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jskfanFlag for Cyprus

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Understanding Exchange database White Space

ServerName                              Name                                    AvailableNewMailboxSpace
----------                              ----                                    ------------------------
ExchangeMB1                           MBdatabase8                                   114.2 GB (122,595,180,544 bytes)


Get-MailboxDatabase -identity MBdatabase8 -Status | select ServerName,Name,DatabaseSize

ServerName                              Name                                                DatabaseSize
----------                              ----                                    ------------
ExchangeMB1                           MBdatabase8                                   114.3 GB (122,684,506,112 bytes)


Get-MailboxStatistics -database MBdatabase8 | ft displayname,Totalitemsize,itemcount,storagelimitstat
us

DisplayName                   TotalItemSize                             ItemCount           StorageLimitStatus
-----------                   -------------                                     ---------            ------------------
John Smith                 31.39 MB (32,918,387 bytes)             373                    NoChecking
SystemMailbox{e06250a3-aa0... 318 B (318 bytes)                1                    NoChecking
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jskfan
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ASKER

in the display posted above, you can notice that :
Database size =114.3 GB (122,684,506,112
White space in the database=114.2 GB (122,595,180,544
The only mailbox in the database is about =31.39 MB (32,918,387 bytes)    

I do not understand how did the white space got there? I am not sure if there were mailboxes residing in that database then got moved...
how would an Exchange 2010 Expert explain that ?

Thank you
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Hypercat (Deb)
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thanks