LXC containers mount options (noatime) ?

[Brokolice]

I have a container with heavy IO (lots of reading old files). I would like to mount its root disk with noatime option.

How to do it?

Also, is there also a way how to make proxmox use noatime even on its system disk and all newly created containers?

 

[LnxBil]

I don't think that Proxmox VE has a switch for that, but create a new template with that option or use a post-install-trigger or hook to do this. I often use my own packages to customize my machines and in their post-install hook you can do such stuff too.

 

[Brokolice]

I don't think that Proxmox VE has a switch for that, but create a new template with that option or use a post-install-trigger or hook to do this. I often use my own packages to customize my machines and in their post-install hook you can do such stuff too.

Well, PVE does the mounting (/ is on /dev/mapper/pve-vm--602--disk--1 which is a block device inaccessible from the container), so I can't see what in the template could do that..?

Also, according to https://forum.proxmox.com/threads/persistent-lxc-container-options.28648/ the mount options are not implemented in PVE.
And according to https://forum.proxmox.com/threads/where-can-i-add-noatime-to-my-lxc-containers.28638/ I can't even add it to default LXC config - proxmox ignores that - which I think it shouldn't.

So the only option is to mount / somehow manually - mount a filesystem with noatime to a directory on the PVE host manually, and then set root as directory filesystem type if that's even possible.. :-(

 

[LnxBil]

So the only option is to mount / somehow manually - mount a filesystem with noatime to a directory on the PVE host manually, and then set root as directory filesystem type if that's even possible.. :-(

Or just use ZFS, there is ext4 involved, hence at least that problem does not rise again.