EDB Recovery to Fix Transport Database Corruption

Are you facing fatal errors while accessing your Microsoft Exchange Server 2007 database? Is your EDB (Exchange Server Database) file is inaccessible? The fatal error in Exchange server aborts the application and thus makes it unusable. This behavior of MS Exchange Server renders all your valuable data inaccessible and cause critical data loss situations. In order to get your precious data recovered in such situations, you need to repair and restore the damaged EDB file, using an EDB Recovery solutions.

As an example, MS Exchange Server 2007 Management Pack for Operations Manager supervises the MS Windows Application Event log on systems, which are running MS Exchange Server 2007 and returns the below event:

“Product Name: Exchange
Product Version: 8.0 (Exchange Server 2007)
Event ID: 17003
Event Source: MSExchangeTransport
Alert Type: Critical Error
Description: A Transport database operation has encountered a fatal error. The database may be corrupted. The Microsoft Exchange Transport service is shutting down. Manual database recovery or repair may be required.”

After the above error, Microsoft Exchange Server does not let you access your database. At this point, you have to verify the cause of this problem and perform EDB File Recovery by resolving it.

Cause:

The error message below indicates that specified ESE (Extensible Storage Engine) database is damaged. It is preventing MS Exchange Server services from starting.

- ESE, also called JET Blue, is an ISAM (Indexed Sequential Access Method) data storage technology intended by Microsoft. The ESE is particularly used as a key component of the Microsoft Exchange Server and the Active Directory.

How to Fix ESE Corruption:

You can carry out following things to sort out this issue-

1. 
   
   Delete the defined database and corresponding transaction logs. You must not remove the database if you have significant data in the database.
2. 
   
   Repair the damaged database using Isinteg.exe tool or restore it from backup.

However, if none of the above methods helps you to work around the problem, EDB Recovery Tool is the only option to go for. They carry out in-depth scan of entire EDB file using high-end scanning techniques and restore all database objects such as emails, notes, contacts, tasks, and more.

The software enable you to recover corrupt EDB file in a quick and easy way as they are incorporated with simple and self-descriptive graphical user interface. The integrity of your database is always preserved by these tools.

EDB Recovery Software is the most preferred recover EDB solution to repair and restore EDB files in all cases of corruption. The EDB Recovery is designed for Microsoft Exchange Server 2007, 2003, 2000, and 5.5.

Checksum Errors on Exchange Server Database Pages

A corrupted or damaged Exchange Server database exhibits abrupt behavior while normal database operations. However, you can deduce the root cause of the issue and sometimes, solution to the problem by application log entries. You should restore the corrupted database from the last backup, if is available and valid. In case of database issues, you are recommended to use EDB Recovery Software to recover the damaged database.
For example, consider you use Exchange Server 2003 or Exchange Server 2000. You use Exchange online backup to backup your Information Store database and fail to do so. When you view the application log in Event Viewer, you encounter the below error message:

“Information Store (2240) The database page read from the file "E:\program files\exchsrvr\mdbdata\priv1.edb" at offset 204275712 (0x000000000c2d0000) for 4096 (0x00001000) bytes failed verification due to a page checksum mismatch. The expected checksum was 303571876 (0x121823a4) and the actual checksum was 303571940 (0x121823e4). The read operation will fail with error -1018 (0xfffffc06). If this condition persists then please restore the database from a previous backup.” 

This error is logged with event ID 474.

Cause

Error 1018 indicates JET_errReadVerifyFailure error. It results because of checksum errors on database pages. The prominent reason for this error to occur is Exchange database corruption due to file system errors. If the disk subsystem is suffering from issues, like defective disk drivers, faulty controller or outdated or incompatible firmware, this could result into Exchange database corruption.  

Solution

You can solve these problems by these methods:

1.Try to perform backup using different storage group located on a different server disk. 2.Diagnose and troubleshoot your Exchange Server running system for possible hardware issues 
3.Update your system with the latest firmware and drivers updates available 
4.If a clean data backup is available, restore your database 
5.Perform hard repair of the database using Eseutil /p in case no suitable backup is present 6.Eseutil /p is a destructive repair operation that could delete the corrupted database pages. To prevent the consequences, you should use safe EDB Recovery utilities. 

EDB Recovery Software are powerful tools to examine, repair and restore damaged Exchange databases using efficient scanning algorithms. These tools provide you graphically rich user interface and advanced features that result complete database repair.


Stellar Phoenix Mailbox Exchange Recovery is a fully-competent EDB Recovery Software to systematically repair damaged Exchange databases created with Exchange Server 5.5, 2000 and 2003. It provides safe EDB Repair and extracts all user mailboxes by converting them into Outlook usable .pst files. The tool can recover all email messages, notes, journals, tasks and other objects.

Checksum Errors on Exchange Server Database Pages

A corrupted or damaged Exchange Server database exhibits abrupt behavior while normal database operations. However, you can deduce the root cause of the issue and sometimes, solution to the problem by application log entries. You should restore the corrupted database from the last backup, if is available and valid. In case of database issues, you are recommended to use EDB Recovery Software to repair the damaged database.

For example, consider you use Exchange Server 2003 or Exchange Server 2000. You use Exchange online backup to backup your Information Store database and fail to do so. When you view the application log in Event Viewer, you encounter the below error message:  

“Information Store (2240) The database page read from the file "E:\program files\exchsrvr\mdbdata\priv1.edb" at offset 204275712 (0x000000000c2d0000) for 4096 (0x00001000) bytes failed verification due to a page checksum mismatch. The expected checksum was 303571876 (0x121823a4) and the actual checksum was 303571940 (0x121823e4). The read operation will fail with error -1018 (0xfffffc06). If this condition persists then please restore the database from a previous backup.”

This error is logged with event ID 474.  

Cause

Error 1018 indicates JET_errReadVerifyFailure error.

It results because of checksum errors on database pages. The prominent reason for this error to occur is Exchange database corruption due to file system errors. If the disk subsystem is suffering from issues, like defective disk drivers, faulty controller or outdated or incompatible firmware, this could result into Exchange database corruption.  

Solution

You can solve these problems by these methods:
1.Try to perform backup using different storage group located on a different server disk.
2.Diagnose and troubleshoot your Exchange Server running system for possible hardware issues
3.Update your system with the latest firmware and drivers updates available
4.If a clean data backup is available, restore your database
5.Perform hard repair of the database using Eseutil /p in case no suitable backup is present
6.Eseutil /p is a destructive repair operation that could delete the corrupted database pages.

To prevent the consequences, you should use safe EDB Recovery utilities. EDB Recovery Software are powerful tools to examine, repair and restore damaged Exchange databases using efficient scanning algorithms. These tools provide you graphically rich user interface and advanced features that result complete database repair.

Stellar Phoenix Mailbox Exchange Recovery is a fully-competent EDB Recovery Tool to systematically repair damaged Exchange databases created with Exchange Server 5.5, 2000 and 2003. It provides safe EDB Repair and extracts all user mailboxes by converting them into Outlook usable .pst files. The tool can recover all email messages, notes, journals, tasks and other objects.

Page Checksum Mismatch in EDB File and Recovery

Microsoft Exchange Server uses checksum procedure to confirm for database pages integrity. You can use ESEUTIL utility with /K switch to verify page-level integrity of Information Store databases. If it results errors, one or more of your database pages are corrupted that you need to restore from the available backup. In case no suitable backup is present, you require to use an EDB Recovery Software.

You might come across any of the below symptoms with your Exchange Server: Error “Database page read failed verification because of a -1018 error (page checksum mismatch). This page level error is often caused by driver, firmware, or hardware issues.” Users fail to send or receive email messages You receive -1018 checksum error when you attempt to perform online backups You encounter -1018 checksum mismatch error when you try to defragment the database At client side, Microsoft Outlook is not started Cause Such behavior is usually exhibited when a database page read fails verification. As indicated, this occurs due to mismatch of page checksum. The referenced page stored on Exchange EDB file is corrupted. Note: The error indicates inability to retrieve data from EDB database file, which might also occur due to RAM or firmware issues. Solution You are recommended to follow these suggestions to isolate the given issue: You should run system diagnosis to check for RAM or firmware related concerns. You can deduce the issue if the corruption problem is frequent Try upgrading the firmware and system BIOS to their latest versions available Repair the damaged EDB files using eseutil /P.

You should then execute eseutil /D followed by isinteg -fix If ESEUTIL repair utility fails to fix database corruption, you need to migrate the database from recent backup. However, while any concerns related to restoring from backup, you should Recover EDB file by using third-party special purposed tools. EDB Recovery Software are high-end tools with powerful, yet safe, algorithms to examine, repair and restore the damaged Exchange Server database. These applications are reliable tools that work efficiently and successfully extracts all user mailboxes without harming the actual database contents. Stellar Phoenix Mailbox Exchange Recovery is a comprehensive tool to safely extract all the mailboxes from damaged databases created with Exchange Server 5.5, 2000 and 2003. It is a safe EDB Recovery Tool to Recover EDB and all objects including emails, email properties, tasks, drafts and more.