Differential Exchange 2003 Backups fails with Event ID 206


This article provides a solution to a common Exchange Backup error.


Applies To

Microsoft Server 2003

Symptoms / Description

  • The differential / incremental exchange backups fails.
  • Event ID 206 is logged when you try to run an incremental Volume Shadow Copy Service (VSS) snapshot backup on an Exchange 2003 server.

Event ID: 206
Source: ESE
Category: Logging/Recovery
Type: Error
Description: Information Store (1156) First Storage Group: Database cannot be incrementally backed up. You must perform a full backup before performing an incremental backup.


To resolve:

Third-Party Sources



This is a known problem with Microsoft's VSS system in Server 2003 that affects servers in certain environments.


For more detailed information on backup failures and performance issues seeĀ Unitrends KB 5062 - Backup Failures and Performance Issues

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