Microsoft KB Archive/932446

= Error event in the System log when you use the DpmBackup program in System Center Data Protection Manager 2006: &quot;Error code 1@01000003&quot; =

Article ID: 932446

Article Last Modified on 11/27/2007

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APPLIES TO


 * Microsoft System Center Data Protection Manager 2006

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SYMPTOMS
When you use the DpmBackup command to create shadow copies of the replica volumes in Microsoft System Center Data Protection Manager 2006, the backup operation runs successfully. However, when you examine the System log, you notice that the following Error event is logged: Event Source: VDS Basic Provider 1.0

Event Category: None

Event ID: 1

Date:

Time:

Type: Error

User: Not applicable

Computer:

Description: Unexpected failure. Error code 1@01000003

You experience this behavior if the Virtual Disk Service is running.

Note The DPM service depends on the Virtual Disk Service.



CAUSE
This behavior occurs because of how the Virtual Disk Service works with volumes in Microsoft Windows. When the DpmBackup.exe program runs, the volume snapshots that this program generates are mounted as virtual volumes. When a new volume snapshot is created, the Virtual Disk Service calls the IOCTL_STORAGE_GET_DEVICE_NUMBER storage I/O control code to obtain the device number of the new volume. However, because there is no device number associated with a volume snapshot, the Virtual Disk Service provider generates an error and then logs an Error event in the System log.



WORKAROUND
You do not have to take any action to work around this behavior. This behavior does not indicate a problem in Data Protection Manager 2006.



MORE INFORMATION
For more information about Data Protection Manager 2006 and about the DpmBackup program, see the Data Protection Manager 2006 Operations Guide. To obtain this guide, visit the following Microsoft Web site:

http://technet.microsoft.com/en-us/dpm/bb725992.aspx

Keywords: kbeventlog kbtshoot kbprb KB932446

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