Exchange 2003 performanace issues with Entourage Clients

[james.sanger]

We currently have an issue since move mailboxes from one Exchange 2003
server to another. This was due to the need to upgrade server
hardware.

We have 22 Entourage users that are scattered across two Information
Stores. 10 on the first store and 12 on the second store.

We are getting very high disk writes on the second information i.e.
the store with 12 entoruage users. The first store is unaffected.

We have investigated that the issue is caused by the Entourage users
by asking all Entourage clients to disconnect from the Exchange 2003
server. We have then asked them to connect to the server one by one.
We have found that with one of the Entourage users connected, they
cause high disk writes. This has been mointored using PerfMon. This
is effecting the performance for all users with Outlook clients
complaining of slowness when switching calendars or shared mailboxes.

We have researched this issue and I must say it is a common one.

The article:-

http://www.macwindows.com/041107d.html

states that the issue has arisen due to the move of the entourage user
mailboxes as there email has not been converted to Non MAPI hence
causing high disk writes as each mail is read everytime it is
accessed.

We have followed through all the fixes listed and have got some
improved performance but the issue is still not resolved.

Can anyone please advise on any steps to take to resolve this issue.

Our current network structure is:-

3 DC's.
2 Exchange Servers. All is the same Storage Groups.
Approx 100 Outlook Users
22 Entourage / Mac Users.

Thanks

 

[William Smith]

We have investigated that the issue is caused by the Entourage users
by asking all Entourage clients to disconnect from the Exchange 2003
server. We have then asked them to connect to the server one by one.
We have found that with one of the Entourage users connected, they
cause high disk writes. This has been mointored using PerfMon. This
is effecting the performance for all users with Outlook clients
complaining of slowness when switching calendars or shared mailboxes.

We have researched this issue and I must say it is a common one.

The article:-

http://www.macwindows.com/041107d.html

states that the issue has arisen due to the move of the entourage user
mailboxes as there email has not been converted to Non MAPI hence
causing high disk writes as each mail is read everytime it is
accessed.

Hi James!

You're on the right track. Exchange will convert messages of a moved
mailbox on the fly but at the expense of server processing and speed.

Have a look at this Microsoft KB article for more information
<http://support.microsoft.com/kb/317722>.

Hope this helps!

--

bill

William M. Smith, Microsoft Interop MVP - Mac/Windows
Entourage Help Page <http://entourage.mvps.org/>
Entourage Help Blog <http://blog.entourage.mvps.org/>