[ovirt-users] oVirt Engine redundant ?

[Simone Tiraboschi]

On Tue, Oct 13, 2015 at 9:24 AM, Nico <gluster at distran.org> wrote:

> Le 2015-10-13 09:08, Nico a écrit :
>
> Le 2015-10-12 09:17, Nico a écrit :
>
> Le 2015-10-12 09:09, Barak Korren a écrit :
>
>
>
> What that procedure describes is backing up an existing engine,
> installing a new one and then restoring the backed up data into it.
> This was probably written to describe migration from a stand-alone
> engine host, not an AllInOne.
> Theoretically this should work for your setup, but I am not sure if
> the new hosted engine will be able to properly use the AllInOne node
> as a hypervisor (it would probably depend on the copied configuration
> containing enough details to allow the engine to connect to it over
> the network. you will probably at the very last have to shut down the
> existing engine before starting up the hosted engine)
> I would suggest doing as many backups as you can before starting, and
> performing the H.E. setup on a host that wasn't used by the existing
> engine, that way if it fails you can just shut it down and bring your
> old engine back up.
>
> I got a backup running at this moment,
> scping /gluster/ovirt/d44ee4b0-8d36-467a-9610-c682a618b698/images/ to a
> third device.
>
> So, once done, i'll give a shot on the node2 which is running only VDSM as
> Host agent.
>
> Hope all will be fine !
>
> Hi,
>
> My backups are done, i'm now processing the installation for having the
> engine in a VM but i got the following error at the first step:
>
>
>
>
>
> Ok i put the node2 in maintenance and it continues but i got a new error:
>
>
> root at devnix-virt-master02 ~]# hosted-engine --deploy
> [ INFO ] Stage: Initializing
> [ INFO ] Generating a temporary VNC password.
> [ INFO ] Stage: Environment setup
> 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]:
> Configuration files: []
> Log file:
> /var/log/ovirt-hosted-engine-setup/ovirt-hosted-engine-setup-20151013091823-7760bz.log
> Version: otopi-1.3.2 (otopi-1.3.2-1.el7.centos)
> [ INFO ] Hardware supports virtualization
> [ INFO ] Bridge ovirtmgmt already created
> [ 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 (iscsi, nfs3, nfs4)[nfs3]:
> Please specify the full shared storage connection path to use (example:
> host:/path): ovirt01:/share_nfs
> [ INFO ] Installing on first host
> Please provide storage domain name. [hosted_storage]:
> Local storage datacenter name is an internal name and currently will not
> be shown in engine's admin UI.
> Please enter local datacenter name [hosted_datacenter]:
>
> --== SYSTEM CONFIGURATION ==--
>
>
> --== NETWORK CONFIGURATION ==--
>
> iptables was detected on your computer, do you wish setup to configure it?
> (Yes, No)[Yes]: No
> Please indicate a pingable gateway IP address [176.31.117.254]:
>
> --== VM CONFIGURATION ==--
>
> Please specify the device to boot the VM from (cdrom, disk, pxe) [cdrom]:
> Please specify an alias for the Hosted Engine image [hosted_engine]:
> The following CPU types are supported by this host:
> - model_Nehalem: Intel Nehalem Family
> - model_Penryn: Intel Penryn Family
> - model_Conroe: Intel Conroe Family
> Please specify the CPU type to be used by the VM [model_Nehalem]:
> Please specify path to installation media you would like to use [None]:
> [ ERROR ] Failed to execute stage 'Environment customization': [Errno 2]
> No such file or directory: '/None'
> [ INFO ] Stage: Clean up
> [ INFO ] Generating answer file
> '/var/lib/ovirt-hosted-engine-setup/answers/answers-20151013092118.conf'
> [ INFO ] Stage: Pre-termination
> [ INFO ] Stage: Termination
> [root at devnix-virt-master02 ~]#
>
> I don't understand what is it expecting for the PATH ? i've no idea what
>  INSTALLATION MEDIA is about.
>
> Could you please give me a clue ?
>

You choose  to create your new engine VM booting from a CDRom image so you
have to specify the path of that ISO image (a supported RHEL, Centos or
Fedora release) on your system.



> Thanks
> regards
> Nico
>
>
>
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