2007MB_DB4 107795 61 EX2007MB_DB5 98085.02 72 EX2007MB_DB6 101591.3 69 EX2007MB_DB7 112167.1 90 EX2007MB_DB8 102109 57 EX2007MB_DB9 104767 35
This script is only written to work for Exchange Server 2007 Mailbox servers at the moment, and needs only one parameter provided (the -server).
Here is the full script code.
#
#.SYNOPSIS
#Returns the list of mailbox databases on a server
#along with the mailbox count and .edb file size
#for each database.
#
#.EXAMPLE
#.\get-mbinfo.ps1 -server EX2007MB
#
#You must specify a server name
param($server)
#If server name not provided try using the local host
if ($server -eq $nul) {$server = $env:COMPUTERNAME}
#Exit if server is not an Exchange mailbox server
$rolecheck = Get-ExchangeServer $server -erroraction silentlycontinue
if ($rolecheck.IsMailboxServer -ne $true)
{
Write-Host "Server" $server "is not a mailbox server" -foregroundcolor red -backgroundcolor white
Write-Host "Use -Server to specify a valid mailbox" -foregroundcolor red -backgroundcolor white
Write-Host "server to run script against." -foregroundcolor red -backgroundcolor white
Exit
}
#Check if its a cluster so that node name can be used for EDB file size check
$cluster = get-ClusteredMailboxServerStatus -identity $server -erroraction silentlycontinue
if ($cluster -eq $nul)
{
$servername = $server
}
else
{
$CluObj = New-Object -com "MSCluster.Cluster"
$CluObj.Open($Server)
$ActiveNode = $CluObj.ResourceGroups.Item($Server).OwnerNode.Name
$servername = $ActiveNode
}
#Get the list of mailbox databases from the server (excluding recovery databases)
$dbs = Get-MailboxDatabase -server $server | Where {$_.Recovery -ne $true}
#Quick reorder
$dbs = $dbs | sort-object name
foreach ($db in $dbs)
{
#Get the mailbox count for the database
$mailboxes = Get-Mailbox -database $db -IgnoreDefaultScope -Resultsize Unlimited -erroraction silentlycontinue
$mbcount = $mailboxes.count
#Get the EDB file size for the database
$edbfilepath = $db.edbfilepath
$path = "`\`\" + $servername + "`\" + $db.EdbFilePath.DriveName.Remove(1).ToString() + "$\"+ $db.EdbFilePath.PathName.Remove(0,2)
$dbsize = Get-ChildItem $path
[float]$size = $dbsize.Length /1024/1024
$dbname = $db.name
$returnedObj = new-object PSObject
$returnedObj | add-member NoteProperty -name "Database" -value $dbname
$returnedObj | add-member NoteProperty -name "Size (Mb)" -value $size
$returnedObj | Add-Member NoteProperty -Name "Mailboxes" -Value $mbcount
$returnedObj
}
Note: I referenced some code samples on the web when I was putting this together but forgot to track where they were from. If you spot a snippet that originated from you please let me know so I can add credit.
FYI – When copying your code, your path name appears as though it is incorrect now for some reason. What used to be slashes are now single quotes or something.
$path = ““” + $servername + “`” + $db
A bunch of my code samples got messed up in a DB migration between WordPress sites. I’ll try and fix it. In the meantime if you copy/paste into the PowerShell ISE or VS Code it should highlight any syntax problems.
Script Works into an environment Exchange 2013?
Greetings from Mexico
🙂
This script is working better for me and appears to be more accurate:
Get-MailboxDatabase | Select Server, StorageGroupName, Name, @{Name=”Size (GB)”;Expression={$objitem = (Get-MailboxDatabase $_.Identity); $path = ““” + $objitem.server + “`” + $objItem.EdbFilePath.DriveName.Remove(1).ToString() + “$”+ $objItem.EdbFilePath.PathName.Remove(0,2); $size = ((Get-ChildItem $path).length)/1048576KB; [math]::round($size, 2)}}, @{Name=”Size (MB)”;Expression={$objitem = (Get-MailboxDatabase $_.Identity); $path = ““” + $objitem.server + “`” + $objItem.EdbFilePath.DriveName.Remove(1).ToString() + “$”+ $objItem.EdbFilePath.PathName.Remove(0,2); $size = ((Get-ChildItem $path).length)/1024KB; [math]::round($size, 2)}}, @{Name=”No. Of Mbx”;expression={(Get-Mailbox -Database $_.Identity | Measure-Object).Count}} | Format-table -AutoSize
The script reported that there are 441 on my database “m7sg10priv1”.
I went into the Exchange Management Console for Recipient Mailboxes and did a filter where “Database” equals “m7sg10priv1”, and only 1 mailbox showed up.
So I don’t know if the mailbox # count is correct.
In my case I like returned dbsize to be in GB so I made this change at the end and works fine.
$returnedObj | add-member NoteProperty -name “Size (GB)” -Value (“{0:n2}” -f ($dbsize.Length/1024MB))
This script doesn’t work with a 2003’s OS server. I get :
Get-ChildItem : Cannot find path ‘\MyCCRNameMySGMyDB.edb’ because it does not exist.
It’s strange because this works well on a 2008 server’s OS.
Any clue?
Best regards
I overlooked the Unix-like “.” leading the command. I was treating it more like a DOS batch file.
Thank you for this script, it did work.
I copied and pasted into Notepad and gave it the name you mention. In the Windows PowerShell on my Win2008 Standard server, I see a “Suggestion” that “the command was not found, but does exist in the current location”. This is followed by the error “The term ‘get-mbinfo.ps1’ is not recognized as the name of a cmdlet…..”
I used your parameter to input the name of my Exchange server.
Thank you.
Thanks…
The below script is also give the same… 🙂
Get-MailboxDatabase | foreach-object {add-member -inputobject $_ -membertype noteproperty -name mailboxdbsizeinGB -value ([math]::Round(([int64](get-wmiobject cim_datafile -computername $_.server -filter (‘name=”’ + $_.edbfilepath.pathname.replace(“”,”\”) + ””)).filesize / 1GB),2)) -passthru} | Sort-Object mailboxdbsizeinGB -Descending | format-table identity,mailboxdbsizeinGB
But not the mailbox count 🙂
Thanks a whole load. This is just what i needed. Your articles rock Paul!
Thanks for this script. I used it to get the mailbox count on a remote server. It worked for 2 times. Now, when I identify the server with as before (-server servername), I get an error that the object cannot be located. The server is obviously still in AD. I will try to run it locally but was wondering if you have ever seen this issue?
Thanks a bunch! Exactly what I was looking for.
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