If you come across an error ‘unable to mount database’ while mounting Exchange database. This may be due to several reasons like dirty shutdown, missing log files, damaged database or not enough free space on server.
We highly recommend you to take a backup of database EDB and log files before executing the eseutil commands.
To examine the current state of the database and also to perform the Eseutil Soft recovery and hard repair commands to recover the corrupt database.
To verify the current state of the Exchange database
This command gives the result of database current state. If you the database is in dirty shutdown state, fix the dirty shutdown with Eseutil soft repair.
Soft Recovery using Eseutil
To run the command we need log files. Name of the log file starts with E00
To run the Eseutil soft recovery command it is essential to run the command from the folder in which the log files exist, and the EDB files to be recovered are in their original path.
Eseutil /r E00 /l “C:\Program Files\Microsoft\Exchange Server\V14\Mailbox\Logs” /d “C:\Program Files\Microsoft\Exchange Server\V14\Mailbox\ Mailbox Database 1717287248.edb” /i
‘i’ switch in the command to resolve the streaming error during command execution.
After successful execution,
Execute eseutil /mh to verify the is in database clean shutdown state.
Restart Exchange System Manager (ESM) and try to mount the database.
If you still have the error “unable to mount database”, then you have to try Eseutil hard repair.
Hard Repair using Eseutil
Before executing Hard repair command, ensure that you have enough space in the server. While performing hard repair it creates temporary database.
eseutil /p command for hard repair.
After that you can verify the database clean shutdown state by running the command
In hard repair method if it finds damage file page, it deletes them. So there is chance of data loss.
If you are facing the errors like unable to mound the database, dirty shutdown, corrupt database, etc. EdbMails Excahnge server recovery software can fix these issues. This software repairs the EDB file without changing to its original data format and data structure of the database.
EdbMails supports all exchange server versions 2016, 2010, 2007 and 2003
For more info: http://edbmails.com