Posted on Wednesday, October 21, 2009 at 12:04 AM
Exchange Server Information Store databases support transaction logging i.e. before committing any data to the database, it is first written to transaction logs. If your database is ever forced to perform recovery, these transaction logs replay and restore the database to a working state. When an Exchange Server Information Store database corrupts, it marks an event indicating the root cause of the issue. You can deduce the problem and thus, take corrective measures to solve it. In cases, when no backup is available to replace the damaged database and ESEUTIL utility also fails to repair, you need to use an effective Microsoft Exchange Recovery
utility that could repair and restore the damaged database.
For an instance, you might receive the below event ID in Application log of Event Viewer:
Date: date Source: ESE
Time: time Category: Logging/Recovery
Type: Error Event ID: 454
Posted on Wednesday, October 14, 2009 at 3:22 AM
Exchange Server database failure or corruption is a very common situation, which could occur to any system at any point of time. In case of failure, a complete backup works as the best remedy to cure this problem. But in some situations, when you restore the Exchange Server Database (EDB) file from an online backup and try to mount database, the database could not be mounted and it remains in corrupted state. These situations might cause critical data loss situations and require Exchange Server Recovery
to be sorted out.
In a practical scenario, after restoring Exchange Server database from the online backup, when you try to mount the Exchange Server database with the help of Exchange System Manager, you might come across the below given error message:
“An internal processing error has occurred. Try restarting the Exchange System Manager or the Microsoft Exchange Information Store service, or both.
ID no: c1041724...
Posted on Tuesday, September 29, 2009 at 2:06 AM
Logical corruption in Microsoft Exchange Server database (EDB) is very problematic and quite difficult to identify and repair than physical damage. The administrators and users are generally unaware of logical corruption to EDB file. Microsoft Exchange Server does not include any inbuilt tool to diagnose and warn you about the logical database corruption. There are no specific symptoms to recognize such kind of corruption. In case of logical corruption, entire database becomes inaccessible and you come across critical data loss situations. In order to overcome logical database corruption, you are required to go for Exchange Recovery
In a practical scenario, when you attempt to access data from Microsoft Exchange Server, you might find the following entries in Application Event Log:
Event ID: 42
Description: MSExchangeIS ((###)) The database engine found a bad page...
Posted on Saturday, September 19, 2009 at 1:58 AM
Removing Virus-Infected Messages From Mailbox May Cause EDB file Corruption
Viruses have become very big threats to our precious and mission critical files, applications, system software and Exchange Server database. In case of Exchange Server database, when the virus infected mail spreads to user’s mailbox, it might damage whole mailbox or sometimes entire Exchange Server Database (EDB file). In these circumstances, all of the valuable data stored in the EDB file becomes inaccessible and results into data loss. At this point, to retrieve your precious and critical data, you need to go for Exchange Server Recovery solution using appropriate tools.
The recovery process in such cases may include deletion of the emails from all the mailboxes on Exchange Server. For this purpose, you could use ExMerge.exe (Exchange Mailbox Merge) application that is included Exchange Server CD...
Posted on Thursday, September 17, 2009 at 11:41 PM
Microsoft Exchange Server is an important part of a collaborative and messaging environment. Due to the importance of Exchange Server database and stored data, you should regularly back it up. But in some situations, when you attempt to backup EDB (Exchange Server Database) file, the process gets terminated halfway due to corruption to EDB file. In such cases, you need to first perform Exchange Server Recovery to sort out the issue to gain access of your mission critical data.
Sometimes when you attempt to create backup of Microsoft Exchange Server database, which is damaged and inaccessible, you might come across the below given error message:
“Database or database element is corrupt”
Furthermore, with this error message, you might also get a statement, which states that this file can not be verified. Due to corruption, the Exchange Server can not recognize the database and thus can not access it. At this point, you need to identify the cause of data loss and carry out Exchange Server Repair by sorting it out...
Posted on Thursday, September 17, 2009 at 11:28 PM
In Microsoft Exchange Server, you can perform hard recovery to retrieve missing or inaccessible data. Such recovery is performed after restoration from online backup, in case of serious database corruption. Hard recovery is the process of replaying a log file, which is similar to the soft recovery. In some cases, the hard recovery can not be completed successfully and the database remains inaccessible and unusable. At this point, you need to go for Exchange Server Recovery to get your mission critical and precious data back.
In a practical scenario, when you attempt to carry out the hard recovery of Microsoft Exchange Server, you might come across -1019 error message. After this error message, you may find the following Event IDs in Application Event Log of Microsoft Exchange Server:
Event ID: 0
Description: (252) Unexpected Win32 error: 0×3E6
Event ID: 122