Exchange DB Size, Sum of size, the largest mailboxes

Windows PowerShell Transcript Start
Start time: 20130131102344
Username : vdi.lab\amasv
Machine : EX2010-2 (Microsoft Windows NT 6.1.7600.0)
Transcript started, output file is C:\Users\amasv\Documents\PowerShell_transcript.20130131102344.txt
[PS] C:\Windows\system32>Get-MailboxDatabase -Status | select ServerName,Name,DatabaseSize

ServerName Name DatabaseSize
———- —- ————
EX2010-2 DB1 24.76 GB (26,585,137,152 bytes)
EX2010-2 DB2 24.51 GB (26,315,128,832 bytes)
EX2010-2 DB3 64.51 GB (69,272,141,824 bytes)
EX2010-2 DB4 112.4 GB (120,677,007,360 bytes)
EX2010-2 DB5 15.63 GB (16,786,194,432 bytes)
EX2010-2 DB6 28.63 GB (30,745,886,720 bytes)
EX2010-1 DB7 136.1 MB (142,671,872 bytes)
EX2010-1 DB8 5.633 GB (6,048,251,904 bytes)
EX2010-1 DB9 3.883 GB (4,169,203,712 bytes)
[PS] C:\Windows\system32>Get-MailboxDatabase -Status | select ServerName,Name,DatabaseSize | Sort-Object DatabaseSize -Descending | measure-object -Property DatabaseSize -Sum -Maximum
Count : 9
Average :
Sum : 300741623808
Maximum : 120677007360
Minimum :
Property : DatabaseSize


[PS] C:\Windows\system32>get-mailboxserver * | Get-MailboxStatistics | sort-object -Property totalitemsize -des | select-object displayname, totalItemSize -first 10

DisplayName TotalItemSize
———– ————-
user1 5.438 GB (5,838,972,934 bytes)
user2 5.421 GB (5,820,989,079 bytes)
user3 2.831 GB (3,040,076,803 bytes)

[PS] C:\Windows\system32>Stop-Transcript
Windows PowerShell Transcript End
End time: 20130131102532

for better sorting

| Select-Object eventid,sender,timestamp,@{Name=“Recipients“;Expression={$_.recipients}},@{Name=“RecipientStatus“;Expression={$_.recipientstatus}},messagesubject |
Export-CSV filename.csv



How manual change logon screen picture Win7

In first step you have to have  admin rights:

regedit tool


2. go to HKLM\Software\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\Background\

set dword key OEMBackground from  0 to 1


3.In path %windir%\system32\oobe\info\

create folder name backgrounds


4. Now put  your picture „JPG“ file with size less than 256 kb in this folder and rename it to backgroundDefault.jpg

Server 2012 Deduplication Data – how check save data

If you have a file server and you want get know how much data  you will be able save if  migrate to Server 2012 , copy from Windows Server 2012  from path c:\windows\system32\ you will found  tool ddpeval.exe (or you can download this tool „“ from skydrive on main page of

This tool only show you, how much data You will be able to save. This tool does not deduplicate ! Examples

ddpeval.exe \\dchv\d 


ddpeval.exe :d


In pictures below you can see how turn on deduplication on the server and result of real deduplication

FIRST  „enable deduplication data“  ( feature of file server role ),




Deduplicate features works with local disks, volumes , no remote network store, remote network shares