I am having issues with my Exchange 2010 servers. I have two servers that have HUB/CAS/MAILBOX installed on them. They are configured to use DAG failover cluster. The Domain controllers are Server 2003 and they provide DNS.
I experienced an issue recently where the DNS entry for the DAG and the MAIL01 server where missing from DNS on the Domain Controllers. PACMAIL02 DNS entry was fine. I read online that a way to fix the issue was to recreate the DAG DNS and make sure it has special permissions so that the two mail servers can update the DNS entry. That didn't work. I also recreated the DNS entry for the MAIL01 server. Other than the DAG DNS entry not being updated the DAG cluster seems to be working fine.
When I run the command Get-Cluster -domain domain.local the cluster name DAG is listed twice.
Are there any other tests I can run to see what the issue could be?
I need some help with this issue and any suggestions would be great.
On the Active Node of the Cluster I get the following events:
Log Name: System
Source: Microsoft-Windows-FailoverClustering
Date: 2/12/2013 9:09:03 AM
Event ID: 1196
Task Category: Network Name Resource
Level: Error
Keywords:
User: SYSTEM
Computer: MAIL01.domain.local
Description:
Cluster network name resource 'Cluster Name' failed registration of one or more associated DNS name(s) for the following reason:
DNS operation refused.
.
Ensure that the network adapters associated with dependent IP address resources are configured with at least one accessible DNS server.
Event Xml:
Log Name: System
Source: Microsoft-Windows-FailoverClustering
Date: 2/12/2013 9:09:03 AM
Event ID: 1579
Task Category: Network Name Resource
Level: Warning
Keywords:
User: SYSTEM
Computer: MAIL01.domain.local
Description:
Cluster network name resource 'Cluster Name' failed to update the DNS record for name 'DAG.domain.local' over adapter 'MAPI'. The error code was 'DNS operation refused. (9005)'. Ensure that a DNS server is accessible from this cluster node and contact your
DNS server administrator to verify the cluster identity can update the DNS record 'DAG.domain.local'.