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Exchange 2010  Deleted and Purged users , but unable to free up Mailbox space

Posted on 2013-11-20
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Last Modified: 2013-11-29
My Database is 700GB
Freespace is only 60 GB

I have read about the ESEUTIL  / D   to defrag the drive, but my understanding is that I need more space.

Any suggestions or answers on the proper way to compact my database?
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Question by:Eric64
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Jamie McKillop earned 500 total points
ID: 39665675
Hello,

Is the 60GB free space on the disk or inside the database? The database file size on disk never shrinks. When you delete items, it frees up whitespace inside the database. Exchange will consume any available whitespace before growing the database file on the disk. You can check how much available whitespace you have by running this command:

Get-MailboxDatabase -Status | ft Name, Databasesize, AvailableNewMailboxSpace -Auto

Deleting mailbox items and/or whole mailboxes doesn't immediately free up space. There is a deleted item retention and a deleted mailbox retention setting on each database. Items are not purged until the time set on these expires. You can speed up the purging by decreasing these values.

The only way to decrease the size of the database on disk is to run ESEUTIL and only if you have whitespace inside the database. Generally, I wouldn't recommend doing this as it will cause downtime and it isn't without risk. You also need disk space available that is equivalent to at least the current size of the database. You are better off creating a new database and moving all your mailboxes to the new database. This will be the least disruptive to users and the safest method. You still need disk space equivalent to the size of the database on disk minus the whitespace in the database. Even this process isn't worth the hassle unless you have a significant amount of whitespace.

-JJ
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Author Comment

by:Eric64
ID: 39674872
JJ,
To begin, I truly appreciate your response.
To answer your question my 60GB is free disk space on the partition that the Exchange Database resides.
I notice, that I seem to have an unstable Exchange server when my Disk Free space is below 10% of the total size of the Exchange Database.  So, freeing up space (175GB of deleted/purged) users was my intention.

I will take your advice and add some additional storage , create a new database and move the users over so I do not have any down time.

Thank you again for the Whitespace command, and your help.   I truly appreciate it.

-Eric
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Author Comment

by:Eric64
ID: 39674915
I've requested that this question be closed as follows:

Accepted answer: 0 points for Eric64's comment #a39674872

for the following reason:

The solution is sound, I have been researching my issue and was attempting to filter out the so so solutions with a Sound solution.
JJ offered me suggestions to review my white space, and the pros and cons of other solutions. thus allowing me to chose the better option.

I wish I had a JJ for all my issues     :)
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LVL 37

Expert Comment

by:Jamie McKillop
ID: 39674916
Hello,

It appears that you have accepted my solution, yest you are not assigning points. Please accept my comment and assign points.

-JJ
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Author Comment

by:Eric64
ID: 39675170
JJ , I do not know what I did differently the first time that gave you zero points, however I apologize as I was very pleased with your answer and support.

Are we good at this time?
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