Use this MAP to resolve the following problem: Multiple controllers connected in an invalid configuration (SRN nnnn - 9073)
One adapter, of a connected pair of adapters, is not operating under the same operating system type as the other adapter. Connected adapters must both be controlled by the same type of operating system. Correct the configuration. If correcting the configuration does not resolve the error, contact your hardware service provider.
When the problem is resolved, see the removal and replacement procedures topic for the system unit on which you are working and do the "Verifying the repair" procedure.