In Microsoft Exchange Server, you can check and fix the integrity and consistency of Information Store database using Isinteg.exe utility. This built-in command-line tool works on all information store databases such as public information store, Pub.edb, and private information stored, Priv.edb. However, in some cases, you encounter errors while trying to resolving information stored database issues in Exchange Server, and the process fails. The problem persists and you can not access data from Exchange Server database. This behavior leads to data loss and need Exchange Server Recovery to be sorted out.

In a practical scenario, you may come across the below error message when you run the Isinteg -patch on MS Exchange Server that is running on Microsoft Cluster Server:

“The private store could not be updated
Reason: JET_errKeyDuplicate”

Before running the Isinteg -patch tool on Microsoft Exchange Server computer, which is running on the Microsoft Cluster Server, it is essential to set environment variable _CLUSTER_NETWORK_NAME_ to ERG (Exchange Resource Group) name. For instance, when the ERG network is named as EXCLUSTER, type the below as command prompt:

SET_CLUSTER_NETWORK_NAME_=IP ADDRESS NAME

• Here IP ADDRESS NAME is name assigned to IP ADDRESS resource in Exchange Resource Group. It is essentially NetBIOS name of exchange Server computer.

In such circumstances, the Isinteg utility fails after restore the database, which was forklifted from the stand-alone Exchange Server computer to the clustered Exchange Server computer.

The failure occurs if the value of _CLUSTER_NETWORK_NAME_ environment variable is incorrect. It can be due to typographical errors. After the environment variable is set, you can not change it.

If you have incorrectly set the environment variable on your Exchange Server database, the database corruption or inaccessibility situations may occur. In such circumstances, you must perform complete restore of the database as you can not change cluster name in information.

Inaccessibility of the Exchange Server Database (EDB) file leads to data loss situations and need Exchange Recovery to be sorted out. Recovery is best possible with the help of powerful and advanced third-party EDB Recovery Software.

These applications are particularly designed to carry out in-depth scan of entire EDB file and extract all damaged, inaccessible, and corrupted mailboxes. The Exchange Recovery tools have read-only and non-destructive conduct to retrieve your data safely.

Exchange Recovery is a comprehensive edb recovery tool and ensure absolute recovery of all EDB file objects including emails, notes, contacts, tasks, journal, and more. The software works well with Microsoft Exchange Server 2007, 2003, 2000, and 5.5.