Spin down disk passed through to VM

[proxSid]

Hello; I am trying to configure 2 of my HDD to spin down if there are idle for XX amount of time. The 2 disks are passed over to a VM (unraid) using the following method:

scsi1: /dev/disk/by-id/ata-WDC_WD40EFAX-68JH4N1_WD-WXC2D53NEK11,backup=0,size=3907018584K,scsiblock=1

Since I am not able to passthrough the drives via PCIe, I am trying to see how i can spin down the drives as unRaid will not spin them down as they are "virtual" drives

Thank you,

 

[fschauer]

pvestatd keeps the drive active
If you want to be able to spin it down, you would have to either disable the storage or exclude the drive in /etc/lvm/lvm.conf with

global_filter=["r|/dev/zd.*|", "r|/dev/disk/by-id/ata-WDC_WD40EFAX-68JH4N1_WD-WXC2D53NEK11"]

 

[proxSid]

Thank you, i added this line into the .conf file and remoted PVE but on my unRaid VM I am still not able to spin down the disk. This might have something to do with the passthrough method i used.

 

[fschauer]

Did you either restart PVE or run vgscan to reload the LVM config?
You should then be able to spin down the disk from the host with:

hdparm -y /dev/sdX

If you want it to automatically spin down after some time of inactivity, you can use hd-idle, which is found in the Debian repository.

 

[proxSid]

With my setup, I have this drive passed through via qm set scsi to a unraid VM. And when I rebooted and tried issuing that command it was still green in unraid. I even tried to spin down via unraid and it stays green. Might need a HBA card it seems like and pass that entire card over.

 

[sshaikh]

Yes - hd-idle/standby seems to work fine in proxmox... as long as the VM the disk is being passthrough'd to is off. Once on it doesn't seem to standby at all, even if the VM guest isn't using it. I suspect QEMU keeps a hold on the disk or something.

 

[jalict]

Found this post as I was looking for this exact answer - seems fitting to collect more of that info here (And future Wiki)

I have the Disks set to stand-by after 30 minutes in my VM. Would I also have to configure the LVM for the filter of the disks by id or some other method?