Exchange Server is a Microsoft messaging & collaboration server. It helps users to send as well as receive electronic emails via computer networks. Just like Outlook, Exchange Server too interoperates with other email applications. It meets the requirement for both small and large enterprises. In short, Exchange is used for the storage of emails, calendar, web-based & mobile information access, contacts and tasks, etc. Exchange Server stores the data in EDB format, the backup of the data in created in BKF format, and the log report is created in Log files.
EDB stands for Extensible Storage Engine. These files are main storage file of database in Exchange Server. It is developed on the individual client-server architecture. Moreover, MS Exchange use this file as the storage engine to access the data. EDB includes components such as emails, attachments, folders, etc. To maintain the work continuity in Exchange server these files are very useful. EDB files are of two types:
However, in some situations the files can be corrupted or damaged due to one or the other factor.
Reasons behind Corruption in EDB Files
The major reasons behind the .edb file corruption are:
Types of EDB file Corruption
There are two different types of corruption in .edb files:
EDB File Corruption Error Messages
Use below mentioned terminology to perform the recovery of .edb files:
Command for log file health – eseutil /ml
Command for Soft Recovery- Eseutil/r
You may encounter this error
“Operation terminated with error -1216 (JET_errAttachedDatabaseMismatch, An outstanding database attachment has been detected at the start or end of recovery, but database is missing or does not match attachment info) after n seconds.”
Method to Run Hard Recovery:
Command for Hard Recovery – eseutil /cc
Run Hard Repair:
Run Offline Defrag
Note: if the public and private information store is huge, then it may take some time.
Note: Before executing any command, please ensure that QUICKEDITMODE is not marked in the properties of command prompt.
Manual approaches are not easy to execute and does not provide guaranteed results. Therefore, to avoid its limitations, users can go a for trouble free solution. Exchange EDB repair tool is one such easy solution. It has been designed to repair both Private and Public folders. The tool supports recovery of removed or deleted emails as well from Exchange EDB email items. Apart from this, the software brings forth so many features such as date filter option, recovery from offline and dismounted EDB files, selective recovery from Exchange mailbox, export the data mailbox to Microsoft Outlook and Live Exchange Server, and many more. It maintains the folder hierarchy for easy access of data. Moreover, the software supports all the editions of Windows Operating system and Exchange Server. The software is very simple to use because of its user-friendly interface. Follow these steps to perform recovery with Exchange EDB file recovery software:
Note: Here, I am exporting the data in PST format.
MS Exchange log files act like record-keepers, which jot down all the activities of the server. It is not possible to view exchange log files normally because of its encrypted language. Moreover, as Exchange Server has many mailboxes on it, a lot happening is going on it in each minute of a day. This results in the lots of entries in transaction log files. These files are generally needed to replay the server into a steady state, in case it does not work properly. Therefore, it is also important to save these files via backups. In addition, if the backup is not created the administrator may get into a problematic situation due to corruption in Exchange log files.
Let us first discuss the reasons behind Exchange log file corruption along with the resolution. After this, we will learn an amazing application to repair/view log files easily.
Reasons behind the Exchange Log Files Corruption
Huge information written into log files makes them huge in size. These increased size of the log files result some issues such as corruption or damage. Therefore, proper maintenance of these files is necessary. Apart from increasing size there are some common reasons behind the corruption like:
Rectify Corruption in Log Files
Users can replay the transaction log files via Soft and Hard Recovery procedure.
Soft Recovery: This is a process to replay log files when the data is re-mounted on server, which is going through unexpected halt. In such, situation Exchange performs the soft recovery via any pending log file by exploring checkpoint file. If this automated process does not work, then recovery can be done using Eseutil command.
ESEUTIL /r enn /L[path to log files] /s[path to checkpoint file] /d[path to database file] /i
Here, r stands for recovery mode
/L to specify the log file path
/d to indicate the path of the database file
Hard Recovery: This process is valid to replay transaction log files via online backup. In case, the option of “Last Backup Set” is enabled then process of recovery will be automatic. Unlike, soft recovery process it does not need checkpoint file, if needed to restore.env file for the recovery of database. In case, Last Backup Set is not enabled, users need to perform the recovery process manually via Eseutil command. This is the syntax to perform hard recovery:
C: \Program Files\Exchsrvr\bin>eseutil /cc “C:\Temp\First Storage Group”
Users can read Exchange transaction log files with the help of this manual way by following some simple steps:
As, we have discussed above these files are also prone to corruption. Apart from this, it is impossible to read them. Therefore, in such situation it is recommended to use a third party utility. Exchange Log Analyzer tool is the best-suited application for this. Using this utility, users can read Exchange log files and view them. The software does not have any EDB file size limitation; it exports the scan data into various file formats, and repairs the corrupted Exchange log files. Moreover, users can perform data wise filter options and this tool is compatible with all Exchange server versions. Perform these following steps to view and read log files via this utility:
With these easy steps, the process will be completed.
Exchange BKF is most important thing for users or organizations. The main motive of BKF file is to make sure that the data of Exchange remains secure. This file consists of the copy of essential data, which users backed up earlier. Basically, it contains three types of BKF files EDB, STM, & LOG files. EDB is the main data storage file of Exchange, STM is Streaming Media File, and LOG files contain the transaction log reports. At the time of crash in Exchange Server, the data becomes damaged or corrupted and it can be restored from BKF files. However, the BKF files are also prone to corruption. Let us discuss some reasons behind the corruption of these files, error messages a user may get, and method to resolve it.
Factors Responsible Behind BKF Files Corruption
Different Types of Error Messages
Methods to Repair Corrupt Microsoft Exchange Backup File
The manual solution is hard to find for the recovery of Exchange BKF files. Therefore, without wasting the time searching for manual procedure, users can go for an alternative solution. Due the availability of several solutions in the online market, users can get confuse. Moreover, It is important to choose a relevant application to avoid any other problems. This is the reason that we have come up with a most popular solution to repair Exchange BKF files.
This is the best Exchange BKF repair tool to extract mailboxes from corrupt Microsoft Exchange backup file (.bkf). This Exchange Backup restore software helps you to recover all the important mailbox items like emails, contacts, calendar, notes, journals, sent items etc. The tool can extract Exchange EDB, STM & LOG File from BKF File.
Recover Exchange BKF File with Following Steps
Let us see the systematic guide of Exchange BKF Recovery tool to repair corrupt or damaged BKF file.
Note: Exchange Server environment is not required to repair Exchange BKF file.