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Re: [libvirt-users] About IBM PowerVM hypervisor support



On Thu, Jul 05, 2012 at 10:50:11AM +0800, Dennis Chen wrote:
> On 07/04/2012 08:56 PM, Eduardo Otubo wrote:
> >On Wed, Jul 04, 2012 at 05:42:08PM +0800, Dennis Chen wrote:
> >>Adding Eduardo who is the author of the phyp driver...
> >>
> >>Eduardo, is the libvirtd daemon necessary for libvirt-based to
> >>manage the PowerVM node? I guess so,
> >>if it's the case, then what's the environment in the PowerVM-based
> >>node to run the libvirtd daemon, is it vios?
> >Dennis,
> >
> >libvirtd isn't necessary to manage LPARs. You just need to run virsh in
> >your own computer in order to connect to an HMC/VIOS or IVM environment.
> >
> >Any questions please feel free to ask.
> >
> >Regards,
> >
> 
> Eduardo,
> 
> Thanks for the help! I encounter an issue when trying to connect the
> remote VIOS/IVM server:
> 
> 1. The used virsh is built from 0.9.12 source code with ./configure
> --prefix=/usr --with-phyp; make; make install;
> 
> 2. When I try to connect the VIOS server with ssh, it succeeds with
> output looks like:
>     root dennis-:/home/libvirt-0.9.12# ssh padmin 10 30 56 60
>     padmin 172 30 56 60's password:
>     Last unsuccessful login: Wed Jul  4 21:22:22 CDT 2012 on ssh
> from 10.16.10.94
>     Last login: Wed Jul  4 21:23:14 CDT 2012 on /dev/pts/1 from 10.16.10.94
>     [vios:/home/padmin]
> 
> 3. My virsh runs in the local ubuntu 12.04 system, and I've executed
> the following command:
>     sudo usermod -G libvirtd -a padmin
> 
> 4. When I try connect the VIOS server with virsh, issue occurs:
> 
>     root dennis-:/home/libvirt-0.9.12# virsh -c phyp://padmin 10 30 56 60
>     Enter padmin's password for 10.30.56.60:
>     error: An error occurred, but the cause is unknown
>     error: failed to connect to the hypervisor
> 
>     root dennis-:/home/libvirt-0.9.12# virsh -c
> phyp+ssh://padmin 10 30 56 60
>     padmin 10 30 56 60's password:
>     error: End of file while reading data: bash: sh: command not
> found: Input/output error
>     error: failed to connect to the hypervisor
> 
>     some times the last command also shows error message like:
>     root dennis-:/home/libvirt-0.9.12# virsh -c
> phyp+ssh://padmin 10 30 56 60
>     padmin 10 30 56 60's password:
>     error: Cannot recv data: bash: sh: command not found: Connection
> reset by peer
>     error: failed to connect to the hypervisor
> 
> Is there any tips about this?

Sorry for the late reply.

You must connect to the HMC instead of the VIOS - VIOS commands will be
transparently passed along the HMC tunnel. You also must specify the
managed system name in the command line:

 $ virsh -c phyp://user [hmc|ivm]/managed_system

I'll try to post a patch this week to update the documentation. Any issues
please feel free to ping me in the IRC as well.

-- 
Eduardo Otubo
Software Engineer
Linux Technology Center
IBM Systems & Technology Group
Mobile: +55 19 8135 0885 
eotubo linux vnet ibm com


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