MS Exchange Repair Tool to repair corrupted or damaged edb file

Error 4294967041, when you are hoping to start the Information Store service in Exchange Server implies that something creepy thing has got attached with. The service may stop responding at all and on top of that, an inquiry about the lying databases through eseutil/mh command may give you shocking news of EDB inconsistencies.

At this stage, attempting EDB recovery via eseutil /r command will again push you in a real dump when the following error message will prompt:

“-255 : JET_errDatabaseBufferDependenciesCorrupted”

Let’s come to know the reasons. Well, the topmost reason playing behind this corruption scenario is the unexpected shutdown of the Exchange Server system, more likely due to power outage.

Actually, before the shutdown if the three step process, which the ESE (Extensible Storage Engine) performs to commit the transactions to the Information store database, is not completed the error message may be seen. This particularly happens because the links to the data, stored in the memory buffers may get lost and thus the buffer dependencies get corrupted.

The first helping tool can be database backup, if exists or else EDB repair would do. Though using the inbuilt power of Exchange Server through Eseutil utility can do, but keep in mind that data loss can result as this will delete the corrupted information from the database, instead of actually correcting it. If you can resist this, then try out Eseutil for your private information store (Priv.edb) and public information store (Pub.edb).

For this use eseutil/r first and if it doesn’t succeed then use eseutil/p for hard repair. The use of esutil/d for defragmentation and isinteg-fix for correcting the logical schema errors is also necessary, without that Exchange Server recovery would not be fruitful.

On the other hand, for having complete Exchange Server repair, make use of third party applications which through the safe and effective scanning algorithms don’t harm any of the database content. These EDB repair utilities are the real applications to have the complete database, free from corruption.

EDB recovery software have the interactive interface, safe procedure and the ability to work effectively. These Exchanger repair software would never let you fall in any of the corruption instance.

Stellar Phoenix Mailbox Exchange Recovery is the ultimate answer for having EDB repair. This product works effectively for extracting all the mailboxes and granting Exchange Server repair for all the objects like e-mails, notes, journals, tasks and others. This Exchange Server recovery software will give you the repaired mailboxes in PST file format.

Exchange Server databases have two basic files, EDB and STM. As its supports transaction logging, uncommitted set of transactions are stored in log files. Users’ mail boxes are stored in EDB files. So when Exchange Server database corrupts, EDB Recovery is basically focused for extracting user mailboxes from EDB files. However, one of the symptoms that Exchange database is corrupt is that it will fail to mount. In addition, it will mark an event in application log like:

Event Type: Error
Event Source: ESE
Event Category: General
Event ID: 486
Description: Information Store (3932) First Storage Group: An attempt to move the file “E:\Program Files\Exchsrvr\mdbdata\E00.log” to “E:\Program Files\Exchsrvr\mdbdata\E000080A.log” failed with system error 2 (0×00000002): “The system cannot find the file specified.” The move file operation will fail with error -1811 (0xfffff8ed).

Also, an error message is encountered about internal processing errors. Other than Exchange database corruption, above log may also create while these issues:

• Application log may record this event due to un-removed log files after running eseutil/p repair command on damaged Exchange database
• It may also occur if log file has been deleted by antivirus program. Also if log file is quarantined by such programs, database may fail to mount
• Incorrect usage of eseutil /r three-character logfile base name command may also create the same issue. It particularly happens if logfile base name is incorrectly specified

Solution

• If un-removed log files are the issue after using esuetil/p command, we need to first check database consistency. If it is correct, we can move these log files to some other folder. However if database is reported as damaged, we can try committing all log files to the database. If problem persists, users are required to apply Exchange Server Repair solutions.
• Antivirus program is not recommended to scan Exchange Server directories. So it should be excluded from file level scanning. This can even corrupt the database.
• We need to correctly use eseutil /r command and logfile base name.

Exchange Server Recovery
Third party Exchange Server Repair solutions are applicable if user has no valid backup. Exchange Repair Software can scan damaged Exchange database and extract all user mailboxes.

In Exchange Server database, rollback is an important operation that is useful in removing all the changes. But if you are not doing rollback in proper way then it might be possible that edb file get damage and to recover edb file you need Exchange Server Repair to be performed.

The corruption might cause the Microsoft Exchange Server Information Store Service to stop unexpectedly and shows access violation error messages. If correct Windows NT and Exchange Server debug symbols are installed, then you find some dump entries in the Application Event Log of Exchange Server:

“FramePtr RetAddr Param1 Param2 Param3 Function Name
3f9ceb48 6feaf887 3f9ceb58 133f48b0 00000000 ESE!ErrNDSeek+0xb({…})
3f9ceb6c 6feb0010 10816f40 fffffed4 3f9cebf4 ESE!BTISeekSeparatorKey+0×48
3f9ceb80 6feaf954 3f9cebf4 00000201 10816f40 ESE!ErrBTISelectSplit+0xba
3f9cebc4 6fea45a8 00000001 00000000 10816180 ESE!ErrBTISplit+0xbd
3f9cec84 6fea4fe9 3f9ced34 00000001 00000000 ESE!ErrBTInsert+0×3e8({…}, {…})
3f9ceca0 6feb653e 3f9ced34 00000001 00000000 ESE!ErrDIRInsert+0×27({…}, {…})
10816180 04560e80 1081de80 0fdabad0 1081de80 ESE!ErrRECSeparateLV+0×1c6”

After this behavior, you are not able to access all your important or valuable data. But if you really want to get back all your data, then you have to do Exchange Server Repair to sort out this problem.

When the basic Exchange Server database engine attempts to rollback a creation of the LV (Long Value) tree on database table that is opened with exclusive access, Exchange Server database gets corrupted.

To fix this problem, first you have to prevent this problem from occurring in future and the second one is to repair the corrupted database.

The repair software is the powerful applications that are capable of scanning and repairing corrupted exchange database. These software can recover or repair all your EDB objects such as emails, notes, contact, journal, calendar entries and so forth.

One of the best software is Stellar Phoenix Exchange Repair Software to repair your corrupted edb files. It will repair your edb files created by Exchange Server 2003, 2000, 5.5. This software is very easy to use and also it’s very user friendly. In this software you don’t need any type of technical knowledge. To ensure efficient extraction of your data, selecting powerful and advanced Exchange Server utility software is essential. Exchange Server Repair software is compatible with Windows 2000, 2003 and XP.

Get this Stellar Phoenix Exchange Server Repair software and repair your exchange server.

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