Mounting exchange database without log files

In Exchange server, when an email is delivered, sent, deleted or forwarded, all these changes are written to Exchange database (.EDB) & transaction log files.

A transaction log is a file that records all changes made to the database in sequential manner. It keep track of a start of a transaction, all the changes that has been made, & final commit or roll back of a transaction. Before applying the changes to database, Exchange server apply the changes to log files.

The information stored in transaction logs is generally used for database recovery & database restoration. In case of database crash due to dirty shutdown or some other reasons; recovery of Exchange database is required. With the help of these log files exchange administrator can analyze the occurring error. Exchange administrator may not be able to mount the Exchange database in absence of these log files.

In case of such scenarios you can use Eseutil command of PowerShell to repair the corrupted Exchange database.

How to Mount Exchange Database without Log file:

You may encounter the following error message in the absence of Log files or when your log files got corrupted.

Error code

JET Error

Error description

Error -501 (0xfffffe0b)

JET_errLogFileCorrupt

Log File is Corrupted

Error -514 (0xfffffdfe)

JET_errBadLogVersion

Log file generated with different Exchange Server or version

Error -515 (0xfffffdfd)

JET_errInvalidLogSequence

Any log file from the sequence is missing

Error -533 (0xfffffdeb)

JET_errCheckpointCorrupt

Checkpoint is deleted or corrupt

Syntax of Eseutil Command

Eseutil/p database_name

This command works fine in case of minor corruption in Exchange database but in case of highly corrupted pages it may result in data loss.

Easy way to Mount EDB database without log files (No Data Loss)

Here you can use a third party applications like Exchange Recovery to mount EDB file to Exchange server. These applications provides an easy and quick solution to mount the Exchange database without log file.

Conclusion

In this blog, I have explained an easiest method to mount the EDB file to Exchange server without log files. If you are facing any issue or need further assistance. Feel free to comment, we will try our best to resolve your issues

I am a tech geek working in the field of data recovery and migration. I likes to write technical articles related to Exchange Server