On Wednesday, August 21, 2013 3:49:09 PM CDT, g.da...@assyoma.it wrote:
On 2013-08-21 21:40, Brian Jackson wrote:
On Wednesday, August 21, 2013 6:02:31 AM CDT,
g.da...@assyoma.it wrote: ...
Hi Brian,
thank you for your reply.
As I googled extensively without finding anything, I was
prepared to a similar response.
Anyway, from what I understand, Qemu already use a similar
approach (tracking dirty memory pages) when live migrating
virtual machines to another host.
So what is missing is the "glue code" between Qemu and
KVM/libvirt stack, right?
Live migration isn't what you asked about (at least not from what I
understood). Live migration is just moving a VM from one host to another. That
is definitely supported by libvirt. Having a constantly running lock-step sync
of guest state is what Qemu/KVM does not support. So with Qemu's current live
migration abilities, if HostA dies, all it's guests will have downtime while
they are restarted on other hosts.
Thanks again.
...
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