Determine space of Exchange information store

Posted on 2011-09-20
Last Modified: 2012-05-12
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)
Question by:SmallPrint
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LVL 13

Expert Comment

ID: 36567742
You will need to perform an offline defragmentation of the Exch DB to claim back the space:

You should do this to a drive that has 110% of the current size of DB available

Author Comment

ID: 36567776
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?

Author Comment

ID: 36567852
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LVL 13

Accepted Solution

Govvy earned 200 total points
ID: 36567934
You can determine size via ESEUTIL /MS <db path>

Author Comment

ID: 36567989
And that command with tell me the amount of White space in the DB?

Author Comment

ID: 36568237
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.

LVL 13

Expert Comment

ID: 36568592
Yes it should give you breakdown of used space. See

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