25VolSnapThe shadow copies of volume C: were deleted because the shadow copy storage could not grow in time. Consider reducing the IO load on the system or choose a shadow copy storage volume that is not being shadow copied.
This message is typically logged if the system is experiencing high disk activity while a shadow copy is being created (attempted to be created).
You should worry about this message only if it is being logged periodically, which would imply a performance problem on the server.