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DB copy initialises every 30 minutes

Question
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I've got a really strange issue on one of my exchange servers that hosts DB copies.
It seems that every 30 minutes the copy is going to initialized state. The logs are really interesting.
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In Apps and Services > Microsoft > Exchange > MailboxDatabaseFailureItems > Operational, there is an informational log:
Information, Date, MailboxDatabaseFailureItems, 1, Store
Failure Item (Namespace=1, Tag=16, Database=...)
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In Apps and Services > Microsoft > Exchange > High Availability > Operational, there are a couple logs:
Information, Date, HighAvailability, 811, ReplayState
At initialization, database copy 'DB\SVR' has logs in the generation range (7938745 - 7939917) and required logs in the range (7939912 - 7939917).
Information, Date, HighAvailability, 338, Database Action
Incremental Reseed for database 'DB' finished divergence checking and/or resynchronizing the log stream. (IncReseed Needed Check Duration=00:00:00.8157229, IncReseed Duration=00:00:00)
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And in In Apps and Services > Microsoft > Exchange > High Availability > Debug, there are loads of logs, approximately 9 every 30 mins, going from replay state "RestartSoon" to ReplayState "CopyStatusEnum"
Any ideas?!
Monday, November 11, 2013 3:20 PM
All replies
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Hi,
1. Please locate to Event Viewer-Applications and Services Logs-Microsoft-Exchange-MailboxDatabaseFailureItems-Operational, post detailed information about the above Failure Item you provided for my further research.
2. Please run the following cmdlet to check if the DAG is in healthy replication status:
Get-MailboxDatabaseCopyStatus
Test-ReplicationHealth
If there are any problems, please feel free to let me know.
Best regards,
AmyAmy Wang
TechNet Community SupportTuesday, November 12, 2013 8:34 AMModerator -
Hi Amy,
As requested:
Log Name: Microsoft-Exchange-MailboxDatabaseFailureItems/Operational
Source: Microsoft-Exchange-MailboxDatabaseFailureItems
Date: 12/11/2013 09:00:21
Event ID: 1
Task Category: Store
Level: Information
Keywords:
User: SYSTEM
Computer: excsvr
Description:
Failure Item (Namespace=1, Tag=16, Database=CN=DB,CN=Databases,CN=Exchange Administrative Group (FYDIBOHF23SPDLT),CN=Administrative Groups,CN=ORG,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=domain,DC=co,DC=uk, Instance=)
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Exchange-MailboxDatabaseFailureItems" Guid="{08E893EA-4C11-4FFF-A737-99B9EEDEE4F4}" />
<EventID>1</EventID>
<Version>0</Version>
<Level>4</Level>
<Task>1</Task>
<Opcode>0</Opcode>
<Keywords>0x8000000000000000</Keywords>
<TimeCreated SystemTime="2013-11-12T09:00:21.491438800Z" />
<EventRecordID>9943</EventRecordID>
<Correlation />
<Execution ProcessID="5688" ThreadID="9700" />
<Channel>Microsoft-Exchange-MailboxDatabaseFailureItems/Operational</Channel>
<Computer>excsvr</Computer>
<Security UserID="S-1-5-18" />
</System>
<UserData>
<EventXML xmlns:auto-ns2="http://schemas.microsoft.com/win/2004/08/events" xmlns="myNs">
<Version>1</Version>
<Namespace>1</Namespace>
<Tag>16</Tag>
<DatabaseGuid>{DC22CD70-5BE5-4C87-ACD1-85C17928C1F7}</DatabaseGuid>
<DatabaseInstanceName>
</DatabaseInstanceName>
<Component>Store</Component>
<IOErrorIsSpecified>false</IOErrorIsSpecified>
<NotificationEventIsSpecified>false</NotificationEventIsSpecified>
<IOError>
<Category>0</Category>
<FileName>
</FileName>
<Offset>0</Offset>
<Size>0</Size>
</IOError>
<NotificationEvent>
<EventID>0</EventID>
<ParameterBufferSize>0</ParameterBufferSize>
<ParameterBuffer>
</ParameterBuffer>
</NotificationEvent>
</EventXML>
</UserData>
</Event>[PS] C:\Windows\system32>Test-ReplicationHealth
Server Check Result Error
------ ----- ------ -----
excsvr ClusterService Passed
excsvr ReplayService Passed
excsvr ActiveManager Passed
excsvr TasksRpcListener Passed
excsvr TcpListener Passed
excsvr DagMembersUp Passed
excsvr ClusterNetwork Passed
excsvr QuorumGroup Passed
excsvr FileShareQuorum Passed
excsvr DBCopySuspended Passed
excsvr DBCopyFailed Passed
excsvr DBInitializing Passed
excsvr DBDisconnected Passed
excsvr DBLogCopyKeepingUp Passed
excsvr DBLogReplayKeepingUp Passed
Tuesday, November 12, 2013 9:18 AM -
Hi,
About the above Microsoft-Exchange-MailboxDatabaseFailureItems/Operational log, it just is an information and it isn't an error. We can just ignore it. What's more, the result of Test-ReplicationHealth cmdlet is normal.
I would like to verify if the status of DB copies is Health. Besides, I recommend you run Get-MailboxDatabaseCopyStatus cmdlet and see the result.
Hope it helps.
Best regards,
AmyAmy Wang
TechNet Community SupportThursday, November 14, 2013 2:09 AMModerator -
Hi Amy,
The database copies are all Healthy or Mounted, it is the first thing i'd look at
J
Thursday, November 14, 2013 10:13 AM -
Hi,
From your description, maybe there is a need using advanced tools to check your environment via remote connection. It's better to get a help from Microsoft Support.
If you still would like to handle this issue on forum, I will continue to help you.
Best regards,
Amy
Amy Wang
TechNet Community Support
- Edited by Amy.WangModerator Tuesday, November 19, 2013 7:19 AM
Friday, November 15, 2013 7:47 AMModerator