Michael Hierweck
2019-Jan-10 10:31 UTC
Re: [libvirt-users] VM running with storage image file deleted
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-still-opened-by-some-process 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.
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