[Fedora-xen] Xen Documentation

[Emre ERENOGLU]

Yes, but I don't have the same flexibility of options in the libvirt
implementation.

Emre

On Fri, May 30, 2008 at 2:32 PM, Daniel P. Berrange <berrange at redhat.com>
wrote:

> On Thu, May 29, 2008 at 08:06:32PM -0400, Gast?n Keller wrote:
> > On Thu, May 29, 2008 at 7:53 PM, Emre ERENOGLU <erenoglu at gmail.com>
> wrote:
> > > Hi Gaston,
> > >
> > > It's true that some documentation is outdated. However, for the
> "/etc/xen"
> > > isssue, my custom Xen 3.2 setup still stores ( and I do store there
> also) my
> > > config files there.
> > >
> > > Maybe what you're saying is "Fedora Specific" which I could understand
> as
> > > it's fedora mailing list.
> >
> > _The Fedora team has followed the Xensource model and begun to store
> > all VM configuration details in a database, referred to as xenstore._
>
> No, xenstore only holds information about active VMs. The persistent VM
> config
> is managed by XenD itself, and stored in files under /var/lib/xend.
>
> > Source:
> http://enterpriselinuxlog.blogs.techtarget.com/2007/06/07/fedora-7-xen-first-look/
> >
> > Then, you might be right. I interpreted it was a modification from
> > Xen, not from Fedora (previously introduced by Xensource).
>
> This was all implemented by upstream Xen. Libvirt probes for this
> capability
> in XenD and if it finds it, it will make use of it, since libvirt wants to
> be able to manage inactive VMs too. Since Fedora 7 was the first to ship
> this capability in Xen, it was the first release where libvirt would enable
> this inactive domain management.
>
> > So, what is the advantage behind this movement?
>
> The key reason for this was to allow XenD the ability to manage inactive
> domains. So all its APIs for modifying VM configs now work for running
> and inactive VMs. This is impossible for XenD if using /etc/xen. This is
> why 'xm list' won't show you configs stored in /etc/xen.
>
> Dan.
> --
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>



-- 
Emre
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