Cannot stop hard drives spinning down

[Taomyn]

I have 5 Toshiba 4TB SATA drives attached to my Proxmox server, and for some reason they keep spinning down when I want them all to be running all the time.

Using hdparm I'm able to apply "-B" to each one, "/dev/sdd" through "/dev/sdh" and they respond with "APM_level = off", and stay that way until I reboot the machine. When I immediately check after they are all set to "APM_level = 254, and then a short while later "APM_level = 20".

Any ideas what is overriding the disable setting? I also checked using sdparm but got nowhere even trying to find out if it could see power settings. I do also have "smarttools" installed for monitoring by Zabbix, which is how I detected this because it keeps logging the drives going in and out of idle etc

Proxmox v8.2.4 - 6.8.8-2-pve

 

[LnxBil]

Without knowning your storage setup, we can only guess, yet in general, there is a lot written to the disks constantly.

 

[Taomyn]

Hope this shows the storage, let me know if there is anything else I can provide:

 

[LnxBil]

ZFS flushes constantly to disk, so sleeping is not possible.

 

[justinclift]

so sleeping is not possible.

Um, isn't @Taomyn attempting to not have the HDDs power down, but something appears to be trying to make it happen?

 

[Taomyn]

Um, isn't @Taomyn attempting to not have the HDDs power down, but something appears to be trying to make it happen?

Yes, I just want to disable the power management regardless of what else is happening.

 

[LnxBil]

Um, isn't @Taomyn attempting to not have the HDDs power down, but something appears to be trying to make it happen?

You're absolutely right, I misread the text.

That is really, really strange indeed. Can you provide the hard numbers from smartctl if the drives are actually spinning down constantly?

 

[Taomyn]

I do see messages from smartctl that show the disk status changing, which is why I want to be sure the disks cannot be placed into anything other than active hence wanting to disable the power management.

Jun 28 09:07:02 abe smartd[2318]: Device: /dev/sdd [SAT], is back in ACTIVE or IDLE mode, resuming checks (1 check skipped)
Jun 28 09:07:03 abe smartd[2318]: Device: /dev/sde [SAT], is back in ACTIVE or IDLE mode, resuming checks (1 check skipped)
Jun 28 09:07:03 abe smartd[2318]: Device: /dev/sdf [SAT], is back in ACTIVE or IDLE mode, resuming checks (1 check skipped)
Jun 28 09:07:03 abe smartd[2318]: Device: /dev/sdg [SAT], is back in ACTIVE or IDLE mode, resuming checks (1 check skipped)
Jun 28 09:07:04 abe smartd[2318]: Device: /dev/sdh [SAT], is back in ACTIVE or IDLE mode, resuming checks (1 check skipped)
Jun 28 10:37:07 abe smartd[2318]: Device: /dev/sdd [SAT], is in STANDBY mode, suspending checks
Jun 28 10:37:12 abe smartd[2318]: Device: /dev/sde [SAT], is in STANDBY mode, suspending checks
Jun 28 10:37:17 abe smartd[2318]: Device: /dev/sdf [SAT], is in STANDBY mode, suspending checks
Jun 28 10:37:22 abe smartd[2318]: Device: /dev/sdg [SAT], is in STANDBY mode, suspending checks
Jun 28 10:37:27 abe smartd[2318]: Device: /dev/sdh [SAT], is in STANDBY mode, suspending checks

I also just saw his which is interesting as I did try using the hdparm.conf to control it but I thought it was being ignored:

Jun 28 10:13:56 abe (udev-worker)[771091]: sdf: Process '/usr/bin/hdparm -B 255 /dev/sdf' failed with exit code 1.
Jun 28 10:13:56 abe (udev-worker)[771091]: sdf: Process '/usr/bin/hdparm -S 0 /dev/sdf' failed with exit code 1.
Jun 28 10:13:56 abe (udev-worker)[771093]: sdh: Process '/usr/bin/hdparm -B 255 /dev/sdh' failed with exit code 1.
Jun 28 10:13:56 abe (udev-worker)[771093]: sdh: Process '/usr/bin/hdparm -S 0 /dev/sdh' failed with exit code 1.
Jun 28 10:13:56 abe (udev-worker)[771069]: sdd: Process '/usr/bin/hdparm -B 255 /dev/sdd' failed with exit code 1.
Jun 28 10:13:56 abe (udev-worker)[771069]: sdd: Process '/usr/bin/hdparm -S 0 /dev/sdd' failed with exit code 1.
Jun 28 10:13:56 abe (udev-worker)[771071]: sdg: Process '/usr/bin/hdparm -B 255 /dev/sdg' failed with exit code 1.
Jun 28 10:13:56 abe (udev-worker)[771071]: sdg: Process '/usr/bin/hdparm -S 0 /dev/sdg' failed with exit code 1.
Jun 28 10:13:56 abe (udev-worker)[771092]: sde: Process '/usr/bin/hdparm -B 255 /dev/sde' failed with exit code 1.
Jun 28 10:13:56 abe (udev-worker)[771092]: sde: Process '/usr/bin/hdparm -S 0 /dev/sde' failed with exit code 1.

I added this at the end:

/dev/sdd {
       apm = 255
}

 

[LnxBil]

I wanted the ouput of your smart values, especially the spinup-related ones.

 

[Taomyn]

I wanted the ouput of your smart values, especially the spinup-related ones.

Ah, sorry, this is one of the 5 unless you wanted all of them

 

[LnxBil]

Wow, those spin-up and start/stop cycles are a lot.

Are there any other non-default packages installed?

What about your complete hdparm.conf? Mine is empty besides a quiet:

root@proxmox-beta ~ > grep -Eve '^(#|$)' /etc/hdparm.conf
quiet

 

[Taomyn]

Yes, I probably have a few non-default packages, not sure how best to show just those so attached all installed, but from memory I do have the Zabbix Agent2, and tools like htop, smartmontools, screen.

 

[LnxBil]

Yes, I probably have a few non-default packages, not sure how best to show just those so attached all installed, but from memory I do have the Zabbix Agent2, and tools like htop, smartmontools, screen.

Maybe something was installed that triggers those spindowns. Why is hdparm running so often from udev? This is not normal.

 

[justinclift]

Hmmm. Getting a bit creative here, but you could temporarily replace the hdparm executable with a shell script or similar that dumps the output of ps -ef f to a text file when it runs.

That'll give you the complete list of all processes running on the system at the time it runs, and do it in tree format so you can fairly easily see what called it.

 

[Maximiliano]

Hello,

My advice would be to double check that the BIOS settings do not have anything power-saving related and everything is set to "performance" mode. If the disks are attached to a hardware controller, that would be the second place where I would look at.