[sheepdog-users] 0.7.5 and older qemu?

[Liu Yuan]

On Fri, Nov 22, 2013 at 03:52:53PM +0800, Liu Yuan wrote:
> On Fri, Nov 22, 2013 at 08:02:22AM +0100, Gerald Richter - ECOS wrote:
> > Hi,
> > 
> > thanks for your feedback. I don't need erasure coding (yet), but I am not sure what you mean by online snapshots and I didn't find anything on the net. Does this making a snapshot of a running vm? I though this is already possible with older versions or does it mean something different?
> > 
> 
> Yes, snapshot the disk of running VM by 'qemu-img snapshot' or 'collie vdi snapshot'
> QEMU has 3 kinds of snapshot,
>      - live disk and memory snapshot of running VM by 'qemu monitor vmsave',
>        similar to laptop suspend
>      - snapshot of disk when VM is powered off by qemu-img or 'collie vdi snapshot'
>      - snapshot of disk of running VM <--- I meant this.
> 

Well, another charm for v1.7 QEMU is that, we have another feature, auto-reconnect,
that is, when daemon of sheep is down for whatever reason(crash, upgrade ...),
you don't need to shutdown VM while you restart sheep daemon. For old QEMU, you
have to restart VM when sheep daemon dies.

Thanks
Yuan