The BreaksnapshotSetEx method failed because the disk signature of one or more shadow copy LUNs could not be reverted to ...

The BreaksnapshotSetEx method failed because the disk signature of one or more shadow copy LUNs could not 
be reverted to those of the original LUNs. If one or more original LUNs are not masked on the computer, this
can cause a disk signature collision.  Disk signatures of dynamic disks cannot be reverted.
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