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JamesNT
Moderator

USA
3151 Posts
Status: offline
Posted - 04/10/2012 :  07:37:05 AM  Show Profile  Visit JamesNT's Homepage  Click to see JamesNT's MSN Messenger address  Reply with Quote
I was on the phone with a friend last night who was having problems with his Exchange server.

NOTE: He is in the middle of an Exchange 2003 to Exchange 2010 migration. About half of the mailboxes have been moved.

The Windows Application Event Log on the Exchange Server kept complaining about not being able to communicate with the Global Catalog Server and not being able to communicate with the domain controller. OK - DNS issue.

I checked out his DNS and he had a zone for every single A record. So he had 33 zones, each one with a single A-record, all for one subnet. Obviously, this needs to be cleaned up.

The next problem is the message store. After rebooting the machine, the message store came up to a mounted state of "Unknown." All we did was reboot.

The last problem, is he is using Red Hat virtualization as his virtualization platform and says the performance of his 2008 R2 virtual machines is laggy compared to the 2003 virtual machines. Question: Is there any issue with 2008 R2 Windows Server on Red Hat virtual platform that we do not know about? I searched the Interwebs and didn't find too much, but maybe someone else here knows something.

JamesNT
James Summerlin
www.jamessummerlin.com

Jazzy
Administrator

Netherlands
1949 Posts
Status: offline
Posted - 04/10/2012 :  07:57:10 AM  Show Profile  Visit Jazzy's Homepage  Click to see Jazzy's MSN Messenger address  Reply with Quote
quote:
I checked out his DNS and he had a zone for every single A record. So he had 33 zones, each one with a single A-record, all for one subnet. Obviously, this needs to be cleaned up.

Unusual but this can be a trick to make sure that internal DNS queries for this zone, that cannot be resolved internally, are sent to an external DNS server. Assuming they use the same DNS domain name internal and external.
quote:
The next problem is the message store. After rebooting the machine, the message store came up to a mounted state of "Unknown." All we did was reboot.

Need more information. What error message did you get when you tried to start the store manually? What events were shown in the Application Logs?
Jetze Mellema

Exchange specialist
Former MVP (2005-2012)
My blog: http://jetzemellema.blogspot.com (Dutch)
My company: http://www.imara-ict.nl/
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JamesNT
Moderator

USA
3151 Posts
Status: offline
Posted - 04/10/2012 :  11:56:16 AM  Show Profile  Visit JamesNT's Homepage  Click to see JamesNT's MSN Messenger address  Reply with Quote
Jazzy,

They are calling MS PSS this morning. I should have more details later.

JamesNT
James Summerlin
www.jamessummerlin.com
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