No more spindown after upgrading from 25.04 to 25.10

TrueNAS General
1

Hi,

I have upgrade my TrueNAS scale without problem from 25.04 to 25.10.

I only lost one important feature : the HDD spindown.

I have six 7200 HDD SATA disk, with only a NFS share on it. Means, nothing at all regarding ix app, logs etc.

If I boot the TrueNAS without network cable plugged in it, HDD never spindown even after several hours.

When I send the 6 commands “hdparm -S 120 /dev/sdX“ from console, I have the 6 HDD spinning down as it should 10 minutes after. Then, even if I connect back the network, no spinup if I do not access to the NFS share for several hours. If I do an access to the NFS share, file is served, then the HDD spindown after 10 minutes, as it should.

If I go on each disk setup on TrueNAS menu, everything is correctly setup, means “1” for the most aggressive APM setting, and the 10 minutes setting is selected.

I conclude TrueNAS doesn’t send any-more the spindown timer setting, I need to set it by hand after each reboot, but how could I check it?

How can I activate logs, or maybe I’ve miss something in the setup of this new 25.10 ?

(I run last version : 25.10.3.1 - Goldeye, and see in the release notes some major change in smart stuff)

Cheers,

2

The issue is that 25.10 added a new kernel module to measure disk temperatures. And that module probles the disks every 5 minutes or so, which breaks spinn down.

There’s already a feature request to fix the “broken” behavior

3

Thanx for your fast reply.

It’s a little bit strange because this new feature you point isn’t spin-up my disk each 5 minutes.

If I send “hdparm -S 120 /dev/sdX” on my own, without acting on this new temperature probe feature, disks goes off as it should, and stays off for several hours, until next true users access. I’m 100% sure of this behaviour.

Are you sure this is the same issue ?