How to recover corrupted EDB files in MS Exchange Server

The Exchange Information Store is a very important component of MS Exchange Server as it contains both mailbox store and public folder store data. All the data of the information store is contained in the EDB files. This means that it is all the more important to know its components, so that in the event of data loss, you know what to do and which kind of exchange recovery to implement. There are certain in-built methods that you can use to perform EDB repair. If these methods are not able to repair EDB file, then you should use a third-party EDB repair software to do so.

The following symptoms indicate that the information store may be corrupted.

  • Unable to start the Microsoft Exchange Information Store service.
  • Unable to stop the Information Store service and other dependant services
  • The Information Store service does not respond while the CPU usage level shows 100 percent
  • E-mails cannot be retrieved or sent by the client.
  • Error messages like “unable to mount the Mailbox store….” (When an attempt is made to mount the mailbox), or “Internal processing error….” (When an attempt is made to mount the database) are displayed.

To resolve this situation, there are following methods that you can use:

  • Restore from backup: You should try to restore the database with its online backup. However, you must ensure that the backup is clean and updated before this corruption occurred.
  • Run ESEUTIL utility: If you the backup is not clean or not updated, then you should use the ESEUTIL tool. It is able to verify the structure of database tables and perform offline defragmentation on the EDB database.
  • Run ISINTEG utility: After performing the ESEUTIL utility, you should use the ISINTEG tool. It rebuilds the EDB information store after the restoration and fixes the errors, it finds, in the information store.

When the backup is not updated or any of the it aforementioned methods fails to restore the desired information, you will need to use a third-party EDB repair software to repair EDB file. Such read-only tools are able to repair EDB files using fast yet sophisticated scanning algorithms.

Stellar Phoenix Exchange Recovery is an EDB file repair software helpful to recover all the corrupted .edb files. The software supports Microsoft Exchange Server 2007, 2003, 2000, and 5.5. This EDB repair tool is able to extract the mailboxes into separate PST files according to the specific user.

Repairing EDB database file in MS Exchange 2000 Server when you are unable to mount public store

In the MS Exchange Server systems, the public folders are well structured databases, which enable you to collect, organize, and share the information with your colleagues in your organization. These public folders are mounted when you start Exchange server and can be replicated between different versions of Exchange servers. However, when you are unable to mount the public store then very often corruption in the EDB file is the major reason behind this. You should try to find out the reason for EDB corruption and try to repair EDB file. If none of the methods work, then the only way-out is to use a third-party EDB repair software to do the needful.

Assume a practical scenario in which you are using MS Exchange 2000 Server Edition. You are unable to mount the Exchange public folder store as the following error message is displayed:

“An internal processing error has occurred. Try restarting the Exchange System Manager or the Microsoft Exchange Information Store service, or both.

ID no: c1041724

Exchange System Manager”

When you check the Application event log, you find the following event ID:

“Source: MSExchangeIS Public

Event ID: 1133

Type: Information

Computer: Exchange

Allocating message database resources for database “First Storage Group\Public Information Store (Exchange)”. For more information, click http://search.support.microsoft.com/search/?adv=1. ”

Cause:

There could be different causes for this generic error. Some of them are:

  • The first Exchange Server was deleted, which caused this problem. Because of this, the respective public folder store is transferred to the ‘LostAndFound’ container.
  • It may also be possible that the old public store and/or the whole server is moved to the ‘LostAndFoundConfig’ container.

Resolution:

The problem can be solved using the following methods:

  • You should use the ‘Active Directory Users and Computers’ feature to delete the ExchangeOld folder store from the ‘LostAndFound’ container.
  • You should use the ‘ADSI Edit’ feature to remove the ExchangeOld folder store from the ‘LostAndFound’ container.

Note: When you perform either of the aforementioned methods, ensure that the Default Public Store is referring to the existing public folder store.

However, if the problem is persisting even after performing these methods then it means the EDB file is damaged, which can be repaired using a third-party EDB repair software. Such read-only EDB recovery tools are extremely safe to use that do not overwrite the existing EDB database file during the recovery.

One of the most efficient EDB repair tool is Stellar Phoenix Exchange Server Recovery, which repairs EDB database file meant for MS Exchange Server 5.5, 2000, 2003, and 2007. With the capability of extracting individual PST files for every user mailbox from EBD file, this EDB repair software is compatible with Windows 7, Vista, Server 2003, XP, and 2000.

New version of Stellar Phoenix Mailbox Exchange Recovery now offers support for Exchange 2010

Stellar Information Systems Ltd,<01-09-10>Gurgaon, a leading name in data recovery industry, today declares the launch of Stellar Phoenix Mailbox Exchange Recovery 4.0, a more robust software which repairs corrupt EDB files of Microsoft Exchange Server 2010 in addition to 5.5, 2000, 2003 and 2007 versions.

Developed specifically to address the needs of affected MS Exchange Server administrators, this powerful Exchange recovery application offers to repair corrupt or inaccessible mailboxes and recovers them as individual PSTs. The newly-revived software now incorporates the capability of recovering selective mailboxes.

MS Exchange Server administrators can bank upon this application to derive accurate results in all failure scenarios including corrupt database header, improper database backups, hardware issues, dirty shutdown and others. The free Demo version of the EDB recovery software now has the provision of providing preview of the recoverable mailboxes.

“Version 4.0 of Stellar Phoenix Mailbox Exchange Recovery software comprises unparalleled recovery capabilities with added support for MS Exchange Server 2010. The Mailbox Exchange Recovery upgrade provides tremendous power in the hands of Exchange database administrators with its ability to recover mailboxes in almost all EDB database corruption instances, “ said Sunil Chandna, CEO, Stellar Information Systems Ltd.

“We are sure that the upgrade launch of the EDB recovery software will meet the growing needs and challenges that the MS Exchange database administrators are facing day to day” he concluded.

Key Features Stellar Phoenix MailBox Exchange Recovery 4.0

  • Supports Microsoft Exchange 2010, 2007, 2003, 2000 and 5.5
  • Repairs and recovers corrupt EDB databases
  • Allows selective recovery of mailboxes
  • Recovery of Unicode-formatted EDB files also supported
  • Recovers deleted mailboxes
  • User-friendly and safe application
  • Demo version provides preview of mailboxes
  • Compatible with Windows 2000/XP/2003/Vista/Windows 7

About Pricing and Availability

Stellar Phoenix Mailbox Exchange Recovery 4.0 is available in three license options including Administrator, Technician and Academic. The Administrator license is available both in CD+Download versions and is priced at $599 plus service and handling charges extra.

About Stellar Information

Stellar Information Systems Limited (established since 1993) is the leading creators and providers of advanced data recovery software and data recovery services for more than 17 years. Holding direct presence in USA, Europe and Asia, Stellar is a name that is trusted for finest solutions to recover lost and inaccessible data.

For more information on the product refer to the official website www.stellarinfo.com and the product micro-site www.ms-exchange-server-recovery.com.

Contact Information :
For more information and product purchase options:

Call : 1-877-778-6083 (TOLL FREE)
Mailto: orders@stellarinfo.com.
Web Address- http://www.stellarinfo.com

Restoring corrupt EDB file in MS Exchange Server 2007

MS Exchange Server is the server side of the client-server, collaborative application from Microsoft. It ably provides standard email features such as emails, contacts, notes, tasks, calendar items, etc. In addition, it provides you the option to access Exchange Server mobile devices and various web-based browsers. It may be notable that the server information is stored in an EDB (Exchange Information Store Database) file. At times the EDB file may get corrupt due to which you are unable to mount the Exchange Server database. These situations may occur due to various reasons such as abruptly exiting the Exchange Server, virus infections, corruption in the database header, hardware issues, etc. Such cases can be handled by using certain in-built methods. If you are not able to resolve the problem, then you should use an EDB Repair Software to repair the corrupted EDB file.

Consider a scenario wherein you have Microsoft Exchange Server 2007 running in your organization. When you try to mount the database that is running on the Server, you are unable to do so. An error message is displayed, that is:

“An internal processing error has occurred. Try restarting the Exchange System Manager or the Microsoft Exchange Information Store service, or both.
ID no: c1041724
Exchange System Manager”

Cause:
There could be the following causes for the aforementioned error message:
1. The eseutil /p command was executed on corrupted databases and the log files were not removed during the process.
2. The eseutil command was executed for an incorrect logfile base as shown in the following example:
eseutil /r three-character logfile base name

Resolution:
To resolve this problematic situation, you should perform the following methods for each of the mentioned cause:
1. Resolution for Cause 1: To do this, you should ensure two things:

A) Whether the eseutil /p command was run: This can be done by using the following command in the Command Prompt:
“c:\program files\exchsrvr\bin\eseutil /mh “c:\program files\exchsrvr\mdbdata\name of Exchange database.edb”
i.If the repair count is 1, then this command was run on this database.
B) If the database is in a clean and consistent state: To do this, you should perform the consistency check on the databases. If the database is consistent, then you should move the log files to a backup folder and then mount the databases.

2. Resolution for Cause 2: You should provide the correct parameter to run the eseutil command. For example,
“eseutil /r e00”

Once you perform the mentioned methods, try to mount the database. You will that the problem is now rectified. However, if it is not so then you should use a third-party Exchange Database Repair to extract the corrupted EDB files. Such .EDB repair tools are read-only in nature and are able to convert the EDB files to independent PST files using fast yet sophisticated scanning algorithms.

Stellar Phoenix Exchange Server Recovery is a software that performs Exchange Recovery of corrupted EDB files. It is able to perform repair edb by converting the Exchange mailboxes into equivalent PSTs for each user. This EDB Repair Tool is designed to repair & recover the mailboxes created in MS Exchange Server 5.5, 2000, 2003, and 20007. It is compatible with Windows 7, Vista, Server 2003, XP, and 2000.

Unmountable Exchange Server Logs event IDs 9175, 486, 455, 413, and 5

Microsoft Exchange Server database (.edb file) becomes unmountable due to various reasons like deletion of Exchange log files, anti-virus scanning, or its corruption. An unmountable Exchange database displays an error message that does not allow the user access the data saved in the database. To bring the corrupted database in a mountable state, you can try running the eseutil/p command. However, if the above command fails to repair the database, then you will need to restore database from an up-to-date backup. But in case of no backup or incomplete or corrupted backup, you will need to opt for an effective EDB Repair application.

Consider the below error message that appears when you attempt to mount Microsoft Exchange Server database:

“An internal processing error has occurred. Try restarting the Exchange System Manager or the Microsoft Exchange Information Store service, or both.
ID no: c1041724
Exchange System Manager”

On viewing the application logs, you view five event ids (9175, 486, 455, 413, and 5) along with their description. After the above error message appears, your database becomes unmountable, rendering to inaccessibility of all its stored data.

Cause:

The above error message appears because of the following reasons:

1. Exchange Server Log file contains an invalid signature.
2. Your anti-virus software erases or quarantines MS Exchange Server Log file.
3. Executing eseutil/p on damaged Exchange databases without deleting the log files.
4. Running “eseutil /r three-character logfile base name” command with wrong log file base name.
5. Corruption of Exchange Server database.

Resolution:

To resolve the above error message and successfully mount the database, you will need to follow the below steps:

1. Recover Exchange Server Log file from quarantine folder in the anti-virus program.
2. Run eseutil/p to repair corrupted database.
3. In case, the repair utility fails, then restore the database from a valid backup.
4. However, with backup file inaccessible or corrupt, use a third-party EDB Repair Tool.

An .EDB Repair application uses advanced repair techniques to repair logically damaged Exchange Server database. The tool can be used by any technical user who has no prior database repair experience.

EDB Repair Tool is a secure, yet advanced Repair EDB utility that repairs all corrupted databases created in MS Exchange Server 5.5, 2000, 2003, and 2007. The software is user-friendly and easy-to-understand. It can be installed on Windows 7, Vista, XP, 2003, and 2000.

Tips to Resolve Event ID 515

The data saved in MS Exchange Server database is divided into various pages, each having its own logical page number. Corruption in these pages primarily results in invalid page checksum or incorrect page number, which further results in change of sequence of pages. After the above situation occurs, the data saved in the database becomes inaccessible. In most of these situations, an Exchange user encounters an error message. To get past this error message, a user can either restore the database from a valid backup or repair the database using Eseutil or Isinteg utilities. However, in situations where no backup exists and these utilities fail to repair the database, you need to use a commercial EDB Repair application.

To elaborate the above scenario, consider a real-time case wherein you encounter the below error message while trying to access the database:

“-1018 JET_errReadVerifyFailure”

On viewing the event log, you get the below event ID 515 stating:

“%1 (%2) %3 Database %4: Page %5 failed verification due to a flush-order dependency mismatch. This page should have flushed before page %6, but the latter page has instead flushed first. Recovery/restore will fail with error %7. If this condition persists then please restore the database from a previous backup. This problem is likely due to faulty hardware “losing” one or more flushes on one or both of these pages sometime in the past. Please contact your hardware vendor for further assistance diagnosing the problem. ”

After the above error message flashes on your screen, the database can not be opened. Additionally, the same error message appears every time an Exchange user tries to access the database.

Resolution:

To resolve the above file-level corruption error, you need to:

1. Use an adequate database backup to perform restore
2. Use Eseutil or Isinteg utilities to repair database
3. Use Exchange Server Disaster Recovery Analyzer Tool to mount the database.
4. In case where all the above measures fail to resolve the problem and the database remains inaccessible, you need to search for a third-party .EDB Repair application. Such EDB Repair Tool use powerful scanning methods to repair and restore logically damaged MS Exchange database.

.EDB Repair Software is a secure and reliable application that repairs logical databases created in Exchange Server 5.5, 2000, 2003, and 2007. Supported by Windows 7, Vista, XP, 2003, and 2000, the non destructive Repair EDB utility stores recovered mailboxes in .pst file format.

Exchange Database Index Corruption Results in Event 9519( 0xfffffa84)

The key construct of an Exchange database file, EDB, is B-trees. Similar to all other B-trees, these structures have hierarchical pages and indexes to allow fast and efficient search. An Exchange Server database show abrupt symptoms, when these indexes get corrupt or are missing. This can occur due to numerous reasons and will make you resort to EDB Repair steps.

While Exchange database indexes are corrupted or missing, the MS Exchange database troubleshooter tool can encounter several entries with event ID 9519 having error code 0xfffffa84 logging in the application log. Due to this, Exchange Server users might experience problems while accessing or mounting the database.

This problem is observed in MS Exchange Server 2003, 2003 or 2007.

Cause

Error 0xfffffa84 of event ID 9519 is logged, if database index corruption is when you:

  1. Run database repair command- eseutil /p

  2. Apply MS Windows service pack and an index cleanup process starts. This also prohibits mounting of the Information store databases and results in events 611 and 609.

Solution

To troubleshoot the given problem:

  1. You need to install the hotfix provided by Microsoft to fix index loss problem caused due to eseutil /p utility.

  2. If you experience the above issue after installing Windows service backup, the most suitable option is to restore from last available backup. In case, you do not have any valid backup, you need to perform offline defragmentation using eseutil /d command.

  3. You can alternatively repair the corrupted Exchange Server database files and convert the mailboxes to usable *.pst file using third-party EDB Repair Software.

EDB Repair software employ powerful set of procedures to extract mailbox data from corrupted Exchange database file. Built with interactive designs, these Exchange Repair software are simple to operate. Also, these software are easily available and can be directly downloaded from their website without any risk.

EDB Repair Tool is a comprehensive repair edb utility that repairs corrupted Exchange EDB files and restores mailboxes in *.pst files. This EDB Repair Software restore e-mails, notes, calendars, and other items, while also keeping the original database intact. The tool supports MS Exchange Server 2007, 2003, 2000, and 5.5.

Resolving ‘Logs could not be interpreted’ Error in Exchange Server

Exchange Server transaction logs are stored on Exchange computer hard drive and are crucial for the working of database (*.edb) file. When you start any Exchange Server, ESE (Extensible Storage Engine) checks the database for consistency. This information is revealed by a specific flag in the database header that shows database status as dirty or clean. The dirty database status indicates that there are some uncommitted transactions that need to be replayed. Exchange tries to replay them at the time of mount, but may fail if cannot read them. The reason can be corruption of log files. Such situations can force you to use an EDB Repair Software.

To comprehend these potential problems, consider you use Exchange Server 2007. You experience an unexpected crash (Dirty database shutdown). The next time when you try to mount the database, it gives the below error message:

-1852 0xFFFFF8C4 JET_errLogCorrupted

Logs could not be interpreted 4294965444

The related event ID is 9513. You can observe the same error when restoring the database from backup.

Cause

Event 9513 in Exchange Server 2007 and the above error suggest that the Information Store Service, which is using ESE, cannot read the transaction log files because they are corrupt. As a result, when you try to mount the database after dirty database shutdown or attempt to restore from backup, ESE fails to replay the log files and also to bring the database to a consistent state.

Solution

Following are few concrete solutions that you can apply to solve the depicted issue:

  1. Check the application event log for more ESE events. This can help you to find the specific reasons and solutions to the existing problem.

  2. Try to duplicate the behavior- mounting the database or restoring from backup.

  3. Try to restore the database while excluding the corrupted log files and its sequence. But this operation will cause data loss

  4. Run eseutil /p command. Keep in mind that this is a hard repair command and is likely to delete the corrupted and unreadable pages

  5. Use a third-party EDB Repair utility. An EDB Repair Software can analyze the corrupted database and extract the lost data using powerful, yet safe, scanning algorithms.

EDB Repair Tool is an efficient .EDB Repair product that scans corrupted Exchange database and extracts the mailboxes in readable PST files. The software supports Exchange Server 2007, 2003, 2000, and 5.5. With an interactive, user-friendly design, the software is easy to operate. The tool is compatible with Windows 7, Vista, XP, 2003, and 2000.

Microsoft Office 2010

How to Solve Event 412 in Exchange Server?

Most of the Exchange database problems (including corruption) occur because the administrator continues to use the very old hardware without any refresh. Thus, it is suggested to keep a timely check through application log and related information. Once the EDB database corruption is confirmed, the administrator can either restore from a good backup or select an EDB Repair option.

To comprehend such situations, let us consider a problem when you cannot mount the Exchange database. You observe that all Exchange services run without any error, but when you try to mount the database, it reports an error as below:

Event Type: Error

Event Source: ESE

Event Category: Logging/Recovery

Event ID: 412

Date: 7/3/2008

Time: 1:40:37 PM

User: N/A

Computer: SMTPBRMDBALEX2

Description:

Information Store (4948) e53f288d-df1b-47ba-9c3b-901e530848a5: Unable to read the header of logfile E:\exchsrvr\mdbdata\E003C9F3.log. Error -530.

The error indicates that it cannot read the logfile header.

Cause

Error -530 occurs specifically due to signature mismatching of log files. The log file signature makes sure that Exchange may replay a correct set of log files. Each database header includes this signature information of the current log file. In case these values fail to match, error -530 occurs indicating the same.

Solution

To solve the existing -530 error issue, you need to implement solutions like:

  1. Restore from the last Information Store backup. Rename the corrupted EDB and STM database and create new databases to restore lost data from backup.

  2. Open the command prompt and navigate to the Exchange Server directory (usually, C:\Program Files\Exchsrvr\BIN). Next, run Eseutil /P for the corrupted database.

The command causes corrupted pages to delete and creates unused space. Thus, you need to run Eseutil /D command to defragment the database and then run isinteg -fix repeatedly until you receive no errors or get the same errors after two times.

After running the hard repair through Eseutil /P command, the database may not be stable as data loss is likely. Thus, it is recommended to either move the mailboxes to a new database or run a third-party EDB Repair Software instead of performing the hard repair operation. The EDB Repair tools are exclusively built products designed to scan and repair the corrupted Exchange databases.

EDB Repair Tool is a professional utility that repairs the corrupted EDB database and provides selective mailbox recovery option as *.pst files. The EDB Repair Software has an interactive design that makes it easy to operate. The tool supports Exchange Server 5.5, 2000, 2003, and 2007.

How to Solve ‘Database could not be upgraded to version 3.2′ Exchange Server Error?

Microsoft Exchange Server users often upgrade the existing application version to achieve better performance, speed, and features. Since the process directly interacts with the database, you may sometimes observe the process failing because of database corruption, however, there may be other reasons as well. The database may fail to mount and access. If a valid backup is available, you can recover from such situations by restoring from it, otherwise, it is suggested to use EDB Repair tools to repair the database.

For instance, consider a situation when you use Exchange Server 5.5 and upgrade it to Exchange Server 2000. After this, when you try to mount the Private store of Exchange, it fails and gives an error message, similar to below:

Database “First Storage Group\Private Information Store (NTSRV01)” could not be upgraded to version 3.2. Error 0xfffff9bb.”

This error is associated with event ID 1187 in application event log of Exchange Server.

Cause

The mentioned error indicates that the Setup program has been unable to upgrade the Exchange database in question. It cannot upgrade the database to the specified version. This may occur if:

  1. The database in effect is not included in upgrade sequence and is incompatible with the current Microsoft Exchange version.
  2. The database is corrupt.

Solution

You should first analyze the error text and try these solutions to recover from this problem:

  1. Make sure that the running MS Exchange version is compatible with that of database you are trying to mount. If not, you should try to mount it on a different server installed with required Exchange version.
  2. To check if the database is actually corrupted, you should examine the application log for associated events. If it is, restore the database from backup or run eseutil repair utilities. For safe database repair, you are suggested to use third-party Exchange Repair software.
  3. Sometimes, the described error may result because of failed upgrade, so you should try to upgrade it again.

The EDB Repair Software are commercial products designed to scan and repair corrupted Exchange databases. These utilities provide an interactive interface and are safe to use.

Stellar Phoenix Mailbox Exchange Recovery is a safe and powerful tool that repairs and restores corrupted Exchange database and extracts all mailboxes in individual *.pst files. The advanced Repair EDB utility supports Exchange Server 5.5, 2000, and 2003. The tool is compatible with Windows 7, Vista, XP, 2003, and 2000.
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