Exchange Retention Tags

Hello Everyone im new to this forum but i have a exchange 2010 server in our office and im trying to figure out how to recover the white space exchange uses. i read somewhere online that i would have to add retention tags to the exchange. im having some trouble understanding how these tags work for example if i wanted to have the trash and spam and even the sent folders either delete and recover ( im guessing recover means get back the white space) what would i do may a personal tag? please if someone can help explain this or what is the best way to recover white space.
SuperdappaAsked:
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Simon Butler (Sembee)ConsultantCommented:
Retention tags have nothing to do with the white space in the database.
Do you know how much white space is in the database now?

This command will show you:
Get-MailboxDatabase -Status | Select Servername, Name, AvailableNewMailboxSpace

If it less than 25% of the database I wouldn't worry about it.

Exchange uses the white space first, so significant build up shouldn't happen unless you have a massive purge of content. Even then I wouldn't worry about it unless it was over half of the physical size of the database.

Retention tags are used by the archiving system built in to Exchange, which requires Enterprise CALs to use.

Simon.
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SuperdappaAuthor Commented:
i have attached a screen shot of the command you sent me from the exchange shell. and a screen shot of the size of the database.shell commanddrive-space.jpg
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SuperdappaAuthor Commented:
if i move the mailboxes which is what i did the last time the size of the databases was not that big was about 130gigs this is why i asked about the white space, i remembered before i moved these database to a new drive and exchange database it had about 720 gig worth of white space.
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Simon Butler (Sembee)ConsultantCommented:
Going by that screenshot, you have 98mb of white space in the database. That isn't even worth worrying about. 720gb of white space would be a huge amount, I don't think I have ever seen that amount of white space in a database. You shouldn't really let databases go above 300gb.


Simon.
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SuperdappaAuthor Commented:
currently my .edb is 148 gig in size and my log file is 461 gig in size is this normal?
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Simon Butler (Sembee)ConsultantCommented:
Are you backing up your Exchange server?
If not, then that is to be expected, as Exchange keeps building up the logs.
If you are, then I would check the backup is working, it is a full backup not a copy and it is trying to flush the logs correctly.

Simon.
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SuperdappaAuthor Commented:
thanks you have helped alot i just saw that it was not being backedup
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