On 10.01.19 11:19, Roosen, Nicolas wrote:
Hello, I have a strange issue I'd like to have some insights on.
We have 2 running VM, the storage pool is over NFS. Unfortunately, the backend storage folder has been deleted (so the image file in it as well, obviously) ...
Yet, the 2 VM are still up and running, with their root filesystem being mounted "rw".
- how does that work? I was expecting that with the file image being deleted, the VM would not work at all.
The file was "unlinked" but still exists. https://superuser.com/questions/283102/how-to-recover-deleted-file-if-it-is-... I would consider doing a backup from inside the VM, too.
- since the VM is still running, is there a way to create a snapshot of it in order to re-create the image file on another storage pool ? I'm currently exploring "virsh snapshot-create-as ...", but if access to the image file is needed, it will fail.
Note: the file will be lost, when it is released by the QEMU process.