Open Stack

I know it's outside the scope of mainstream Openstack, but GridCentric provides this functionality, full memory+disk point in time snapshot.

On Oct 29, 2012, at 11:14 AM, Steve Anderson wrote:

> Hi All,
> I've been testing snapshotting in the lab and have found that i get interruptions to service when taking snapshots of the VM. I notice that depending on Vm size, this interruption lasts longer the bigger a Vm gets.
> I'm using Openstack Folsom on 12.04 but also see this with essex as well.
> 
> I am aware that this isnt snapshotting in the sense that it is a 'point in time snapshot of the Vm disk and memory contents' as is the case with other hypervisors using their management toolsets. 
> Openstack snapshotting creates a crash consistent copy of the virtual machine as a snapshot - essentially a Vm clone
> 
> So my questions are: 
> Is there anyway that i can reduce the 'pause time' experienced by a Vm during snapshotting that anyone is aware of ?Any known workarounds etc... ?
> Also, are there any plans for introducing full memory+ disk snapshot capability into Openstack for KVM at some point in the future? (Qemu/libvirt do seem to support this outside of Nova/Openstack if I'm not mistaken).
> In our environment , true snapshot capability for VMs would really clear away a big hurdle for better customer adoption
> 
> Any help or guidance would be really appreciated 
> 
> thanks for your time
> 
> Steve A
>   
> 
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