[ovirt-users] Deploying hosted engine on second host with different CPU model

[Simone Tiraboschi]

----- Original Message -----
> From: "Itamar Heim" <iheim at redhat.com>
> To: "Andrew Lau" <andrew at andrewklau.com>, "George Machitidze" <gmachitidze at greennet.ge>
> Cc: "users" <Users at ovirt.org>
> Sent: Tuesday, July 22, 2014 12:09:54 AM
> Subject: Re: [ovirt-users] Deploying hosted engine on second host with different CPU model
> 
> On 07/18/2014 02:05 AM, Andrew Lau wrote:
> > I think you should be able specify this within the ovirt-engine, just
> > modify the cluster's cpu compatibility. I hit this too, but i think I
> > just ended up provisioning the older machine first then the newer ones
> > joined with the older model
> 
> 1. first the host needs to have a compatible cpu model.
>     what does 'vdsClient -s 0 getVdsCaps | grep -i flag' returns

Than can you also check the presence of vmx and nx flags in /proc/cpuinfo ?

Recently we solved a bug regarding that: https://bugzilla.redhat.com/show_bug.cgi?id=1119145
Hosted engine deploy didn't checked the status of nx flag but some CPU requires also to enable NX to properly support virtualization.


> 2. cluster cpu level is easy, but hosted engine vm config resides on the
> disk, and needs to be manually edited in this case iirc.
> 
> >
> > On Thu, Jul 17, 2014 at 11:05 PM, George Machitidze
> > <gmachitidze at greennet.ge> wrote:
> >> Hello,
> >>
> >> I am deploying hosted engine (HA) on hosts with different CPU models on
> >> one
> >> of my oVirt labs.
> >>
> >> Host have different CPU's or there is also the problem: virtualization
> >> platform cannot detect CPU at all, "The following CPU types are supported
> >> by
> >> this host:" is empty:
> >>
> >>
> >> 2014-07-17 16:51:42 DEBUG
> >> otopi.plugins.ovirt_hosted_engine_setup.vdsmd.cpu
> >> cpu._customization:124 Compatible CPU models are: []
> >>
> >> Is there any way to override this setting and use CPU of old machine for
> >> both hosts?
> >>
> >> ex.
> >> host1:
> >>
> >> cpu family      : 6
> >> model           : 15
> >> model name      : Intel(R) Xeon(R) CPU            5160  @ 3.00GHz
> >> stepping        : 11
> >>
> >> host2:
> >>
> >> cpu family      : 6
> >> model           : 42
> >> model name      : Intel(R) Xeon(R) CPU E31220 @ 3.10GHz
> >> stepping        : 7
> >>
> >>
> >>
> >> [root at ovirt2 ~]# hosted-engine --deploy
> >> [ INFO  ] Stage: Initializing
> >>            Continuing will configure this host for serving as hypervisor
> >>            and
> >> create a VM where you have to install oVirt Engine afterwards.
> >>            Are you sure you want to continue? (Yes, No)[Yes]:
> >> [ INFO  ] Generating a temporary VNC password.
> >> [ INFO  ] Stage: Environment setup
> >>            Configuration files: []
> >>            Log file:
> >> /var/log/ovirt-hosted-engine-setup/ovirt-hosted-engine-setup-20140717165111-7tg2g7.log
> >>            Version: otopi-1.2.1 (otopi-1.2.1-1.el6)
> >> [ INFO  ] Hardware supports virtualization
> >> [ INFO  ] Stage: Environment packages setup
> >> [ INFO  ] Stage: Programs detection
> >> [ INFO  ] Stage: Environment setup
> >> [ INFO  ] Stage: Environment customization
> >>
> >>            --== STORAGE CONFIGURATION ==--
> >>
> >>            During customization use CTRL-D to abort.
> >>            Please specify the storage you would like to use (nfs3,
> >> nfs4)[nfs3]:
> >>            Please specify the full shared storage connection path to use
> >> (example: host:/path): ovirt-hosted:/engine
> >>            The specified storage location already contains a data domain.
> >>            Is
> >> this an additional host setup (Yes, No)[Yes]?
> >> [ INFO  ] Installing on additional host
> >>            Please specify the Host ID [Must be integer, default: 2]:
> >>
> >>            --== SYSTEM CONFIGURATION ==--
> >>
> >> [WARNING] A configuration file must be supplied to deploy Hosted Engine on
> >> an additional host.
> >>            The answer file may be fetched from the first host using scp.
> >>            If you do not want to download it automatically you can abort
> >>            the
> >> setup answering no to the following question.
> >>            Do you want to scp the answer file from the first host? (Yes,
> >> No)[Yes]:
> >>            Please provide the FQDN or IP of the first host: ovirt1.test.ge
> >>            Enter 'root' user password for host ovirt1.test.ge:
> >> [ INFO  ] Answer file successfully downloaded
> >>
> >>            --== NETWORK CONFIGURATION ==--
> >>
> >>            The following CPU types are supported by this host:
> >> [ ERROR ] Failed to execute stage 'Environment customization': Invalid CPU
> >> type specified: model_Conroe
> >> [ INFO  ] Stage: Clean up
> >> [ INFO  ] Stage: Pre-termination
> >> [ INFO  ] Stage: Termination
> >>
> >> --
> >> BR
> >>
> >> George Machitidze
> >>
> >>
> >> _______________________________________________
> >> Users mailing list
> >> Users at ovirt.org
> >> http://lists.ovirt.org/mailman/listinfo/users
> >>
> > _______________________________________________
> > Users mailing list
> > Users at ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/users
> >
> 
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