Disk power-on hours

I’ve had my EX4100 for a bit over a year now, and I had a disk failure a few days ago. After replacement, I thought to check the disk age of all the disks. The storage → disk status page has a link to the S.M.A.R.T. data, which includes the Power_On_Hours parameter, so far so good. I examined all of the disks and they are all showing less than 100 hours, which is ridiculous - most of the disks have been on for over a year, probably nearing the 10,000 hour mark. What’s up with that? Is there a way to get the real data?

Running the latest firmware 5.26.119

Hi @ardory,

Have you opened a Support Case? If not opened, for more information, please contact the WD Technical Support team for the best assistance and troubleshooting:

I opened a support case 230315-009223 but no resolution so far. I’ll post back here if they find something that is useful.
I would imagine that this is a firmware issue and not a hardware or disk issue, but that’s just my guess.
I’m wondering if the disk SMART data works OK and makes sense for anyone else.