Looks like a HPE firmware problem. Have a look in this thread https://forum.checkmk.com/t/hpe-integrated-lights-out-ilo-5-3-0-breaks-storage-monitoring-on-snmp-management-board/44182/19
Looks like this new “feature” was backported to iLO5, too. 
Looks like a HPE firmware problem. Have a look in this thread https://forum.checkmk.com/t/hpe-integrated-lights-out-ilo-5-3-0-breaks-storage-monitoring-on-snmp-management-board/44182/19
Looks like this new “feature” was backported to iLO5, too.