I guess ENA beat us to it :) hats of to ENA folks!
On 7/12/16 6:39 AM, Simon Weller wrote: > Wei's KVM QCOW2 snapshot PR works very well. I tested it a few months back - > It would be great to get this into 4.9.10. > > > In regards to the Ceph snapshot challenges, it is possible to emulate the > behaviour you want (sans the RAM component). We pushed a PR a couple of > months ago to enable root detach of volumes on KVM (It has been merged into > 4.7-forward, 4.8-forward and 4.9 RC). > > We use it to emulate a snapshot revert with Ceph by using createVolume > sourced from a snapshot, then detaching and reattach the root volume of a VM > with device id of 0. > This preserves the previous volume history and allows the user to switch back > and forth between different snapshots. > > > We would like a fully featured "VM + memory" Ceph based snapshot as well, but > as Wido has indicated, a lot has to happen before that will be possible and > we have more research to do in order to understand the challenges. I would > guess Redhat is going to be very interested in getting this into libvirt, as > they are obviously pushing Ceph aggressively. > > > - Si > > ________________________________ > From: Wei ZHOU <ustcweiz...@gmail.com> > Sent: Tuesday, July 12, 2016 2:25 AM > To: dev@cloudstack.apache.org > Subject: Re: [Feature Request] VM Snapshot based on KVM+Ceph > > Paul, > > If you mean VM snapshot on QCOW2, there is a PR on github for it. > > -Wei > > 2016-07-12 5:58 GMT+02:00 Paul Shadwell <p...@shadwell.ch>: > >> This is a feature that has been missing from Cloudstack since the >> beginning when using KVM as the hypervisor. >> It's been asked for many times but still no support. >> This would be a huge plus for Cloudstack if this feature was added and >> make it a much more viable product for end users. >> KVM is usually chosen because 1: it's free 2: it has many features that >> make it a much better choice for large installations. >> Many have ended up either writing their own VM snapshot solution, or >> simply hiding the icon from the customer. >> I'm surprised that after years of waiting for this feature to be added, >> it's still missing. >> I know it's not totally the Cloudstack Dev team's fault that VM Snapshots >> are missing from KVM support but I do think this is a list opportunity for >> a big win if they did something about it. >> >> Just my 2 penneth on this subject that has plagued me on a daily basis >> supporting Cloudstack installs. >> >> Regards >> Paul >> >> >>> On Jul 12, 2016, at 05:19, ilya <ilya.mailing.li...@gmail.com> wrote: >>> >>> Just FYI: >>> >>> You can ask on this list for sponsored feature development if this is >>> something that needs prompt resolution. >>> >>> Regards >>> ilya >>> >>>> On 7/8/16 7:07 PM, ??? wrote: >>>> Hi, Developers >>>> >>>> >>>> >>>> We deployed ACS+KVM+Ceph in our environment. Everything looks fine >>>> except the VM snapshot feature (not volume backup) is missing in current >>>> ACS version which seems only supported by XenServer/ESXi. >>>> >>>> >>>> >>>> Wondering if we can have this on the roadmap as well. @Wido, do you >>>> have any plan ? >>>> >>>> >>>> >>>> Thanks ! >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> private cloud2 *We Deliver Enterprise-Grade Cloud !* >>>> >>>> >> ------------------------------------------------------------------------------ >>>> >>>> *???* >>>> >>>> *Product Engineering & Innovation Center (PEIC)* >>>> >>>> *??????(??)??????* >>>> >>>> * * >>>> >>>> *????????**2679**?????????**B**?**601**?* >>>> >>>> *??:**201103* >>>> >>>> *Office: +86-21-62351222* >>>> >>>> *Mobile: +86-18602198181* >>>> >>>> >>>> >>>> >>>> >> >> >
