[Pacemaker] fencing best practices for virtual environments

[Lars Marowsky-Bree]

On 2012-09-10T10:45:30, Alberto Menichetti <albmenichetti at tai.it> wrote:

> thank you for the quick response.
> Maybe SPOF is not the best definition, but when the vcenter is
> unavailable the safety of my data is not guaranteed.

The safety remains guaranteed; the availability of your service wouldn't
be ;-)

> >>The fecing device I'd like to use is sdb.
> >If you have a working SBD setup, you do not need the external/vcenter
> >plugin any more.
> What about using 2 different fencing mechanisms?

But why? It doesn't provide any benefit.

> Do you think it could introduce some problems in the cluster or is
> it a suggested/supported solution?
> I'd like to use external/vcenter as first choice and rely on sdb
> only if the first stonith mechanism fails (for example, because of
> the vcenter unavailability).

Why?


Regards,
    Lars

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