[Zope] running Zope/Plone on a Windows Virtual Machine?

michael nt milne michael.milne at gmail.com
Wed Nov 7 10:09:46 EST 2007

yes I realise about the single point of failure. Ideally of course we'd have
separate physical servers for this. It's an intranet so security is less of
an issue. There just seem to be advantages from running virtual machines.
I'm not an expert but aren't they easier to manage, rollback and back-up?
Possibly the best idea would be to have a dev and staging as virtual
machines on one server and then the live instance on another.

Interesting that a VM service would only require the RAM that Zope requires
normally. You would naturally think that the VM service would take up quite
a bit of RAM itself?

On 11/7/07, knitti <knitti at gmail.com> wrote:
> On 11/7/07, michael nt milne <michael.milne at gmail.com> wrote:
> > ok, so you could have two virtual machines say development and also
> staging
> > which sat alongside a live production 'non virtual' instance of Zope.
> This
> > would all sit on the one physical machine. The dev and staging instances
> > would be switched off and on as required. With enough RAM and CPU would
> this
> > be a realistic set-up for a service?
> >
> Yes. Here are the implications:
> - the hardware is your single point of complete failure
> - the whole machine would share its performance among native and virtual
> instances, so staging and development will have an impact on the
> production
> instance
> - if you production instance gets compromised, its not far for
> intruders to staging/development
> - the other way round (atack on zope instance, then attack on vm to
> reach the host)
> is pobably not very much harder
> why don't you just run 3 zope instances on the host? If its a pure
> zope application,
> then they won't interfere with each other. Although you can't upgrade zope
> idependently then, its in any case better resource-wise.
> --knitti

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