The core repository of data for Exchange Server is its Information Store service, which is consisted of both public folder and mailbox store data. The store service basically implements the Exchange Server store. If Microsoft Exchange Information Store Service (MSExchangeIS) does not start, one of the top reasons is that its database(s) are corrupted. Among other reasons, this behavior primarily occurs as an after-effect of abnormal shutdown of Information Store. At this point, you should perform soft recovery or restore the database from a previous online backup. If this doesn’t work, it is suggested to use EDB Repair tools instead of hard recovery as it can cause data loss.

To exemplify such MSExchangeIS scenarios, consider you try to start the Information Store service in your Exchange Server, but fail to do so. When you view the Event Log with MSExchangeIS as the source, you find events 1120 and 5000 recorded as the failure entries. These errors show that the Exchange databases are in inconsistent state.

Cause

These errors occur when the following conditions are true:

You perform Eseutil.exe hard recovery operation for Priv.edb file to fix its inconsistency errors that occurred due to unexpected shutdown of Information Store.

The earlier transaction log files don’t exit and are deleted

No hard recovery is performed for Pub.edb file

As a result of the above sequence of steps, Priv.edb is consistent, but Pub.edb is still inconsistent due to the absence of transaction log files.

Solution

To solve the described issue, you can use any of the below methods:

Remove the Pub.edb file provided it contains no required data. Make sure you don’t delete Edb.log file that is required by Priv.edb

Execute hard recovery for Pub.edb file using eseutil /p command

Use a third-party EDB Repair Tool to repair it

EDB Repair software provide safe recovery for corrupted or damaged Exchange .edb files. These are feature-rich applications built with advanced technology for database repair. Moreover, you can use these tools without any prior technical skills as they provide an interactive user interface.

Stellar Phoenix Mailbox Exchange Recovery is an advanced and safe Repair EDB utility that employs powerful scanning algorithms to repair a damaged Exchange Server database. It is compatible with Exchange Server 5.5, 2000 and 2003. It is a safe EDB Repair utility with impressive set of features. The tool extracts user mailboxes in individual .pst file format files.