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RECLAIM white space exchange 2010

We have some exchange servers and they all have the three roles installed. I have noticed that in the last 3 months that there is a significant increase in white space. I have been reading and ran into articles that state dismounting the drive and running native tools to reclaim the white space. Is this really true? Is there an automated way while exchange is running to reclaim white space to the OS.
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techdrive
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techdrive
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EEhotlineCommented:
You could use Eseutil to do a defrag on the databases. You can see how here: http://exchangeserverpro.com/defrag-exchange-2010-mailbox-database/

An offline defrag DOES NOT have to be done regularly, or even at all. It is not something that Microsoft recommends is done routinely, as it is not risk free and requires extensive downtime.

I would suggest to create a new database, move all the data to the new one, and drop the original. Zero downtime, zero risk.
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florin_sCommented:
exchange is reclaiming the whitespace automatically by doing online defrags, have you set this on your server? , please see article below

http://www.shudnow.net/2009/10/25/exchange-2010-24x7-online-defragmentation-and-online-database-scanning/

also this link:

http://blogs.technet.com/b/exchange/archive/2011/12/14/database-maintenance-in-exchange-2010.aspx
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I QasmiCommented:
Yes the best thing is to move all your mailboxes to a new database and thats it
But if you still want your old database then you can perform an offline defrag
and with zero downtime with the help of dialtone database recovery method.

http://technet.microsoft.com/en-us/library/dd876950(v=exchg.150).aspx
http://community.spiceworks.com/how_to/show/17439-create-a-dialtone-database-in-exchange-2010-and-perform-a-recovery
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techdriveAuthor Commented:
Florin_n, Please check your own article which says  the following and yes I have it checked.

"This option is the “Enable background database maintenance (24 x 7 ESE scanning).  This option is not Online Defragmentation, but is rather Database Checksumming."
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florin_sCommented:
you are right I was thinking at the OLD process :)
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techdriveAuthor Commented:
Man this sucks, lol. We have about 300GB free on that same drive. What if I created a new database on that same drive, move the users off and once confirmed delete the old database.
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I QasmiCommented:
Thats  the best thing you can do, this is a faster process as compared to dialtone and defrag as well
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techdriveAuthor Commented:
I think the better idea moving forward is to create a utility database. Any user that gets removed because they leave the company we can delete them there. This way who cares if it gets filled up with white space.
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