Putting HDD to sleep

[StanTastic]

I see that the topic gets mulled over and over again, but there's no clear solution I found.

One of my drives is used for XPenology, and it really should only be working 2-3 hours a day. Unfortunately I'm using Atom J1900, which means I have no IOMMU that could be used to pass the controller to VM (would be preferred solution).

One thing that works is disabling pvestatd, but with this I lose a lot of info about my VM host.

Is there any alternative?

 

[guletz]

Hi,

Maybe you will think again if you really want this. Consider that any hdd will be mostly be under mechanical stress during on/off when in almost 1 second will start from 0 to 7200 rpm. The same will be for temperture (20-25 C before start to 34-40 C on full load at 7200 rpm).

The result will be that you will use your hdd for less time because of unnecessary stop/start.

Good luck / Bafta

 

[StanTastic]

Thanks for the reminder, but I have good experience with that - I haven't had a drive failed due to this, and I'm putting my drives to sleep for the past 20+ years

 

[guletz]

I haven't had a drive failed due to this,

I do not say this.

 

[Andrey.Lysikov]

You need hd-idle software, it works fine on pve host system.

 

[lonsimbt]

@StanTastic
Did you try this approach?

https://forum.proxmox.com/threads/disk-prevent-from-spinning-down-because-of-pvestatd.53237

 

[StanTastic]

All right, so I modified /etc/lvm/lvm.conf with the following filter:
global_filter = [ "r|/dev/sda*|", "r|/dev/zd.*|", "r|/dev/mapper/pve-.*|" "r|/dev/mapper/.*-(vm|base)--[0-9]+--disk--[0-9]+|"] - after this dstat shows way less io on the drive (for me it's /dev/sda).

Then I downloaded hd-idle from https://github.com/adelolmo/hd-idle.

Enabled the service in /etc/default/hd-idle, and now I'm testing if it has proper effects.

 

[StanTastic]

Hi again,
I can confirm this works, the drive is now on standby about ~60% of time. For some reason the guest keeps waking it up. Oh well...