some error conditions might cause the service processor to hang. the service processor must be reset to recover from a hung condition. if the system is powered on, resetting the service processor will cause the system to shut down. when the service processor is reset, it carries out its power-on sequence, including self-tests. successful completion of the reset sequence is indicated by ok in the operator panel in the media drawer.

    before resetting the service processor, if the managed system is powered on and running aix, shut down all partitions, or the full system partition. this action causes the system to shut down and the system power is turned off.

    to reset the service processor when the managed system is powered off, perform either of the following:

    1 if the service processor is responding to input from the hmc (or ascii terminal), select service processor setup menu from the main menu, then select reset service processor. this can only be done by a privileged user.

    2 put the uepo switch in the off position, then back to the on position.

    do not use the pinhole reset switch to reset the service processor.