[Pacemaker] VMWare Guest as Cluster Nodes - how to do stonith

[martin.braun at icw.de]

Hi Sebastian,

> Do you have any experiences with the libvirt? It sounds very 
> promising to me. Normally a simple soap call to reboot the guest 
> would be enough to have kind of stonith.

I have some experiences with libvirt, but not yet with the ESX 
hypervisordriver. However with that driver configured you should be able 
to start|stop|reset your VM with virsh commands or even with one of the 
language bindings (e.g. python). It looks very promising to me.

> The whole topic is kind of a black whole in my opinion because there
> isn't that much information available.

You are right, the documentation of libvirt is not the best, but what I 
can recommend is the IRC support of the libvirt developers!  They once 
helped me out a great deal with libvirts virtualbox driver.


    * server: irc.oftc.net
    * port: 6667 (the usual IRC port)
    * channel: #virt

HTH,
Martin

"Koch, Sebastian" <Sebastian.Koch at netzwerk.de> wrote on 20.05.2010 
18:18:26:

> [image removed] 
> 
> Re: [Pacemaker] VMWare Guest as Cluster Nodes - how to do stonith
> 
> Koch, Sebastian 
> 
> to:
> 
> The Pacemaker cluster resource manager
> 
> 20.05.2010 18:21
> 
> Please respond to The Pacemaker cluster resource manager 
> 
> Hi Martin,
> 
> thanks for the reply. Do you have any experience with external/
> vmware? I read that it isn't compatible with ESX Hosts?
> 
> Do you have any experiences with the libvirt? It sounds very 
> promising to me. Normally a simple soap call to reboot the guest 
> would be enough to have kind of stonith.
> You are right there could be a scenario where we would need to 
> stonith the esx host but lets start with the simple things. 
> 
> The whole topic is kind of a black whole in my opinion because there
> isn't that much information available.
> 
> 
> Best Regards
> Sebastian
> 
> -----Ursprüngliche Nachricht-----
> Von: martin.braun at icw.de [mailto:martin.braun at icw.de] 
> Gesendet: Donnerstag, 20. Mai 2010 17:59
> An: The Pacemaker cluster resource manager
> Betreff: Re: [Pacemaker] VMWare Guest as Cluster Nodes - how to do 
stonith
> 
> Hi Sebastian,
> 
> 
> > guests. Does anybody have experiences or advises on how to configure 
> > stonith for vmware guests or maybe there is another solution to build 
> > a reliable virtual cluster.
> 
> See this thread:
> http://www.gossamer-threads.com/lists/linuxha/pacemaker/62850?
> search_string=Pacemaker%20in%20VMware%20guests;#62850
> 
> I am planning to experiment with libvirt (http://libvirt.org/drvesx.html
> ), so please let me know your proceedings when you go this way. 
> 
> The only problem I see is: what about the esx-hosts, isn't there a 
> scenario when you want to kill the host (and that could be rather 
> problematic)? 
> 
> 
> Best,
> Martin 
> 
> 
> 
> 
> "Koch, Sebastian" <Sebastian.Koch at netzwerk.de> wrote on 20.05.2010
> 16:13:59:
> 
> > [image removed]
> > 
> > [Pacemaker] VMWare Guest as Cluster Nodes - how to do stonith
> > 
> > Koch, Sebastian
> > 
> > to:
> > 
> > The Pacemaker cluster resource manager
> > 
> > 20.05.2010 16:16
> > 
> > Please respond to The Pacemaker cluster resource manager
> > 
> > Hi,
> > 
> > i was researching the whole vmware / stonith problem for a couple of 
> > days and i did not find any reliable information or examples on how to 

> > implement stonith with virtualized debian linux on vmware esx 4 
> > guests. Does anybody have experiences or advises on how to configure 
> > stonith for vmware guests or maybe there is another solution to build 
> > a reliable virtual cluster.
> > 
> > Any help and hints is appreciated.
> > Thanks in advance.
> > 
> > Regards,
> > Sebastian_______________________________________________
> > Pacemaker mailing list: Pacemaker at oss.clusterlabs.org 
> > http://oss.clusterlabs.org/mailman/listinfo/pacemaker
> > 
> > Project Home: http://www.clusterlabs.org Getting started: 
> > http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> 

> 
> _______________________________________________
> Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
> 
> Project Home: http://www.clusterlabs.org
> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf


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