GUI
Smart Storage Administrator GUI allows to see the Power On Hours. In the SSA GUI, select the drive and review the Physical Drive details -> Power On Hours:Smart Storage Administrator (SSA) –Quick Guide to Determine SSD Power on Hours
ADUReport
Power On Hours can also be seen on the SSD Wear Gauge section for each drive in the ADU report:
https://support.hpe.com/hpesc/public/docDisplay?docId=emr_na-a00092478en_us
Bulletin: (Revision) HPE SAS Solid State Drives – Critical Firmware Upgrade Required for Certain HPE SAS Solid State Drive Models to Prevent Drive Failure at 40,000 Hours of Operation
https://support.hpe.com/hpesc/public/docDisplay?docLocale=en_US&docId=a00097382en_us