It’s definitely not the recent ZFS bug that others mentioned here. Simply to the fact that when corruption occurs due to that bug it cannot be identified, the filesystem is consistent.

https://discourse.practicalzfs.com/t/recurring-permanent-errors-in-healthy-zpool/919/5 is this relevant perhaps?

Amazing website. I’m unable to load the last 10 messages. It says it loads them sucessfully but it does nothing.

please uninstall handbrake and forget it exists

I just hope you can find these toshibas at a reasonable price lol. Looks good.

but I was wondering if it’s genuine

Nothing extraordinary, looks genuine. These white ones are OEM drives.

Also, I read on the web that is more noisy that the average hard drive, so I was expecting to hear a noisy motor, but actually the motor itself is very quiet, I think quieter than the other drives I own, but the drive it’s very noisy when it read or write data (it looks like there is a hamster wheel inside). Is it normal?

Motors are mostly silent, yes. It is normal.

Also, not on this unit, but on the other one that I’m testing right now, I noticed a small dent on the enclosure.

If the dent was caused by pressure that’s fine. If the dent was caused by an impact it’s not fine.

as far it works properly I should be fine?

if you crack your head but then you work properly, it’s fine-ish, I guess?

“NAS” in the name doesn’t matter. If it’s CMR and specced for 24/7 work it’s fine.

I can find same HD in amazon for less and those in amazon still expensive.

you sure?

https://www.westerndigital.com/

Enclosure issue, potentially with encryption involved. Can’t say more without knowing details.

If you determined that whatever caching the OS does is insufficient then you can try ZFS with a special vdev for metadata (though beware, it’s not cache).