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VDS Basic Provider event ID 1 is logged in a Hyper-V guest operating system

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This article discusses an issue in a Hyper-V guest operating system where Virtual Disk Service (VDS) Basic Provider event ID 1 is logged.

Applies to:   Windows 7 Service Pack 1, Windows Server 2008 R2 Service Pack 1
Original KB number:   979391

Symptoms

Consider the following scenario:

  • You have a Hyper-V guest operating system that is running Windows Server 2008 R2 or Windows 7.
  • The guest operating system has a disk that is connected to a SCSI controller.

In this scenario, the following event is logged in the System log:

Event Type: Error
Event Source: Virtual Disk Service
Event Category: None
Event ID: 1
Date:Date
Time:Time
User: N/A
Computer:computer name
Description: Unexpected failure. Error code:exception code

Cause

The VDS looks for the Location paths property of the controller. The value of this property is the path location of the disk. However, a virtual controller doesn't have this property.

Resolution

This event can be safely ignored.