failed to add device 'Microsoft Synthetic Disk Drive'

Event ID 12610 - Cannot attach storage media to the controller because the specified location is in use
Event ID 12611 - Cannot attach storage media to the controller because the specified location is in use
Event ID 14140 - failed to add device 'Microsoft Synthetic Disk Drive'

Situation: When attempting to add a device to Hyper-V VM, you may receive these errors:Log Name: Microsoft-Windows-Hyper-V-VMMS-Admin
Source: Microsoft-Windows-Hyper-V-VMMS
Date: 1/2/2012 9:35:27 PM
Event ID: 14140
Task Category: None
Level: Error
Keywords:
User: SYSTEM
Computer: Hyper-V
Description:
'SBS2008' failed to add device 'Microsoft Synthetic Disk Drive'. (Virtual machine ID BEE471FA-C3F5-40BC-A5CF-7A9B14B04ED1)

Log Name: Microsoft-Windows-Hyper-V-VMMS-Admin
Source: Microsoft-Windows-Hyper-V-VMMS
Date: 1/2/2012 9:35:27 PM
Event ID: 12610
Task Category: None
Level: Error
Keywords:
User: SYSTEM
Computer: Hyper-V
Description:
'SBS2008': Cannot attach storage media to the controller because the specified location is in use. (Virtual machine ID BEE471FA-C3F5-40BC-A5CF-7A9B14B04ED1)

Event ID 12611 - Cannot attach storage media to the controller because the specified location is in use.

Resolution: Attach device or media to different location. In our case, SBS2008.vhd is using Location 0 and 2nd4sbsk.vhd is using Location 1 in IDE Controller 0. hen we try to add 2nddrive.vhd to IDE Controller 0, we get failed to add device and Cannot attach storage media to the controller because the specified location is in use error. It works if we select IDE Controller 1 or SCSI Controller.

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