The 12X controller detected an invalid firmware action. All connections on this loop will be in a failed state. If there are errors logged against I/O Adapters on this loops, do not replace any I/O Adapter hardware. This SRC is the root cause. Work with your service provider to collect error logs and a platform system dump. Then, check for firmware updates and install them, if available. If that does not resolve the problem, replace the 12X controller.