ESEUTIL 사용법2

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Couldn’t mount the database that you specified. Specified database: DB2; Errorcode: An Active Manager operation failed. Error: The database action failed. Error: An error occurred while trying to select a database copy for possible activation. Error: The database ‘DB2′ was not mounted because errors occurred either while validating database copies for possible activation, or while attempting to activate another copy. Detailed error(s):

An Active Manager operation failed. Error: Operation failed with message: MapiExceptionCallFailed: Unable to mount database. (hr=0×80004005, ec=-550)

Before you can mount a database restored from a backup, it needs to be in a clean shutdown state. You can use the Eseutil tool to check whether a database is in a clean shutdown state – if it is not in a clean shutdown state you can perform a repair to get the database into consistency.

Soft Recovery using Eseutil

The first thing you want to do is verify that the database is in a dirty shutdown state. We can do this using the eseutil /mh command. For example:

the output should be as below:

as long as you can it shows that the DB is closed dirty shut down
also you can see the logs that is missing
we can replay the log files into the DB (if they only exist) using the command eseutil /r /l /d

For example, my log file prefix is E03, and my database and logs are stored in G:\E_\Program Files\Microsoft\Exchange Server\V14\Mailbox\DAGDB1

after it finsihed you can the first command eseutil /mh to confirm that the DB is now in clean shut down state

if after these steps , you try to mount the DB  if it fails to mount then you will have to do a hard repair using the command  eseutil /p

after it finsihed you can the first command eseutil /mh to confirm that the DB is now in clean shut down state , then try to mount the DB , it should mount with you with no problem