How to Mount Database using Eseutil.Exe?

Eseutil.exe is a command-line utility provided by Microsoft Exchange Server that can be used to manage Exchange databases. However, it’s not recommended to use Eseutil.exe to mount databases, as it can cause data loss and corruption if not used properly.

To mount a database in Exchange, you should use the Exchange Management Shell instead of Eseutil.exe. Here are the steps to mount a database using Exchange Management Shell:

1. Open the Exchange Management Shell.
2. Run the following command to list all the databases on the Exchange server: Get-MailboxDatabase
3. Identify the database that you want to mount.
4. Run the following command to mount the database: Mount-MailboxDatabase -Identity
5. Replace with the name of the database that you want to mount.
6. You may need to specify additional parameters, such as -Verbose or -Force, depending on your specific scenario.
7. After the database is mounted, you can verify its status by running the following command: Get-MailboxDatabase | fl Mounted

It’s important to note that if the database is in a dirty shutdown state, you may need to use Eseutil.exe to repair it before it can be mounted. However, this should only be done as a last resort and only by experienced Exchange administrators who are familiar with Eseutil.exe and its potential risks.

Steps to Use EseUtil for Exchange Database Repair

Before using Eseutil for Exchange Database Repair, it’s important to understand that this tool should only be used as a last resort and should be used with extreme caution. Eseutil has the potential to cause data loss and database corruption if not used correctly. Therefore, it’s recommended to perform a backup of the database before proceeding with any repair process.

Here are the basic steps to use Eseutil for Exchange Database Repair:

• Open the Exchange Management Shell and dismount the affected database using the following command:

Dismount-Database -Identity

• Replace with the name of the affected database.
• Navigate to the folder where the database and transaction log files are stored.
• Make a copy of the database and transaction log files in case of data loss.
• Run Eseutil.exe with the /r switch to perform a soft recovery:

Eseutil /r E00 /l /d

Replace with the path to the folder containing the transaction log files, and with the path to the database file.
If the soft recovery fails, run Eseutil.exe with the /p switch to perform a hard repair:

Eseutil /p

This process can take a long time to complete and may cause data loss. Use this option only if the soft recovery fails and after making a copy of the database file.

• Run Eseutil.exe with the /d switch to defragment and rebuild the database:

Eseutil /d

This process can also take a long time to complete and may require additional disk space.

• After the repair process is complete, run Isinteg.exe to check the integrity of the database and repair any remaining errors:

Isinteg -fix -test alltests

• Once the repair process is complete, remount the database using the following command:

Mount-Database -Identity

• Replace with the name of the repaired database.

It’s important to note that these steps are basic guidelines and the actual repair process may vary depending on the specific situation. It’s also important to have a good understanding of the underlying Exchange architecture and the potential risks involved in using Eseutil before attempting to repair an Exchange database with this tool.