Error code %1 when freezing the Storage groups.

Product: Exchange
Event ID: 9611
Source: MSExchangeIS
Version: 6.5.6940.0
Component: Microsoft Exchange Information Store
Message: Error code %1 when freezing the Storage groups.

This problem can occur if all the following conditions are true when the Volume Shadow Copy Service requestor in the third-party backup program uses Volume Shadow Copy Service to back up or to restore selected Exchange Server 2003 storage groups:

  • You use volume mount points for Exchange Server 2003 data storage.
  • The volume that you try to back up has multiple globally unique identifiers (GUIDs) in the mount-manager database.
  • The volume mount point refers to a GUID that is not the first GUID for the volume in the mount-manager database.
User Action

A supported hotfix is now available from Microsoft that resolves this error. For information about obtaining this hotfix, see Microsoft Knowledge Base article 838864 “A backup or a restore operation of Exchange 2003 storage groups fails with event IDs 9609 and 9611 when you use Windows Server 2003 Volume Shadow Copy Service” (


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