Re: [Xen-devel] Fw: [Xen-API] status of xen api

[Luciano Rocha <strange@xxxxxxxxxxxxx>]

On Tue, Oct 30, 2007 at 08:41:24PM -0400, Stefan Berger wrote:
> > * I can't get the VDIs for a VBD (nor the VDIs for a SR). How am I
> >   supposed to get the backend of a VM's vbd?
> > 
> >   If I call the VBD.get_VDI, I get an empty value for the ref
> >   (communication attached).
> 
> Is this a domain that happens to only have a ramdisk?

No, it's a domain with a single block (and net) device.

> If you create a domain with access to a disk and use xm in xen-api mode 
> then does this still happen?  To do this you have to activate the 'server' 
> node in /etc/xen/xm-config.xml and add (xen-api-server (( 0.0.0.0:9363 
> none ))) to /etc/xen/xend-config.sxp.

Thanks for the tip about xen/xend-config.sxp, I'll be able, at least, to
capture and analyze the traffic. ;)

And you're correct. With xm in xen-api mode, the newly created VM has
the correct VDI entry.

> > 
> > * my network object has no PIFs, is this normal?
> 
> Not sure about this, though I'd say that the network should have a list of 
> PIFs with at least one PIF in it, which represents 'peth0'.

Hm, I personally don't use peth0. I use a bridge with IP address and
attach the real eth0 to the bridge with my distro's usual configuration
scripts.

So then, without peth0, this is expected?

> > 1. creating a VM, vbd or a vif (pif & pbd?);
> 
> Have a look at the xen-api documentation

I have following the docs/xen-api specification in xen-testing.hg, and I
even made a condensed version:
<http://ftp.gil.di.uminho.pt/pub/users/strange/xenapi.pdf>

> and on the xen-api mailing list 
> where people have previously posted their examples, even though it might 
> have a flaw somewhere. Even though this one here might be for PHP, it 
> shows what parameters need to be passed.
> 
> http://lists.xensource.com/archives/html/xen-api/2007-10/msg00003.html
> 
> Maybe this here is also helpful:
> 
> http://xen.begi.net:46984/markup/xen-unstable.hg/tools/examples/xeninfo.pl
> 
> 
>    I hope I could help.

You helped a lot, thanks.

-- 
lfr
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