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Ways to Resolve Unable to Mount Database Exchange 2016, 2013, 2010, 2007

Deepa Pandey | Modified: 2021-02-03T10:52:22+00:00 | Exchange Server, Mailbox Recovery | 6 Minutes Reading

unable to mount database in exchange 2016

Each and every modification is done in the Exchange Server database is recorded in the transaction log files. These files are very important for the normal functioning of the MS Exchange Server. However, if this log file is removed by the user accidentally before it is not written to the associated database, then can generate several issues. For example, failed to mount mailbox database in Exchange 2016, 2013, 2010 & 2007, or generates an error message i.e. unable to mount database (hr=0x80004005, ec=1108). Whenever a user tries to mount the database after, this is the common error encountered by the users.

Apart from this, there are some other errors also that can cause “failed to mount database Exchange 2010” issue. One such reason is a dirty shutdown of the system. There are high chances that a user may lose access to the crucial log files and leads to corruption in the Exchange 2010 database. All such type of situations creates a trouble in accessing the database.

Therefore, it becomes really important for the user to resolve the error: Failed to mount Exchange database 2016, 2013, 2010, 2007. This blog mentions different methods, both manual as well as the automated solution to rectify this problem. It briefly describes a third party solution i.e. SysTools Exchange Server Recovery Software that easily allows to recover Exchange Mailbox database files and errors easily. This utility provides scan mode option resolves Exchange database corruption and repair corrupt EDB files without any loss of data in a simplified manner.

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Common Error Message:

Following is the different type error messages that a user can encounter while mounting the database into Exchange 2016, 2013, 2010, 2007:

Reason Behind “Unable to Mount Database (hr=0x80004005, ec=1108)”

There can be various possible reasons behind this error in Exchange and all of them are discussed below:

  • The most common reason that generates this error is improper or a dirty Shutdown of an application.
  • If the log files deleted before it has been written to the database, then also it generates this error.
  • Corruption in the database of Microsoft Exchange Server 2016, 2013, 2010, 2007.

Methods to Fix Unable to Mount Database in Exchange Issue

If you are looking for the solution to resolve failed to mount database in Exchange 2016, 2013, 2010 & 2007 error, then no need to worry. In this segment of the post, we have discussed four methods to fix this issue.

1: Check and Repair the Exchange Database

If the main reason behind the error is corruption in the Exchange database, then one first need to check the database. After that, take it out from the dirty shutdown state. Therefore, in order to repair the data execute the following commands: eseutil /p. This command will help in repairing the corrupt Exchange EDB file stored at location:

"C:\Program Files\Microsoft\Exchange Server\V14\Mailbox\Mailbox Database\Mailbox Database10.edb"

After executing the repair EDB command, try to re-run the database and confirm the output state. In the case of Clean Shutdown, a user can mount the database. However, if there is some issue while mounting like popping up error messages appears ‘Unable to mount database log files” in exchange 2013, then check the database logs.

2: Check and Repair the Exchange Log File

If there is no issue in the Exchange EDB file, then a user needs to check the Exchange Log file. In addition, while checking the Exchange Log file, always specify E00 as the starting sequence of the logs and execute the following command: eseutil /ml. This is the command that helps users in repairing the Exchange Log File.

"C:\Program Files\Microsoft\Exchange Server\V14\Mailbox\Mailbox Database\E00"

After executing the above command, it will list all logs along with their state. It can be possible that a user might receive an error. But, if there is no issue with the log files, then one can switch to Method 3 to resolve this error.

3: Run the Command Setup /Prepare AD

One can execute the Setup /Prepare AD command from the Exchange Server CD to prepare the Active Directory service for MS Exchange 2010. This command is basically used to repair & recover the MS Exchange Server configuration in the AD automatically. In order to do the same, follow the steps mentioned below:

In Microsoft Exchange Server 2010

  1. First of all, start the Exchange 2010 Help
  2. Then, navigate to Contents tab >> Deployment >> New Installation >> Preparing to Deploy Exchange 2010 option
  3. After that, click on How to Prepare Active Directory and Domains

4: Solve Error ‘Unable to Mount Database’ Using Automated Tool

There are some situations in which a user is failed to mount database Exchange 2016, 2013, 2010, 2007 via manual method. Therefore, to overcome all the limitations and to have a foolproof solution, one can use the third party software i.e. Exchange Server Recovery Tool. The tool has the capability to repair corrupt EDB file and mailboxes.

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The utiltiy provides advanced features  (Quick & Advance scan) that easily remove corruption from EDB file & retrieve Exchange mailbox database witout any loss of data. The Quick scan option recover Exchange database file from minimal corruption and for severely corrupted EDB file select the advance scan.

Moreover, one can easily recover all data from the Exchange Mailbox without compromising data integrity. Apart from all this, the software after recovering EDB file export it to PST file format also. This will increase the accessibility of Exchange EDB file.

The software prvode option to migrate offline Exchange database to Office 365, Live Exchange Server. You can also export Exchange mailbox to PST, MBOX, PDF, EML, MSG, HTML file.  After conversion, the tool auto-create the export report which contains the success and fail count of export EDB mailbox data. This software support all version of Exchange Server, Microsoft Outlook and Windows OS.

To Wrapping It UP

Microsoft Exchange makes it convenient for users to store the database and come along with several interesting features. However, there are some errors associated with this such as “unable to mount database in Exchange 2010.” Therefore, in the above blog, we have learned some manual solutions along with an expert trick to fix this problem.

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