HCI cluster (Ceph)

[dya]

I don't know when, but sometimes the virtual machine definition file (xml) disappears.

Are there any restrictions?

The things I checked and the results are as follows:

・virsh list --all
→The corresponding virtual machine is not displayed
・ls -l /etc/libvirt/qemu
→There is no xml file for the corresponding virtual machine
・rbd ls -lp mvm-volumes
→There is an RDB image for the corresponding virtual machine

※I apologize if it is difficult to understand because it is machine translated.

[maria456]

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@dya ktag orgwrote:

I don't know when, but sometimes the virtual machine definition file (xml) disappears.

Are there any restrictions?

The things I checked and the results are as follows:

・virsh list --all
→The corresponding virtual machine is not displayed
・ls -l /etc/libvirt/qemu
→There is no xml file for the corresponding virtual machine
・rbd ls -lp mvm-volumes
→There is an RDB image for the corresponding virtual machine

※I apologize if it is difficult to understand because it is machine translated.

---

The disappearance of VM XML definition files in `/etc/libvirt/qemu` is likely due to external management tools/scripts, accidental manual deletion, or less commonly, software bugs or file system issues, despite the RBD image existing. Investigate system logs, user activity, and any automation tools used for VM management. Implement regular backups of the `/etc/libvirt/qemu` directory and consider enabling audit logging. Recovery involves restoring the XML from backup or manually creating a new one using `virsh define`.

[AballahSonDi]

So it seems like you at least have a ceph cluster up and running I wish I could get my test environment that far.  Getting frustrated with the poor documentation around this stuff.