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Reply-To: dev@cloudstack.apache.org
Date: Tue, 12 Jul 2016 09:15:12 +0200 (CEST)
From: Wido den Hollander <wido@widodh.nl>
To: dev@cloudstack.apache.org, Paul Shadwell <paul@shadwell.ch>
Message-ID: <492403453.807.1468307714068@ox.pcextreme.nl>
In-Reply-To: <283D553A-CA5C-41B6-A97E-44BCC51DE876@shadwell.ch>
References: <007701d1d986$9769e680$c63db380$@teamsun.com.cn>
 <642ae06b-84f2-0228-4aa3-9194956bb6a4@gmail.com>
 <283D553A-CA5C-41B6-A97E-44BCC51DE876@shadwell.ch>
Subject: Re: [Feature Request] VM Snapshot based on KVM+Ceph
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archived-at: Tue, 12 Jul 2016 07:15:29 -0000


> Op 12 juli 2016 om 5:58 schreef Paul Shadwell <paul@shadwell.ch>:
>=20
>=20
> This is a feature that has been missing from Cloudstack since the beginni=
ng when using KVM as the hypervisor.=20
> It's been asked for many times but still no support.=20
> This would be a huge plus for Cloudstack if this feature was added and ma=
ke it a much more viable product for end users.=20
> KVM is usually chosen because 1: it's free 2: it has many features that m=
ake it a much better choice for large installations.=20
> Many have ended up either writing their own VM snapshot solution, or simp=
ly hiding the icon from the customer.=20
> I'm surprised that after years of waiting for this feature to be added, i=
t's still missing.=20
> 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.=20
>=20
> Just my 2 penneth on this subject that has plagued me on a daily basis su=
pporting Cloudstack installs.=20
>=20

The problem is that KVM ONLY supports full VM snapshots with QCOW2 and not =
with RBD. You have to store the memory contents somewhere and only QCOW2 su=
pports it.

An true, it's a lack of time. A lot of stuff needs to be done.

Wido

> Regards
> Paul
>=20
>=20
> > On Jul 12, 2016, at 05:19, ilya <ilya.mailing.lists@gmail.com> wrote:
> >=20
> > Just FYI:
> >=20
> > You can ask on this list for sponsored feature development if this is
> > something that needs prompt resolution.
> >=20
> > Regards
> > ilya
> >=20
> >> On 7/8/16 7:07 PM, =E5=90=95=E6=B5=B7=E8=9B=9F wrote:
> >> Hi,  Developers
> >>=20
> >>=20
> >>=20
> >> We deployed ACS+KVM+Ceph in our environment.  Everything looks fine
> >> except the VM snapshot feature (not volume backup) is missing in curre=
nt
> >> ACS version which seems only supported by XenServer/ESXi.
> >>=20
> >>=20
> >>=20
> >> Wondering if we can have this on the roadmap as well.  @Wido, do you
> >> have any plan ?
> >>=20
> >>=20
> >>=20
> >> Thanks !
> >>=20
> >>=20
> >>=20
> >>=20
> >>=20
> >>=20
> >>=20
> >>=20
> >>=20
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