You can read out the FARM logs of Seagate hard drives using
smartctl -l farm /dev/sd<n>
They're supposed to be "more trustworthy" than the regular SMART stats.
(My two "new" 16TB Exos drives had 0 hours (regular) and ~18k hours (farm) - DOM 04JUN2021 and 07JUN2021. Also, zfs refused to format the drive: 'already formatted as ddf_raid_member'.)
how are they "more trustworthy"? after all, it's data on a flash on the drive board.
is it lack of tooling, as demonstrated by needing the last smartmontools version to even read them, or some protection in the firmware to prevent resetting them (hey, no legit business resetting the power-on hours to zero...).
I checked the recertified ironwolf 12TB drives I bought, and both SMART and FARM report times in line with when I installed them in my nas. Of course, since they're recertified by seagate themselves, they may very well have a backdoor to reset FARM.
It's not wild for people who choose to use a stable distribution that last released prior to smartmontools 7.4. It's exactly what they want and choose.
(Debian 12: 10 June 2023; smartmontools 7.4: 1 August 2023)
But I don't see how to gain access to the whatever logs are buried in the drive's memory. The instructions for the utility don't provide any guidance on this. How does one actually extract logs from the drive?
Thanks for the suggestion. I wiped my orphaned 2014 iMac and installed Mint on it, so I guess I should be good to go. I just didn't want to go under my desk to unplug my toaster dock and move it unless necessary.
If you have an ARM Mac and a USB enclosure for the drive, I had some success with smartmontools running in ARM Linux under VmWare. I also tried UTM (pretty much QEMU), but UTM's USB passthrough was not good enough.
Interesting. Thanks for that. I have the drive hooked up to a Mint computer running the openSeaChest utility, but that utility appears to only parse the logs. I can't find any way to extract the logs from the drive's memory. This is undocumented by the utility as far as I can tell.
(My two "new" 16TB Exos drives had 0 hours (regular) and ~18k hours (farm) - DOM 04JUN2021 and 07JUN2021. Also, zfs refused to format the drive: 'already formatted as ddf_raid_member'.)