Solved

.EDB vs .STM Database sizes

Posted on 2007-11-29
2
2,006 Views
Last Modified: 2008-02-01
We have recently made a tremendous effort to reduce file space on our server by requiring each user to clean up his or her email in hopes that it will reduce the exchange database sizes.
Although each several users have decreased their mailbox size by several gig total, the .EDB and .STM don't seem to have really decreased in size.
I have also noticed that the .STM database (22.5 Gb) is nearly as large as the .EDB database (25.3 Gb). From what I have seen on several other Exchange Servers, the .STM less than half the size of the .EDB.
Can anyone explain the difference of the databases and how to manage the sizes better?
0
Comment
Question by:z711500
2 Comments
 
LVL 15

Accepted Solution

by:
Dave_AND earned 400 total points
ID: 20373711
You need to do an offline defrad to revover the space. If you delete data in the database files, they dont shrink, just have "white space" ready to be filled with new data. do do an offline defrag use the ESEUTIL command within the exchange\bin dir.

http://support.microsoft.com/kb/328804

the STM files and EDB files are usualy about the same have a look at:

http://www.messagingtalk.org/what-is-the-difference-between-a-stm-file-and-a-edb-file

http://support.microsoft.com/kb/555360
0
 
LVL 104

Assisted Solution

by:Sembee
Sembee earned 100 total points
ID: 20373931
The sizes of the files will never decrease without an offline defrag. An offline defrag is total downtime and unless you are going to gain 40% of the space back, it isn't worth the downtime for most sites.

Simon.
0

Featured Post

Free camera licenses with purchase of My Cloud NAS

Milestone Arcus software is compatible with thousands of industry-leading cameras for added flexibility. Upon installation on your My Cloud NAS, you will receive two (2) camera licenses already enabled in the software. And for a limited time, get additional camera licenses FREE.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Disabling the Directory Sync Service Account in Office 365 will stop directory synchronization from working.
Scam emails are a huge burden for many businesses. Spotting one is not always easy. Follow our tips to identify if an email you receive is a scam.
In this video we show how to create a User Mailbox in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Recipients >> Mailb…
The basic steps you have just learned will be implemented in this video. The basic steps are shown to configure an Exchange DAG in a live working Exchange Server Environment and manage the same (Exchange Server 2010 Software is used in a Windows Ser…

919 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

16 Experts available now in Live!

Get 1:1 Help Now