What to do when hpacucli is locked but there is no process for it
# hpacucli
HP Array Configuration Utility CLI 7.50.18.0
Detecting Controllers...
Error: Another instance of ACU is already running (possibly a service). Please
terminate the ACU application before running the ACU CLI.
# ps -ef | grep -i acu
root 26127 11377 0 15:12 pts/3 00:00:00 grep -i acu
goto /opt/compaq/cpqacuxe/bld/locks and remove all the files in that directory
then run hpacucli