Solved

.EDB vs .STM Database sizes

Posted on 2007-11-29
2
2,009 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

Best Practices: Disaster Recovery Testing

Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.

Question has a verified solution.

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

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.
MS Outlook is a world-class email client application that is mainly used for e-communication globally.  In this article, we will discuss the basic idea about MS Outlook, its advanced features, and types of MS Outlook File formats.
In this video we show how to create a Shared 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 >> Sha…
In this Micro Video tutorial you will learn the basics about Database Availability Groups and How to configure one using a live Exchange Server Environment. The video tutorial explains the basics of the Exchange server Database Availability grou…

772 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