When the system is miswired, the fault service daemon cannot always detect the problem. The daemon updates the file cable_miswire, where it reports all the miswires it finds. When reporting a miswire problem, an entry may be missing from this file, or an entry may be incorrect.
If a node is powered on before the switch board receives power, a diag_fail condition may occur. See diag_fail condition for an SP Switch adapter.