• From: "Neil Hobson" <neil.hobson@xxxxxxxxxxxxxxxxx>
  • To: exchangelist@xxxxxxxxxxxxx
  • Date: Wed, 9 Jul 2003 10:50:55 -0600

Yes, it's true that ESEUTIL will reduce the size of your database if you
use it in offline defrag mode (the /d switch).

But ask yourself why you want to reduce the size of the database. 
Exchange will reuse the whitespace contained in the database, and once
this has been reused, the physical size of the database will expand again.
 If you reduce the size of the database, it will only grow again in the

The biggest risk with ESEUTIL is when you run it in repair mode (the /p
switch).  Basically, when the repair function finds errors, it deletes the
entire page that the error is in, which means that users will lose some
data.  That's not always that much data, but if your CEO opens a message
and the attachment is then missing...  :-)

That's one of the reasons that using ESEUTIL /p on a database that is then
put back into production isn't supported.

ESEUTIL is a valid, and useful, tool.  But don't run it for the sake of
running it.

Neil Hobson

> Hey all,
> I want to reduce the size of my e2k databases, and ive heard eseutil
> will defrag and free up clear space in the databases.
> Whats the deal with this tool as ive heard people say it can corrupt the
> db and all sorts of nightmare stories.
> Ive read the MS articles regarding this, but they arent particularly
> useful or descriptive.
> I know this subject has come up time and again, so I apologize for going
> over old subjects.
> Cheers
> Luke Marioni
> Senior Systems Analyst
> ITG Europe
> River Plate House,
> 7-11 Finsbury Circus,
> London,
> EC2M 7EB,
> England.
> Tel: +44 (0) 207 670 4200
> Fax: +44 (0) 207 670 4243
> _______________________________________________
> The information in this e-mail and in any attachments is confidential
> and intended solely for the attention and use of the named addressee(s).
> This information may be subject to legal, professional or other
> privilage and further distribution of it is strictly prohibited without
> our authority.
> If you are not the intended recipient, you are not authorised to and
> must not disclose, copy, distribute or retain this message or any part
> of it, and should notify us immediately.
> ITG Europe is a trademark owned by Investment Technology Group Limited =
> (ITGL) which refers to ITGL and/or its subsidiary Investment Technology =
> Group Europe Limited.

Other related posts: