On Sat, Apr 3, 2021 at 11:40 PM Chris Murphy <lists@xxxxxxxxxxxxxxxxx> wrote:
On Sat, Apr 3, 2021 at 10:42 AM Richard Shaw <hobbes1069@xxxxxxxxx> wrote:
>
> Before I submit a BZ I figured maybe some discussion was in order.
>
> As the default fs is now btrfs and it's well known to be bad for VMs, I'm surprised this wasn't already implemented.
>
It is implemented.
https://listman.redhat.com/archives/libvir-list/2020-July/msg01377.html
Applies to virt-install, virt-manager, GNOME Boxes, and Cockpit.
If you do a clean install and haven't setup a storage pool yet before
copying over VM images from some other source, they won't be nodatacow
because the enclosing directory isn't yet nodatacow.
Ahh.. That's good at least. I have a fresh system install but using an existing /home so I had to do it manually.
It should be possible, however, to mark the images folder +C even if it wouldn't affect existing images.
Thanks,
Richard
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