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After moving mailboxes from Exchang 2007 server to 2010, why doesn't space free up?

Posted on 2011-10-11
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I am in the middle of migrating from Win2K3 Server/Exchange 2007 to Win2K8 Server/Exchange 2010.  I've moved mailboxes successfully and the mailboxes no longer show up on the Exchange 2007 server, but it doesn't seem to be releasing the diskspace.  Even after a backup.  I should have about 200 GB of free space, but when I did the backup, it only gave me about 30 GB.

Any clues?
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Question by:aarontheyoung1
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by:CSIPComputing
ID: 36950376
As is true with all versions of exchange, an exchange database does not free up the disk space used until you do an OFFLINE defragmentation of the message store.

To do this, you need to use ESEUTIL *carefully*!

You also need a significant amount of free disk space to store the temporary files created during the defragmentation.

See this article: http://support.microsoft.com/kb/328804
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by:aarontheyoung1
ID: 36950487
Thanks, but this article says nothing about Exchange 2007.  Your information still applies?
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CSIPComputing earned 2000 total points
ID: 36950531
Yes, it still applies, the exact method for 2007 is discussed in this article:

http://technet.microsoft.com/en-us/library/aa998863(v=exchg.80).aspx

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