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Knowledge Base

VMware Data Recovery fails to restore a virtual machine with the error: Incompatible device backing specified for device X (1012780)

Last Updated: 5/13/2010Categories: Total Views: 15800Language:
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Symptoms

Restoring a backed up virtual machine using VMware Data Recovery fails.

The restore fails when the virtual machine is restored to a new virtual machine with a different name.

The vcbAPI-x.log file contains an entry similar to:

[2009-07-22 08:34:42.097 'vcbAPI' 2893015952 error] VcbAPI::HostServer::SaveVM: Error waiting for task completion: Incompatible device backing specified for device '1'.

The hostd-x.log file contains an entry similar to:

[2009-07-22 11:34:37.525 F6381B90 info 'vm:/vmfs/volumes/4a5b93e7-c3747840-e136-001e0bcbbac8/hsmrpt01-test3/hsmrpt01-test3.vmx'] Exception thrown vim.fault.InvalidDeviceBacking

The recent tasks in VMware Infrastructure (VI) Client show that the Create VM task failed:

Incompatible device backing specified for device '1'

Resolution

This issue occurs if the backed up virtual machine has a reference to a device that is not being populated in the ConfigSpec of the new virtual machine. You can observe this with a CD-ROM device pointing to the physical CD-ROM drive in the :/dev/scd0 server.

As a workaround, restore only the disks of the virtual machine and not the .vmx configuration file.

To restore only the disks:

Create a new virtual machine without any disks.

Using the VDR appliance, click the virtual machine you are trying to restore.

In the Restore Wizard, click Show Existing Inventory and find the virtual machine created in Step 1.

Drag the disk(s) from the virtual machine being restored to the virtual machine created in Step 1.

Restore the virtual machine.

Start the virtual machine created in Step 1.

Detectable by VMware SkylineTM

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Additional Resources

KB
•
End Of General Availability of the Free vSphere Hypervisor (ESXi 7.x and 8.x) (2107518)

KB
•
Download and Install VMware Fusion (2014097)

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