Re: ESEUTIL
- From: "Luke Marioni" <lmarioni@xxxxxxxxxxxxx>
- To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
- Date: Thu, 10 Jul 2003 08:59:58 +0100
So basically, even if im running e2k standard with the 16gb limitation,
as long as my users keep their mailbox sizes down and mailbox management
runs, I should be in no danger of it hitting the 16gb limit?
Cheers
L
-----Original Message-----
From: Mark Fugatt [mailto:mark@xxxxxxxxx]
Sent: 10 July 2003 08:54
To: [ExchangeList]
Subject: [exchangelist] Re: ESEUTIL
http://www.MSExchange.org/
Morning Neil, nice to see you :-)
Mark Fugatt
MCT, MCSE, Microsoft Exchange MVP
Pentech Office Solutions Inc
Tel: 585 586 3890
Cell: 585 576 4750
Fax: 585 249 0316
www.4mcts.com
www.exchangetrainer.com
-----Original Message-----
From: Neil Hobson [mailto:Neil.Hobson@xxxxxxxxxxxxxxxxx]
Sent: Thursday, July 10, 2003 3:53 AM
To: [ExchangeList]
As your users delete mail from the database, whitespace (or 'holes' if
you
prefer) is created. The online overnight maintenance of Exchange
reorganises the database such that the whitespace is contiguous (as much
as possible, anyway). Exchange will then reuse this whitespace before
expanding the size of the database.
After you've shrunk the database, Exchange will then simply start to
expand it again as new mail flows. Expanding the database is a more
expensive operation than reusing the whitespace (on a performance
basis).
So what have you gained by shrinking the database? Nothing really. A
bit of disk space, which shouldn't matter that much if you've sized your
disk volumes well, and disk space is cheap.
It's not considered best practice at all; if anything, it just wastes
your time. You shouldn't causes any harm by doing it, but why do admin
tasks that you don't need to? I don't run regular defrags on any of my
customers'
Exchange servers - at least, not since Exchange 5.5 was released. :-)
Cheers,
Neil Hobson
Silversands
http://www.silversands.co.uk
-----Original Message-----
From: Lorie Gordon [mailto:lgordon@xxxxxxxxxxxxxxxxxx]
Sent: Wed 09/07/2003 18:50
To: [ExchangeList]
Cc:
Subject: [exchangelist] Re: ESEUTIL
I defrag my database on a regular basis and always thought that
it was a "best practice". Am I wrong about this? I have Exchange
standard edition with limited database size. After users archive and
mailboxes are deleted I often run the defrag to recover space. Is this
not recommended???
Lorie Gordon
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-----Original Message-----
From: Neil Hobson [mailto:Neil.Hobson@xxxxxxxxxxxxxxxxx]
Sent: Wednesday, July 09, 2003 12:03 PM
To: [ExchangeList]
Subject: [exchangelist] Re: ESEUTIL
http://www.MSExchange.org/
Sorry, I meant to say "isn't recommended" rather than "isn't
supported"
below. It's time to go home here now. :-)
Neil Hobson
Silversands
http://www.silversands.co.uk
-----Original Message-----
From: Neil Hobson
Sent: 09 July 2003 17:51
To: [ExchangeList]
http://www.MSExchange.org/
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
future.
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
Silversands
http://www.silversands.co.uk
> 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
>
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> Technology = Group Europe Limited.
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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.
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