[node-devel] about the virtual machine define XML file's persistence

[Fabian Deutsch]

Am Mittwoch, den 31.07.2013, 04:10 +0000 schrieb Bohai (ricky):
> Hi,
> 
> I have a question about the virtual machine's define XML's persistence.
> 
> As we know, if we use "virsh define" to define a virtual machine, libvirt will put the XML to 
> the path "/etc/libvirt/qemu".
> 
> Normal case, even the system is rebooted, the XML file still exist.
> But in the ovirt-node case , because of the system is stateless, if we reboot the system,
> the defined virtual machine XML file will disappear.
> 
> How to solve the problem, any hint? 
> Or this issue should be considered and solved in the upper level(Like vdsm? Or ovirt-engine?).
> Or customize the libvirt to make it to put the XML to a persist path(like /config or /data?)

You can use the
persist <filename>
command on a shell to persist (nearly) all files on the filesystem.

The persist command is the way to store changes on a writable
filesystem. The changed files are then bind-mounted during the boot
process to the correct location in the root-fs.

- fabian

> I apologize if I am missing something very obvious.
> 
> Best regards to you.
> Ricky
> 
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