1. "Common Microsoft Exchange Server Blunders & Solutions"

2. Table of Contents About Microsoft Exchange. Common MS Exchange Blunders. Dirty Shutdown Error. Corrupt EDB Mailbox Files. Checksum Error. Recovery Methods. Conclusion

3. Microsoft Exchange Server Microsoft Exchange Server is accounted as the most successful, secure mailing server and a powerful organizer developed by Microsoft. It is basically server side software which is used to manage a workgroup, enterprise or home users mailbox. It is not only an on premise software but with the help of Outlook Web Access synchronization; clients could manage their day to day emails, tasks and messages easily anywhere. Exchange Server is extensively used by Enterprise users as the server allows secure mailing, maintains a physically accessible database and personal mailbox management.

4. Exchange Mishap Scenarios : Dirty Shutdown Error. Firmware malfunction. Corrupt EDB Mailbox Files. Database Page Read Failure/Checksum Error. Bulked Database Storage. Sloppy Exchange Administrator Work. Malicious software attacks.

5. Dirty Shutdown Dirty Shutdown is a state which occurs only when the information store doesnt get closed properly.This might be due to power failure, connection failure or any other disaster that leads towards this issue. Dirty shutdown cannot be considered as sign of damaged database, instead it is just that the Exchange database was not closed properly and leads towards Exchange data file EDB and STM Corruption. How do you know that Dirty Shutdown state has occurred? Use ESEUTIl to detect data-integrity, repair corrupt file portions and helps to defragment the database, but only when the database is offline.

6. Determining Dirty Shutdown State Use ESEUTIl /mh to determine the log file and checks that the database is in the clean state or not (could be accessed using CMD->C:Program FilesExchSrvrBin and then type in eseutil /ml )

7. Solution? With the help of /mh utility we determined that Dirty Shutdown state is the cause of error or not.The next step is to repair the damaged data using repair and then defragmentation utility. ESEUTIL /r help recover from Dirty shutdown error, by scanning the bad sec and then fixes those errors.

8. Corrupt EDB Mailbox Files Malfunctions such as hardware failure, System/Server failure, dirty shutdown or any other type of disaster causes the mailbox files such as priv1.edb, pub.edb to get corrupted. This issue results in inaccessibility to the mailbox data due to corrupt mailbox file

9. Recovering from the issue : Fixing Corrupt Mailbox requires users discretion as human error could lead to permanent loss of data. Utilities such as ESEUTIL / ISINTEG could be used to perform local diagnosis, repair and defragmentation.These procedures are helpful in case of normal level of corruption, but in case of high corruption trusted third party tools should be preferred. For complete walkthrough steps along with explanation visit here: www.exchange-server-guide.blogspot.com

10. Checksum Error Exchange databases on page level are just set of numbered pages where data is read and written one at time .Checksum tests are performed for each page to check for moderations and alterations .Now when we face a checksum mismatch error this indicates that : The page details arent getting matched as they were supposed to be. The page number doesnt match with the actual page location. Hardware or firmware issues trigger checksum errors.

11. Getting Rid off Checksum Error Restore Data from a hot backup:A recent backup of the Exchange database would restore the data back to its original location, hence eliminating an error. Use ESEUTIL/ISINTEG commands to repair, debug and defragment EDB Files.

12. Is it Possible to Recover the Data without facing Hassles? Yes it is!With SysTools Exchange Recovery Software, you can retrieve mailbox data from dismounted offline EDB files. The software guarantees 100% precise data extraction and provides detailed views for further lookup. Focusing on specific data extraction , it is single handedly capable of recovering: Storage Groups Public and Private Folders. CompletelyWiped EDB Database and many more

13. Key features of The SysTools Exchange Recovery Software Performs: Exchange EDB Mailbox Data Recovery. Selective Public/Private Folder Recovery. Precise Storage Group Recovery. Permanently Deleted EDB Mailbox Recovery. Selective Mailbox Export. Recovery from Inactive Server.

14. Provides: Flexible Options to save Recovered EDB Files as PST, EML, MSG. Technical Details for Advanced Users. Options to cleave large PST Files. Maintains Proper Folder Hierarchy. CompleteAttachment Retrieval along with flexible preview options. GeneratesActivity Report.

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16. ThankYou