To display details or information of the P400 raid for on a HP Itanium server HP-UX 11.31...
# ioscan -kfnd ciss
Class I H/W Path Driver S/W State H/W Type Description
==========================================================================
ext_bus 5 0/6/0/0/0/0/1/0/0/0 ciss CLAIMED INTERFACE PCIe SAS SmartArray P400 RAID
Controller
/dev/ciss5
then..
# sautil /dev/ciss5