Knowledge
[1771] Can’t Mount Exchange 2007 Information Store, database
Release date: 11 september 2012 | Author: Ralf Musterd
Using these instructions is on your own responsibility.
Problem:
Can’t Mount Exchange 2007 Information Store, database
Solution:
First, run eseutil /mh in the cmd to check your database state:
Change to the C:\Program Files\Exchsrvr\Bin folder, and then run the eseutil /mh command by using the following syntax:
eseutil /mh "d:\Exchange\Databases\Mailbox store\Mailbox Database.edb"
Presuming that your Exchange installation is on Program files\Microsoft Exchange Server\Bin, mostly on your c-drive and your .edb database locates on d:
Note: Ofcourse you can also use the 'Verify database and transaction log file' option build in the Microsoft Exchange Troubleshooting Assistant to run eseutil /mh. The Microsoft Exchange Troubleshooting Assistant can be found in your Exchange managment Console, under Toolbox.
If eseutil /mh reports:
---------State = dirty shutdown
- Start de Exchange management Console
- Open Toolbox
- Open Database Recovery Management: Repair Database. Remember that database defragmentation (part of the repair process) creates a huge temp.edb file, so it needs sufficient free space on your harddisk. By default the temp.edb will be stored in the logfile folder. That’s the partition that needs the 120% of the original database of free space! Wait till you get a 100% repair result. (can take a while)
- Check database state again with: eseutil /mh
- If the database is still in a dirty shutdown state, then the database seems to be permanently damaged. Looks like you do not got another choice then to restore the database from the last backup.
- Restore the Information Store from your back up and run point 1 – 4 again.
--------- State = clean shutdown
- If the database is in a clean shutdown then are getting close to the solution. First try to mounted the database store. If you do not succeed, there could be a logfile problem.
We found the following errors in the Application Event viewer:
Error 11-9-2012 1:11:42 ESE 412 Logging/Recovery
MSExchangeIS (2716) First Storage Group: Unable to read the header of logfile E:\ExchangeLog\E00.log. Error -501.
Mounting the database could results in the following direct error message:
Exchange Database: Fehlercode: MapiExceptionCallFailed: Unable to mount database. (hr=0x80004005, ec=-501)
- When the database state in clean (check with eseutil /mh command), but you can’t mount the exchange database and this is the only Exchange database in your environment, then simply move the exchange logfiles (cut + past, please do not delete) to a different folder. Mount the database again and the logfiles will be recreated.
| 
