Solved

How do I resolve a Microsoft Exchange Server having irregular email delays?

Posted on 2014-02-03
5
320 Views
Last Modified: 2014-02-12
Our Microsoft Exchange server Std 2010 has operated with no issues up until recently. Delays occur any time during the day but mostly between 10:00 and 14:00. A day or two may go by where the system is fine though. CPU Utilization normally increases to 100% when delays occur and the NT Kernel System service runs very high.

The server runs as a virtual domain controller and an Exchange Server using Windows 2008 R2 and works together with another SMTP virtual server having GFI Mailessentials 2014 (latest build). Both servers run on Vmware 5.1 and have what we believe to be sufficient resources. There are approximately 250 mail users. A third server runs GFI Mailarchiver that interfaces with the active directory.

Servers have the latest Windows patch releases and Exchange SP3.

There is no antivirus applications running on the servers.
0
Comment
Question by:NoAdmin
[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
5 Comments
 
LVL 63

Expert Comment

by:Simon Butler (Sembee)
ID: 39829532
Exchange isn't normally CPU heavy.
When the CPU goes to 100%, what is actually using it?

Simon.
0
 
LVL 53

Expert Comment

by:Will Szymkowski
ID: 39829573
Do you only see this behaviour during a specific time of day? Check the processes tab and see what is loading at the time. Do you have anti-virus on this server with a specific scanning schedule or backups running on this machine during a period of time?

Will.
0
 
LVL 2

Expert Comment

by:dalberson
ID: 39829756
Be sure that you AntiVirus software is configured to EXCLUDE scanning the email databases...this will definitely cause performance problems if not configured correctly.

Some AntiVirus programs sometimes "forget" even if you have exclusions configured, and start scanning directories and files they shouldn't anyway. In that case, uninstall and reinstall the AV program.
0
 

Accepted Solution

by:
NoAdmin earned 0 total points
ID: 39843856
We have increased the cores on each of the vCPUs and after 5 days have not experienced the problem again so we believe the issue to be resolved.

Many thanks to all for your time and comments.
0
 

Author Closing Comment

by:NoAdmin
ID: 39852820
Problem was resolved
0

Featured Post

Free NetCrunch network monitor licenses!

Only on Experts-Exchange: Sign-up for a free-trial and we'll send you your permanent license!

Here is what you get: 30 Nodes | Unlimited Sensors | No Time Restrictions | Absolutely FREE!

Act now. This offer ends July 14, 2017.

Question has a verified solution.

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

Check out this step-by-step guide for using the newly updated Experts Exchange mobile app—released on May 30.
Resolving an irritating Remote Desktop connection that stops your saved credentials from being used.
This tutorial will walk an individual through the steps necessary to join and promote the first Windows Server 2012 domain controller into an Active Directory environment running on Windows Server 2008. Determine the location of the FSMO roles by lo…
This tutorial will show how to configure a new Backup Exec 2012 server and move an existing database to that server with the use of the BEUtility. Install Backup Exec 2012 on the new server and apply all of the latest hotfixes and service packs. The…

717 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