Determine space of Exchange information store

I am trying to determine the size of our Exchange information store.

I have located both priv1.edb, and priv1.stm.  Are the size of both files an accurate way to determine how much space is being used?  Both files add up to 150GB...but will this 150 number go down if I delete a couple of power users maiboxes? How much of the 150 is actually being used...or does the edb and stm size constantly reflect the correct DB size. (does the number ever decrease)
SmallPrintAsked:
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GovvyConnect With a Mentor Commented:
You can determine size via ESEUTIL /MS <db path>
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GovvyCommented:
You will need to perform an offline defragmentation of the Exch DB to claim back the space: http://support.microsoft.com/kb/328804

You should do this to a drive that has 110% of the current size of DB available
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SmallPrintAuthor Commented:
My DB size is capped at 160GB (confirmed via registry).  

So until I do an offline defrag, is the size of my edb and dtm file a accurate representation of how much space is being used?  Is it possible only 130GB of the 150GB (size of edb+stm)is being used?
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SmallPrintAuthor Commented:
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SmallPrintAuthor Commented:
And that command with tell me the amount of White space in the DB?
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SmallPrintAuthor Commented:
Is there any script that will run in Win2003 that can tell me the amount of white spacEce? I don't want to take the DB offline.

Thanks
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GovvyCommented:
Yes it should give you breakdown of used space. See http://www.msexchange.org/tutorials/exchange-isinteg-eseutil.html
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