Restore of Exchange Server 2003/2007 fails when restoring to a Recovery Storage Group with error "Unable to restore the selected Microsoft Exchange database 'Mailbox Store' because it is currently mounted"

Article:TECH64713

Created: 2008-01-31

Updated: 2013-03-07

Article URL http://www.symantec.com/docs/TECH64713

Article Type
Technical Solution

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Problem

Restore of Exchange Server 2003/2007 fails when restoring to a Recovery Storage Group with error "Unable to restore the selected Microsoft Exchange database 'Mailbox Store' because it is currently mounted"

Error

V-79-57344-65280 Unable to restore the selected Microsoft Exchange database 'Mailbox Store' because it is currently mounted. Use the Exchange System Manager to dismount it, and then retry the job.
Connection to the restore target has been lost. Operation canceled.

Solution

1) Make sure the Recovery Storage Group Mailbox Store is dismounted. Also make sure that This database can be overwritten is selected on Database tab of the Exchange database.

For more information please refer the following document : http://www.symantec.com/docs/TECH10938

2) If the Mailbox Store in the Recovery Storage Group is already dismounted and if you still receive the same error, create the following registry key on both servers, the Media server and the Remote Exchange server (If Exchange server is a remote server)

Warning: Incorrect use of the Windows registry editor may prevent the operating system from functioning properly. Great care should be taken when making changes to a Windows registry. Registry modifications should only be carried-out by persons experienced in the use of the registry editor application. It is recommended that a complete backup of the registry and workstation be made prior to making any registry changes.

HKLM:Software\Veritas\Backup Exec\Engine\ESE Or HKLM:Software\Symantec\Backup Exec For Windows\Backup Exec\Engine\ESE
Create a New - DWORD Value "ignore mount state" (all in lower case)
Set the value to 1 (Decimal)

3) Restart all Backup Exec services on Media Server and Remote Agent service on exchange server.

4) Run the restore job. If job still fails the contact technical support for further help.

5) Once the restore completes, remove the registry keys to set servers to its original state.

Supplemental Materials

Source	UMI
Value	v-79-57344-65280
Description	Unable to restore the selected Microsoft Exchange database 'Mailbox Store' because it is currently mounted. Use the Exchange System Manager to dismount it, and then retry the job.

TECH10938 Event ID 904, 8012, 8010, or 8003 error messages are logged in the Application log of a Windows Event Viewer, indicating the database was in use, during a restore operation of a Microsoft Exchange 2000 and Exchange 2003 Server database.

TECH71227 How to troubleshoot the error message: "The connection to target system has been lost. Backup set cancelled."

TECH61413 Access is denied when attempting to restore to a Recovery Storage Group (RSG) with Backup Exec for Windows Servers (BEWS)

Legacy ID

313361

Article URL http://www.symantec.com/docs/TECH64713

Restore of Exchange Server 2003/2007 fails when restoring to a Recovery Storage Group with error "Unable to restore the selected Microsoft Exchange database 'Mailbox Store' because it is currently mounted"

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