How to Solve “Unable To Mount Database EC=1011 ” Error? Get Solution
“Hlo folks! I am trying to restore the Microsoft Exchange 2010 mailbox into a Recovery Storage Group but when we try to mount the Exchange database it isn’t mounting. It is an MS Exchange Server 2010 sp1 where the Database Availability Group (DAG) is setup for failover and it display the error which states that unable to mount database (hr=0x80004005, ec=1011). Please help me know the solution to fix the this error.”
Exchange database plays a vital role in Exchange Server and every large and small company use it to make the business efficient & more effective. Users or IT administrators need to be very cautious when they try to restore the Exchange database otherwise you have to face some errors or issue where your mailbox database is unable to mount.
Microsoft Exchange Error
Failed to mount database ‘test1’.
mail2FailedError:
Couldn’t mount the database that you specified. Specified database: test1;
Error code: An Active Manager operation failed. Error: The database action failed. Error: Operation failed with message: MapiExceptionCallFailed: Unable to mount database. (hr=0x80004005, ec=1011).
[Database: test1, Server: test1.domain.cn]
An Active Manager operation failed. Error: The database action failed.
Error: Operation failed with message: MapiExceptionCallFailed: Unable to mount database. (hr=0x80004005, ec=1011).
[Database: test1, Server: test1.domain.cn]
An Active Manager operation failed. Error: Operation failed with message: MapiExceptionCallFailed: Unable to mount database. (hr=0x80004005, ec=1011).
[Server: test1.domain.cn]
MapiExceptionCallFailed: Unable to mount database. (hr=0x80004005, ec=1011)
Solution to Solve Error “Unable to Mount Database EC=1011”
After receiving this error, the first and foremost thing that you should check the state of the database by using the eseutil /mh cmdlet give below to see that it is in dirty or clean shutdown state.
Output:
If it is in Exchange dirty shutdown state then users have to bring it back into clean shutdown to mount the database properly. For that, first you have to run the Exchange PowerShell eseutil /r command given below to perform soft recovery Exchange database 2010.
Again check the state of the mailbox database after performing soft repair. If it still shows the database in dirty shutdown then the last option you have left is to use the eseutil /p command to perform hard recovery but if the database bring back into clean shutdown, then users can directly mount the Exchange database without using the command given below:
According to the number of mailboxes and corruption level, this process consumes time and it is not sure that the database will mount. After that defrag Exchange mailbox database. Then run the command given in the below section to fix the logical corruption & repair the Exchange database at the application level.
After performing the given solution the database is in clean state. Now users can use the following steps to mount Exchange database.
Step 1: Open the EMC (Exchange Management Console) > Click on the Organization > Mailbox
Step 2: Open mailbox properties > Click on the maintenance tab
Step 3: Select this “database can be overwritten by restore” > Click OK
Step 4: Mount the Exchange mailbox database
If this manual solution doesn’t work to repair EDB file and bring back into healthy state via ESEUTIL utility. Don’t lose heart, as there is an alternative solution i.e. SysTools Exchange Database Repair Tool to recover the severely damaged/corrupted offline EDB file without using any command.
Use Automated Wizard
Exchange Database Repair Tool supports offline/dismounted Exchange database file. It provides dual scan mode i.e. Quick & Advance scan that resolves database corruption Exchange 2010/2013/2016 and removes corruption from EDB file with no data loss. If your mailbox database is minimally corrupted, for that you can select the quick scan and for major corruption click on Advance scan. Depending on the level of corruption users can select the scan mode to repair Exchange mailbox and EDB file in a hassle-freeway.
This utility support public folders and private mailboxes & users can use this advanced software to extract mailbox from EDB file Exchange 2016/2013 & export directly to the Live Exchange Server, O365 and multiple file formats (PST, EML, HTML, MBOX, MSG, PDF) in a simplified manner. Any users can use this advanced software as it provides graphical interface which makes their work easier and reduces their time & effort too.
The tool automatically creates the export report which contains the success and fail count of exported mailbox data. It supports all versions of Windows OS, Exchange Server and Microsoft Outlook.
Bringing It All Together
Now users have complete information on how to solve the error unable to mount database ec=1011. It is suggested to use the advance solution instead of manual one to repair the mailbox database without any loss of data. Because it doesn’t require any technical knowledge and hands-on experience to use the software. Also, after recovery users can easily export EDB mailboxes to Live Exchange Server, O365 and different file formats in a simple way.