thks for clarifying. Will take a look @ the youtube recommended.
On September 5, 2016 at 5:32 PM Kashyap Chamarthy <kchamart@xxxxxxxxxx> wrote:
On Sat, Sep 03, 2016 at 02:39:11PM +0800, gunnar.wagner@xxxxxxxxxxxxx wrote:
hi all & @Kashyap
does this handout on
snapshots
by Kashyap Chamarthy (I believe from 2012) still apply to current
versions of libvirt-bin & qemu?Yes, as the URL indicates, it's from 2012. And, most of the content
there is valid. However, some things have changed, with recent
improvements in QEMU and libvirt. E.g. from the "blockcommit" section
in the doc, now (from QEMU 2.0) it is possible to merge down the current
active layer into base.
- ubuntu: 14.04
- qemu: 2.0.0
- libvirt-bin 1.2.2-0ubuntu13.1.17
if not, is there an updated version available somewhere?
Though I haven't updated that document to reflect current new
reality, that details mentioned there are still relevant.However, Eric Blake has done an excellent talk on backing chains,
snapshots, and their management at KVM Forum 2015.Here's the talk (slides are in the video description):
https://www.youtube.com/watch?v=etIGp12RHRE -- Backing Chain
management in QEMU and libvirt by Eric BlakeRight now mainly interested in internal snapshots (which can be taken
& removed on a running machine, if I am not mistaken)Yes, internal snapshots can be performed on a running guest (or
offline). Compare and contrast them with external snapshots, to see
what works best for your use case.--
/kashyap_______________________________________________
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