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Rapid Recovery 6.1.2 - Mailbox Restore for Exchange User Guide

Legend Understanding Mailbox Restore for Exchange Preparing to use Mailbox Restore for Exchange The Local Mount Utility and Mailbox Restore Using Mailbox Restore for Exchange Restoring Exchange data using Mailbox Restore Exchange database maintenance in Mailbox Restore About us Glossary

Methods for repairing an Exchange database

Mailbox Restore offers two ways of repairing an Exchange database if a physical integrity check discovers corruption.

The Mailbox Restore Physical Integrity Check Wizard includes a repair function that uses basic repair logic for minor repairs and an aggressive repair function that uses advanced logic for heavily corrupted databases.

Also available through Mailbox Restore is the ability to run the Microsoft Eseutil.exe command line utility. In addition to the -/k option for database verifications, Eseutil.exe offers a -/p option for .edb file repairs.

Both the Physical Integrity Check Wizard and the Eseutil.exe utility are effective at addressing database corruption. The option to run Eseutil.exe is available through the Database Maintenance menu for easy access and through the Physical Integrity Check Wizard as a way to confirm integrity check or repair results. You could also run the Eseutil.exe first and then confirm the results with the Physical Integrity Check Wizard.

Repairing a corrupted data store using the Physical Integrity Check Wizard

If Mailbox Restore indicates during a physical check that corruption exists in the database, you can use the Database Maintenance Wizard to repair the database.

1.
From the toolbar on the Mailbox Restore home page, click Physical Integrity Check.
2.
On the Physical Integrity Check dialog box, click Yes to confirm.
3.
On the Physical Integrity Check and Repair page, use the drop-down list or the browse button to select the Exchange Database File (.edb) Path described in the following table.

Table 12. Exchange database file paths

Path

Description

Exchange Database File (.edb) Path

The location of the Exchange database file with the extension.edb. By default, it is stored in the following location: C:\Users\administrator\AppData\Local\Mounts.

Log File Path

Automatically populated. It is the location of the log files associated with the database.

System Files Path

Automatically populated. It is the location of the system files associated with the database.

4.
In the table, use the Repair column to select the following options that you want to repair.

Table 13. Database repair options

Option

Description

Database header checksum

Attempts to repair the database header pages by re-computing the checksum.

Database page checksums

Attempts to repair the database pages by re-computing their checksums.

Database page last modification time

Sets the last modified time of the database pages to the last modified time of the database header so that they are the same.

Log file headers

Attempts to repair invalid log file header pages.

Dirty shutdown state

Resets the dirty shutdown state in the database header.

Dirty shutdowns occur when the database was not closed property.

5.
Optionally, select Perform aggressive repair.

This option uses a special algorithm to salvage as much data as possible from a corrupted database and does not change any corrupted data that it finds. When the repair is complete, all healthy and corrupted data is accessible.

WARNING: An aggressive repair is intended for heavily corrupted databases only. This type of repair could result in data loss and should not be used for legal discovery. Be sure to have a reliable backup of the database before you select this option.

If you understand the risks associated with this type of repair, in the confirmation box, click I understand, proceed.

6.
Click Start.
The Physical Integrity Check and Repair screen appears and displays the status of the database repair. A message notifies you when the check is complete.
7.
Optionally, to reopen the database, select Open database after closing the wizard.
9.
Click Close.

Running the Eseutil.exe command line utility

Eseutil.exe is a command line utility from Microsoft. It provides a second option for conducting integrity checks and repairs of Exchange .edb files, in addition to the Mailbox Restore Physical Integrity Check Wizard.

1.
On the Mailbox Restore home page, click the Database Maintenance drop-down menu, and then click Run Eseutil.exe.
The Run Eseutil.exe window opens.
3.
In the Run Eseutil.exe window, use the drop-down list or the browse button to select the Exchange Database File (.edb) Path described in the following table.

Table 14. Exchange database file paths

Path

Description

Exchange Database File (.edb) Path

The location of the Exchange database file with the extension .edb. By default, it is stored in the following location: C:\Users\administrator\AppData\Local\Mounts.

Log File Path

Automatically populated. It is the location of the log files associated with the database.

System Files Path

Automatically populated. It is the location of the system files associated with the database.

Option

Description

Repair a corrupted or damaged database

Repairs minor corruption found on an Exchange database.

Verify the checksum of a database

Calculates the checksum of a page and compares it with the checksum value stored in the header to ensure that there is no corruption.

5.
Click Start.

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Technical support resources

Technical support is available to Quest customers with a valid maintenance contract and customers who have trial versions. You can access the Quest Support Portal at https://support.quest.com.

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