How to show the top 10 biggest Exchange Server 2010 mailbox capacity using Powershell ?

Hi People,

Can anyone here please assist me in modifying the script below to get the number of mailbox size in Gigabytes ?

Get-MailboxServer | Get-MailboxStatistics | Sort-Object TotalItemSize -Descending | Select-Object DisplayName,@{Label="Size(GB)"; Expression={$_.TotalItemSize.Value.ToGB()}}, Database, LastLogoffTime, DeletedItemCount, DisconnectDate | Select -First 13 | ft -auto

because when I executed the script above, it returns blank.

Thanks in advance.
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Senior IT System EngineerSenior Systems EngineerAsked:
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Senior IT System EngineerSenior Systems EngineerAuthor Commented:
hi, the Size in GB doesn't show up still ?
Gareth GudgerSolution ArchitectCommented:
Hey IT,

I confirmed the commands in the article vSolutions linked worked on my 2010 server.

Did you miss some of the command perhaps? I'll paste it here.

Get-Mailbox -Server YOURSERVERNAMEHERE | Get-MailboxStatistics | Sort-Object TotalItemSize -Descending | Select-Object DisplayName,@{Label="Size(Gb)"; Expression={$_.TotalItemSize.Value.ToGb()}} -First 10 | ft -auto

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Senior IT System EngineerSenior Systems EngineerAuthor Commented:
My exchange servers are two stand alone mailbox servers, so there is no cluster name.
Gareth GudgerSolution ArchitectCommented:
My lab is a standalone 2010 SP1 box. That command should work for you on SP2. Replace, YOURSERVERNAME with the name of your Exchange server.
Senior IT System EngineerSenior Systems EngineerAuthor Commented:
Thanks !
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