Question : How do I determine the sizes of an Exchange 2003, Exchange 2007, & Exchange 2010 Information store?

How do I determine the sizes of an Exchange 2003, Exchange 2007, & Exchange 2010 Information store?

I need to be able to know how to do this for all three version of Exchange server.

Answer : How do I determine the sizes of an Exchange 2003, Exchange 2007, & Exchange 2010 Information store?

Try this script:  Works on 200-2007, and perhaps 2010
http://www.petri.co.il/reporting_storage_size_in_exchange.htm

Locations will vary depending on how you set up the Exchange servers.

http://support.microsoft.com/kb/893083
The size of the Exchange information store database is calculated by adding the size of its respective .edb and .stm files.

c:\program files\exchsrvr\mdbdata\