MS Exchange Repair Tool to repair corrupted or damaged edb file

In Microsoft Exchange Server, public folders have great importance. It not only contains user data, but also contains critical system information, which is required for smooth operation of Exchange Server environment. For effective management and better performance of public folders, the replication process is carried out. There are two types of replication is possible- Hierarchy replication or Content replication. In some cases, replicating the public folders between Microsoft Exchange Server could sometimes be troublesome and thus cause several inconsistencies in the database and make it inaccessible. This behavior of MS Exchange Server might cause serious data loss situations, which require Exchange Server Repair using appropriate tools.

In a practical scenario, when a computer system that is running MS Exchange Server 2003 sends the public folder replication, email scanning might occur. You might also come across the corruption of MDB (Messaging Database) at the same time. At this point, you may receive the below given error message:

“Multiple edits have been made. The conflicting edits have been attached to the conflict message.”

At this point, the Exchange Server public folders might become inconsistent and inaccessible. It causes critical database corruption and data loss circumstances. You need to find out that cause of this issue and go for Exchange Repair to sort out this problem.

Root of the problem

This issue might take place when a database transaction is inappropriately written due to an error, which causes an unbalanced Exchange Server transaction state. The unbalanced state of transaction allows virus scanning to be carried out on the outbound replication emails if the virus scanning is enabled. Transaction’s unbalanced state might also result into the database corruption.

Resolution

In order to come across these situations, Microsoft has provided a hot fix that can be downloaded from Microsoft’s website. You should always check the database integrity after installing the hot fix using Isinteg.exe utility. This solution can sort out this problem and it will not occur in future, but it can not repair the damaged database. In order to repair and restore corrupted database, Exchange Recovery is required.

This is potential through powerful and advanced third party applications, known as Exchange Repair tools. These software carry out extensive scan of corrupted Exchange Server database and restore all of its objects intact. They come equipped with interactive and simple graphical user interface and thus do not demand sound and prior technical skills.

Stellar Phoenix Mailbox Exchange Recovery is the most effective and advanced MS Exchange Repair tool to ensure successful recovery in most of the database corruption scenarios. It repairs EDB file of Exchange Server 2003, 2000 and 5.5. This software is compatible with Windows 2003, XP and 2000.

Microsoft Exchange Server users transaction-based and fault-tolerant database for storing emails and directory information before this is applied to database. When a power failure or any other abnormal server failure takes place, the Exchange Server uses transaction log files for reconstructing data, which is already taken by Exchange Server but not yet written to database. But in some situations, the database failure might become very critical and can not be resolved in normal ways. At this point, your valuable data become inaccessible and data loss situations occur that lead you to Exchange Repair.

Exchange Server Database (EDB) Components

The EDB file is made up of server components, based on the standard database technique. Entire system bank on an embedded database engine, which lays out structure of disk of the Exchange Server and organizes memory. Major components of EDB file are as give below:

a) Information Store: This is the key component of Exchange Server. It has two separate database: private information store and public information store. It works with MAPI (Messaging Application Programming Interface) and database engine to make sure that all operations are stored on server hard drive.

b) JET Database Engine: Exchange databases are based upon JET format that uses log files to maintain and track information. It is a 32-bit multi-threaded database engine, which combines performance and speed with other powerful features for improving transaction-based processing abilities.

Exchange Server Database Corruption

Like other database, EDB might also experience corruption at some point, which needs the system to try to get back to consistent state. The corruption could occur due to virus infection, improper system shutdown, application malfunction, user errors and missing database objects. There are two main types of database corruption, which require Exchange Server Repair to be resolved:

(i) Logical Corruption: It occurs due to damaged or missing database objects such as database engine failure and Information Store corruption. This type of corruption could also occur at application level in folders, mailboxes, messages and attachments.

(ii) Physical Corruption: This type of corruption occurs when entire database gets damaged on the hard drive. It is very easy to identify.

In order to overcome the corruption situations, Exchange Server provides two repair tools- Eseutil and Isinteg. These utilities allow you to carry out Exchange Server Recovery by repairing and restoring corrupt database in some situations, but these programs does not work in case of severe database damage.

In such circumstances, Exchange Server Repair applications come for your help to scan the damaged database thoroughly and extract all of the mailboxes and data from it. These tools are quite easy and safe to use.

Stellar Phoenix Mailbox Exchange Recovery is the most advanced and powerful Exchange Repair application to ensure absolute recovery of your inaccessible data from EDB file of Exchange Server 2003, 2000 and 5.5. This software is designed for Microsoft Windows 2003, XP and 2000.

Backup is the important and easiest prevention step to safeguard your data on Exchange Server. In case of any mishap, you can easily restore your data from recent backup. But in some situations, while backing up your data, you might come across a number of error messages and the backup process fails. This behavior generally occurs due to corruption to the database and it renders all of your critical emails, notes, contacts and other data inaccessible. It results into data loss and require Exchange Repair to be sorted out.

In a practical scenario, when you try to backup Exchange Server 2003 database, the following error occurs:

“WARNING: Portions of cannot be read. The backed up
data is corrupt or incomplete.”

At the same time, a number of Events are logged into Exchange Server Application Event Log that may sound like the following one:

Event Type: Error
Event Source: ESE
Event Category: Logging/Recovery
Event ID: 478
Date: 14/09/2005
Time: 6:48:56 AM
User: N/A
Computer: MAIL
Description:
Information Store (2692) The streaming page read from the file “C:\Program
Files\Exchsrvr\mdbdata\priv1.stm” at offset 1245716480 (0×000000004a402000)
for 4096 (0×00001000) bytes failed verification due to a page checksum
mismatch. The expected checksum was 2777780870 (0xa5919286) and the actual
checksum was 2814150562 (0xa7bc87a2). The read operation will fail with
error -613 (0xfffffd9b). If this condition persists then please restore the
database from a previous backup.

Root of the issue

You may come across this behavior of Exchange Server due to any of the following reasons:

1. The Exchange Server Database (EDB) is corrupted and it can not be read

2. The STM (Streaming Internet Content File) is damaged

In both of these situations, the Exchange Server database can not be accessed and you need to go for Exchange Recovery by working around this problem.

Resolution

You can sort out this problem by repairing and restoring corrupted EDB file. It is best possible with the help of effective third party tools, known as Exchange Repair software. These programs are capable of thoroughly scanning damaged EDB file and extracting all of its mailboxes and their objects such as emails, contacts, notes, tasks, journal, calendar, personal folders and more.

Exchange Repair applications have self-descriptive and interactive graphical user interface that let you carry out easy and quick recovery without demanding sound and prior technical knowledge. Due to read-only and non-destructive demeanor, they do not change original contents of the database.

Stellar Phoenix Mailbox Exchange Repair is the most advanced tool for MS Exchange Repair and restores EDB files created using Exchange Server 2003, 2000 and 5.5. This Exchange server repair software is designed for Microsoft Windows 2003, XP and 2000. It also recovers email addresses from Active Directory Store.