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Exchange 2007 Recovery Strategies

Like all email hosting systems, messaging services that are installed with MS Exchange 2007 database also run at a risk of database corruption or server crash. Since, email communication is crucial to an organization, it is important to plan in advance for the probable disasters caused because of Exchange 2007 database corruption. A disaster management system for Exchange 2007 recovery should therefore be in place, even if backups are maintained.

The key strategies on which such a system would focus are maintaining system backups of the Exchange database, transaction log files, management scripts, system management tool and cluster configuration information. Furthermore, such a system would need a powerful mechanism to recover the entire server, mailboxes and individual items, Exchange databases (both from streaming and hardware backup sets) and database storage groups.

Exchange 2007 recovery can be performed with the help of Microsoft Exchange Hosting Services having the following four distinctions:

  • Hosted Filtering, to help organizations from e-mail-borne malware
  • Hosted Archive, to satisfy retention requirements for compliance
  • Hosted Encryption, to encrypt data in order to preserve confidentiality
  • Continuity, to preserve access to e-mails during and after emergency situations

The need of Exchange 2007 recovery may arise when one or more databases in the storage group has gone corrupt; hardware failure has led to loss of databases or access to the log files, user mailbox or Public Folder Server had been damaged or the entire server has collapsed. While designing a disaster recovery system for Exchange 2007, it is equally important to understand the issues at hand regarding the components of the messaging system, which needs to be recovered.

The Exchange 2007 recovery strategy must focus on restoring the server, rebuilding the server or using a standby server while repairing the database files. Also, resources must be utilized to protect the AD and Exchange data including the transaction log files.

There are softwares available for disaster recovery in case of Exchange 2007 corruption which enable system administrators to recover and restore the server, restore the mailboxes and public folders, retain the deleted mailbox items, recover the storage groups and queue the database on a transport server. The software included with MS Exchange Server 2007 are as follows:

  • Database Recovery Management
  • Database Troubleshooter
  • Exchange Server Database Utilities ( Eseutil.exe)
  • Information Store Integrity Checker ( Isinteg,exe)

However, when these pre-installed utilities fail, commercially available software applications must be employed for core disaster recovery. Using tools like Exchange Recovery tool enables administrators to rebuild the corrupt database, mount the recovered database on the MS Exchange Server and accomplish complete Exchange 2007 recovery by restoring deleted mailboxes and items. This is performed by converting the EDB database files to Outlook PST format so that the data becomes accessible from the email client. By conversion from EDB to PST format, user mailboxes can be recovered from the public folders and storage groups facilitating restoration of the damaged Exchange database.





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