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

To: Luciano Rocha <strange@xxxxxxxxxxxxx>
Subject: [Xen-tools] Re: [Xen-devel] Fw: [Xen-API] status of xen api
From: Stefan Berger <stefanb@xxxxxxxxxx>
Date: Tue, 30 Oct 2007 20:41:24 -0400
Cc: xen-tools@xxxxxxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx, xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
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xen-devel-bounces@xxxxxxxxxxxxxxxxxxx wrote on 10/30/2007 11:26:14 AM:

>
> I didn't get a reply from xen-api, but I urgently need this information.
>
> Can anyone help me?
>
> Thanks.
>
> ----- Forwarded message -----
>
> Hello,
>
> I've been developing an application for managing VMs in Perl, using the
> Xen API as described in docs/xen-api.
>
> My current version of Xen is bf8eacda088f, "Added tag 3.1.2-rc1 for
> changeset 3855356c701d623daf2e8bef13dd4471f a9b3c91".
>
> However, I'm finding a lot of dificulties:
>
> * Some methods are still not implemented, like VM.name_description, but
>   those aren't very important.
>
> * 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?
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.

>
> * 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'.

>
> * In an older version of Xend (3.0.3), the host.get_log didn't escape
>   the log correctly. Is this fixed? I can't reproduce on my host, but it
>   could be something missing in my log.
>
> Is there any documentation about the correct procedure and values for:
>
> 1. creating a VM, vbd or a vif (pif & pbd?);

Have a look at the xen-api documentation 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.

   Stefan

> 2. attaching/detaching vbds/vifs from VMs.


>
> Thank you for your help.
>
> Regards,
> Luciano Rocha
>
> --
> lfr
> 0/0
> [attachment "comm.txt" deleted by Stefan Berger/Watson/IBM]
> [attachment "attzg6dn.dat" deleted by Stefan Berger/Watson/IBM]
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> Xen-devel@xxxxxxxxxxxxxxxxxxx
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