Shulou(Shulou.com)06/03 Report--

Problem description:

After a smooth cross-site migration, the original site Exchange Server 2013 is offline. An error is reported after the uninstall operation is performed normally, and the subsequent uninstall cannot be carried out through the graphical interface.

Environment (software / hardware): Win Ser2012 R2 + Exchange Server 2013 CU21

Attached error message and error screenshot:

* error:

Run "$error.Clear ()"

Get-MailboxDatabase-server $RoleFqdnOrName | remove-MailboxDatabase

The following error is generated when "System.InvalidOperationException: the database" MB01DB01 "has multiple copies on other servers." To delete the active database, you must first delete all copies from other servers.

In Microsoft.Exchange.Configuration.Tasks.Task.ThrowError (Exception exception, ErrorCategory errorCategory, Object target, String helpUrl)

In Microsoft.Exchange.Management.SystemConfigurationTasks.RemoveDatabaseTask`1.InternalValidate ()

In Microsoft.Exchange.Management.SystemConfigurationTasks.RemoveMailboxDatabase.InternalValidate ()

In Microsoft.Exchange.Configuration.Tasks.Task.bb ()

In Microsoft.Exchange.Configuration.Tasks.Task.InvokeRetryableFunc (String funcName, Action func, Boolean terminatePipelineIfFailed) ".

Cause analysis:

According to the analysis of the error reporting problem, looking at the current migrated mail environment, it is found that the database activation and site synchronization on the mail server to be uninstalled are abnormal. When the residual information of the last uninstall failure after repairing the problem has been marked with the truncation value in the registry, so the second uninstall step can not be uninstalled normally.

Steps to resolve: *

At the beginning of dealing with this problem, we need to understand that when you normally uninstall the mailbox backend server, you need to do the following in advance:

a. Remove the server database copy to be uninstalled; b. Remove the mail host to be uninstalled in DAG; c: perform domain control site information synchronization

The specific steps are as follows:

1. According to the error prompt, view the current server database object information:

PS. The copy information of the server has been removed on the new site, and the database information can still be queried on the current server. After restarting the Microsoft Exchange information storage service, check the no database information again.

two。 Perform the Exchange uninstall operation again, prompting "an incomplete installation was detected in error. Run setup to complete the Exchange installation." :

3. According to the prompts, hang it on the Exchange installation CD and enter the extracted installer directory, and perform the command line uninstall operation:

Command: setup / mode:uninstall

4. Complete the uninstall operation.

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