Microsoft Exchange Server lists all the transaction, which you performed on the server, in Transaction Log File. It helps you to find out the details about failed transactions and fix the particular problem. There are some cases where the transaction log file of MS Exchange Server may corrupt and leave your database in unusable state. In case of transaction log file corruption, you may not mount the database and encounter critical data loss situations. At this stage, Exchange Server recovery is the only way to get your precious data back.
For instance, you may run across the below error message when you attempt to mount an Exchange Server mailbox or public store after log file corruption:
“An internal processing error has occurred. Try restarting the Exchange System Manager or the Microsoft Exchange Information Store service, or both. ID no: c1041724”
At the same time, you may see any of the below events in Application Event Log of Microsoft Exchange Server:
1. Event ID: 465
Source: Ese98
Type: Error
Computer: Server1
Information Store (2184) Corruption was detected during soft recovery in logfile C:\Programme\Exchsrvr\mdbdata\E00000E8.log. The failing checksum record is located at position 6531:471. Data not matching the log-file fill pattern first appeared in sector 6600. This logfile has been damaged and is unusable.
For more information, click http://search.support.microsoft.com/search/?adv=1.
2. Event ID: 454
Source: Ese98
Type: Error
Computer: Server1
Information Store (2184) Database recovery/restore failed with unexpected error -501.
Subsequent to the above errors, you cannot mount the database and access stored data from it. In order to gain access of your valuable data, you must fix this problem through Microsoft Exchange recovery solutions.
Root of the problem:
This behavior generally occurs due to log file corruption or Exchange Server public store corruption. In both the situations, database can not be mounted and accessed.
Resolution:
You need to remove the log file and reboot Exchange Server, if problem is caused by log file corruption. On the other hand, if public store corruption is causing this behavior, you need to repair database using Exchange recovery software. The Exchange recovery tools successfully handle all corruption scenarios.
Stellar Phoenix Mailbox Exchange Recovery is a read-only software with simple graphical user interface to offer safe and easy recovery. The software works well with Microsoft Exchange Server 2007, 2003, 2000, and 5.5.
