Solved

Exchange going really slow - outlook exclamation mark!

Posted on 2008-10-17
4
1,001 Views
Last Modified: 2011-10-19
We have exchange 2003 running on server 2003 R2 across two sites, one domain. Was running fine until last week when people started getting "outlook is trying to contact exchange server" exlamation error. CPU was fine as was memory. We defraged just in case overnight but still no difference.
Then, by coincidence, we had to reboot our DC for the site. (which is also the GC). Immediately exchange recovered and was lighting fast. Since then we still get slowdowns, but these are immediatly resolved by rebooting the DC. Error logs don't seem to show anything untoward and now at a loss to explain/fix it..................
0
Comment
Question by:davelongman
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
4 Comments
 
LVL 8

Assisted Solution

by:greesh_hem
greesh_hem earned 200 total points
ID: 22740685
Try to run a DCDiag on the exchange server with the switch

DCdiag /s:Servername

where Servername would be the NETBios name of your domain controller and try to look at the diagnostics to see if you find any failures.

Also try to take a network trace since there is a good possibility that the network packets may be getting dropped.
0
 
LVL 1

Author Comment

by:davelongman
ID: 22740831
Dcdiag passed all tests - file attached.

What's the best way to take a network trace please?

Thanks,
dcdiag.txt
0
 
LVL 8

Assisted Solution

by:greesh_hem
greesh_hem earned 200 total points
ID: 22765128
Install Netmon on one of the Outlook client machine and then run it from there.

http://blogs.technet.com/netmon/
0
 
LVL 1

Accepted Solution

by:
davelongman earned 0 total points
ID: 22851170
Thanks greesh hem, we didn't see packet loss so ran exchange tech assistant. This has shown RPC delays and also a disk bottleneck occuring (we believe due to MAPI clients increasing over time). I am going to install a new scsi drive and move the transaction logs over so hopefully this will resolve the situation. I am confused as to why booting the GC improved matters, but I think it may be because exchange then temporarily stops the processing that was hammering the disk access and then once it found the backup GC it started to slow down again.

Thanks for your help in at least proving it local to the exchange server itself, even though initial diags looked like a DC/AD problem.
0

Featured Post

Is Your AD Toolbox Looking More Like a Toybox?

Managing Active Directory can get complicated.  Often, the native tools for managing AD are just not up to the task.  The largest Active Directory installations in the world have relied on one tool to manage their day-to-day administration tasks: Hyena. Start your trial today.

Question has a verified solution.

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

This article shows how to deploy dynamic backgrounds to computers depending on the aspect ratio of display
How to resolve IMCEAEX NDRs in Exchange or Exchange Online related to invalid X500 addresses.
The video tutorial explains the basics of the Exchange server Database Availability groups. The components of this video include: 1. Automatic Failover 2. Failover Clustering 3. Active Manager
Exchange organizations may use the Journaling Agent of the Transport Service to archive messages going through Exchange. However, if the Transport Service is integrated with some email content management application (such as an antispam), the adminiā€¦

740 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