Database can not mount in exchange server 2013 due to Unable to mount database. (hr=0x80004005, ec=-543)

Question

Hello All,
Database can not mount. In this Database domain Administrator mailbox have.
Please suggest. It's very important
The error:
[PS] C:\Windows\system32>Mount-Database -Identity MBX-01 -Force
Confirm
At least one committed transaction log file is missing. Mounting this database will result in data loss. If you can
locate the missing log files, don't continue. Are you sure you want to continue?
[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [?] Help (default is "Y"): a
Failed to mount database "MBX-01". Error: An Active Manager operation failed. Error: The database action failed.
Error: Operation failed with message: MapiExceptionJetErrorRequiredLogFilesMissing: Unable to mount database.
(hr=0x80004005, ec=-543)
Diagnostic context:
    Lid: 65256
    Lid: 10722   StoreEc: 0xFFFFFDE1
    Lid: 1494    ---- Remote Context Beg ----
    Lid: 45120   dwParam: 0x51FF5F0
    Lid: 57728   dwParam: 0x51FF68C
    Lid: 46144   dwParam: 0x51FF709
    Lid: 34880   dwParam: 0x51FF709
    Lid: 34760   StoreEc: 0xFFFFFDE1
    Lid: 41344   Guid: 1c2c8cab-ae3f-40c8-8024-ffc776b22360
    Lid: 35200   dwParam: 0x2EFC
    Lid: 46144   dwParam: 0x51FFA55
    Lid: 34880   dwParam: 0x51FFA55
    Lid: 56264   StoreEc: 0x1388
    Lid: 46280   StoreEc: 0xFFFFFDE1
    Lid: 1750    ---- Remote Context End ----
    Lid: 1047    StoreEc: 0xFFFFFDE1 [Database: MBX-01, Server: EG-EXCHG-01.ABC.com]
    + CategoryInfo          : InvalidOperation: (MBX-01:ADObjectId) [Mount-Database], InvalidOperationException
    + FullyQualifiedErrorId : [Server=EG-EXCHG-01,RequestId=ca57e784-43c7-4357-9ab6-08881c87bb77,TimeStamp=9/18/2014 5
   :31:08 AM] [FailureCategory=Cmdlet-InvalidOperationException] 51350054,Microsoft.Exchange.Management.SystemConfigu
  rationTasks.MountDatabase
    + PSComputerName        : eg-exchg-01.ABC.com

Answer 1

Hi,
This issue indicate corrupted database or corrupted logs. I suggest you to check and repair the database or check and repair the database log.
1. Check the state of database by following command: eseutil /mh "Path of the database"
Ps: Default path of the database is “C:\Program Files\Microsoft\Exchange Server\V15\Mailbox\Mailbox Database\Mailbox Database.edb”
Default path of the log files is “C:\Program Files\Microsoft\Exchange Server\V15\Mailbox\Mailbox Database\E00”
2. If the state is in clean shutdown, move all the log files from the Transaction logs folder location and then mount the database.
3. If the state is in dirty shutdown, check if the log files that is indicated as Logs required is available or not.
4. You can run Eseutil ml “Path of the log file\e00” to make sure that the log files is required is in a Clean state. This command will help you check the health of all the log files in the location.
5. If the log files are healthy, then try Soft recovery with the command Eseutil /r e00 /l ”Path of log files” /p “Path of the database” 
Note:
Make sure you make a backup of the database before attempting any kind of repairs
6. Once the command completes successfully, then mount the database.
7. In case the required log files are not available in a clean state or missing, either restore from a successful back up or perform Hard repair with defragment.
Refer to this file about hard repair:
http://gallery.technet.microsoft.com/Step-by-Step-Exchange-2013-f8bed401
Hope this will be helpful for you