"hpssacli ctrl all show config" stuck

I did a:

hpssacli ctrl all show config

on a dl380p g8 box running RHEL release 6.5.

The command simply stuck: I waited a couple of minutes without seeing

any output before hitting ctrl-c to terminate the task.

rpm say there are the following 2 packages installed:

rpm -aq | grep -i hpssa

hpssa-1.60-17.0.x86_64
hpssacli-1.60-17.0.x86_64

Firmware release of the  HP Smart Array P420i Controller is 5.42.

 Any help in understanding what's going on appreciated.

Thanks,

Giovanni