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Repair and Recover Corrupt Exchange Database Files

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One or the other day, all Exchange Server Administrators goes through the corruption issues of Exchange database. Corrupted Exchange database is similar to a trigger for a psychological breakdown the battlefield. The moment they come across such a situation, they insanely start unusual methods for recovering Exchange database. In fact, this is a common problem where admin faces the logical bugs called, User Mailbox Damage. Users’ mailboxes hold emails, contacts, notes, and other related information stored in a file named EDB file. To recover corrupt Exchange database should not be first step for an admin to save db, rather it should be the last one. Therefore, to keep users mailboxes safe, is the primary and most crucial thing for an organization because once if the Database will be damaged then users become inaccessible to it crucial data.

One common reason for corruption of EDB files is the overloaded Exchange Server’s data repository as they are storing all data in a structured manner and when the database get full then a common error like “Jet Database Engine error”, “Edb.log errorsoccurs.

Reason that Damage Exchange Database

There are a lot of common causes that lead to the damage of Exchange server. The serious breakdown to repair damaged Exchange 2003 database were observed because of it old dated file management system, whereas log file handling in Exchange 2010 database remained the same. Few of the well-known reasons are mentioned below:

– Abrupt system Shut Down.

– Server Downtime/ Server Dirty Shut Down

– Header Corruption.

– Virus Attack

– JET Engine Errors

Repair & Recover Corrupt Exchange Database Manually

If you have noticed we mentioned the common errors and reason why they occur. Depending on the degree of corruption within the database, it might not be possible to mount it to perform a traditional backup. A clean up process could be done before recovering.

The process to repair corrupted database can be done by following the below mentioned methods:

Backup Exchange Mailboxes: This is the first and foremost step that a user must perform before initiating any process. Probably, recovery procedure can lead to loss of mailbox components. It is highly recommended to take a backup of the mailboxes.

Verify Your Application Logs: Application log files can help the user to detect the actual cause which is responsible to recover corrupt Exchange database. The following procedure helps you to show the application log:

  • Click on Start and then select Programs-> Application Tools-> Event Viewer
  • Select System Log in the Console Tree
  • In the details panel, click on Source to locate appropriate entry for any of the Exchange services to sort the log in alphabetical order Next, double click the log entry to launch properties page to recover the corrupted Exchange database
  • In View menu select Filter to filter log and display entries for particular SMTP
  • Next, in the System Log Properties select SMTPSVC under Event Source list and select a definite set of events in the Category list
  • Click OK

Run inbuilt Utilities: To run Exchange tools globally on the Server to repair damaged Exchange 2010 database, During Exchange setup, several tools such as Eseutil and Isinteg are installed by default at “..\exchsrvr\bin” directory. Exchange 2007 Mailbox Repair using Eseutil utility. You can perfectly fix, recover & restore Exchange 2007 mailbox to PST with complete whole procedure.

  • Open Terminal and run the query ‘C:\Program Files\Exchsrvr\bin directory
  • Next type exe to Run Eseutil with p ‘Eseutil\p‘for danaged files.
  • Run Eseutil with switch d ‘Eseutil\d‘ to defrag the recovered files
  • Run integrity check tool “Isinteg to analyze integrity c:\program files\exchsrvr\bin>isinteg -s servername -fix -test alltests
  • Next run Isinteg\g to recheck the EDB accuracy parameters
  • Use the administrative tools to mount the recovered EDB.

Exchange 4.0, ESEUTIL was one of the go-to utilities for any administrator to get the damaged database, but the database now are of great size. The method is not applicable for a big EDB files.

Error-free Approach to Exchange Database Repair

The above-mentioned technique is a little tricky and the person who is not having the proper knowledge won’t be able to recover their database. If the user doesn’t want to get into complexity then SysTools Exchange Recovery is the apt solution. The software is capable to recover corrupt Exchange database. It can manipulate a large volume of data from corrupt EDB (Exchange Database) files. It looks after the security and integrity of data and provides Date and Time-based Filtering to restore mails including attachments, calendars, tasks, contacts, notes in multiple file formats like HTML / PDF / MSG / EML. It is compatible with Exchange Server 2016, 2013 and all other previous versions. In addition, the tool can also export recovered data to a live Exchange Server as well as Office 365, which not all software could probably perform

Conclusion

Repair corrupted Exchange 2010 & 2013 mailbox was the most common and most asked query that we were coming across. As the .edb file gets damaged, Server Admin will need an Exchange Database Recovery tool to recover users’ mailboxes from it. The outstanding features of the software make it a reliable, convenient, and output-driven. The provided manual, as well as Third party tool, would help Server admin to get enjoyable experience in the process to recover corrupt Exchange database.