[one-users] HA ONED / SUNSTONE considerations

[Gabriel Cain]

I'm doing it pretty similarly to you... My setup:

* Two VMs, one-head1, one-head2.
* They share a floating IP address between each other.  It is set up on the
active node only.
* They share a DRBD volume where /etc/one, /var/lib/one, and other goodies
are symlinked.
* They're VMs running on separate network domains within my infrastructure
* They're currently manual-failover + monitoring and alerting
* Sunstone/oned/econe run on only one at a time

-G


On Fri, Oct 11, 2013 at 3:59 AM, Stefan Kooman <stefan at bit.nl> wrote:

> Hi list,
>
> I'm planning for a HA ONED setup, i.e. HA "Frontend"
> (oned/mm_sched/onecctd), sunstone (Load-Balanced) and hosts. Initially I
> was planning to
> use hardware for the different components, something along the lines of:
>
>   sunstone                         sunstone
>      |                                |
>      |-------------  LB  --------------
>      |                                |
>      |                                |
>      |                                |
>      |                                |
>     oned                            oned
>      |                                |
>      |-------------  HA  --------------
>      |     (pacemaker / corosync)     |
>      |                                |
>      |                                |
> host1 ------ host2 ------- host3 ------- host4
>
> With hosts, oned en sunstone each on seperate dedicated physical boxes.
> That's
> quite a bit of hardware doing mostly "nothing". Especially if you setup
> several independant clouds like this. Instead of using dedicated
> physical hardware, a setup consisting of VM's running on top of (two of)
> the hosts
> might be a more efficient possibility. Do you have any experience with
> such a
> setup? Do you see any big drawbacks in using VM's instead of hardware?
> Do you want to share your HA setup design considerations with me?
>
> Thanks,
>
> Gr. Stefan
>
> --
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