[one-users] Automatic recover from hardware failure

[Carlos Martín Sánchez]

Hi,

On Thu, Aug 14, 2014 at 1:07 PM, Johan Kooijman <mail at johankooijman.com>
wrote:

> Hi all,
>
> I'm almost finished setting up the POC for ONE so far. One last piece I
> can't really figure out is how to recreate VM's on a different host in case
> a host fails, like hardware off the grid.
> How would I do such a thing?
>

You can enable the fault tolerance hook in oned.conf [1]. This hook will
perform the onevm delete --recreate action on the VMs of the failed host.
To avoid false positives because of network connectivity issues, use the -p
flag of the hook.

The delete-recreate action will create a new VM from the original template.
This means that the VM will have a new ID, IP, and clean disks.
We are working on a new mechanism for hosts with shared storage, to
"migrate" the failed VM to a new host keeping the current IPs, disk state,
etc.

Regards

[1]
http://docs.opennebula.org/4.8/advanced_administration/high_availability/ftguide.html

--
Carlos Martín, MSc
Project Engineer
OpenNebula - Flexible Enterprise Cloud Made Simple
www.OpenNebula.org <http://www.opennebula.org/> | cmartin at opennebula.org |
@OpenNebula <http://twitter.com/opennebula> <cmartin at opennebula.org>
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