[PVE-User] HA Fencing

Mark Adams mark at openvs.co.uk
Mon Dec 4 19:51:04 CET 2017


Hi,

On 17 November 2017 at 10:55, Thomas Lamprecht <t.lamprecht at proxmox.com>
wrote:

> Hi,
>
> On 11/16/2017 07:20 PM, Mark Adams wrote:
> > Hi all,
> >
> > It looks like in newer versions of proxmox, the only fencing type advised
> > is watchdog. Is that the case?
> >
>
> Yes, since PVE 4.0 watchdog fencing is the norm.
> There is a patch set of mine which implements the use of external fence
> device,
> but it has seen no review. I should probably dust it up, look over it and
> re send
> it again, it's about time we finally get this feature.
>

I think you should definitely get this feature in - I would even say it is
necessary for an enterprise HA setup?


> > Is it still possible to do PDU fencing as well? This should enable us to
> be
> > able to fail over faster as the fence will not fail if the machine has no
> > power right?
> >
>
> No, at the moment external fence devices are not integrated.
> You can expect an faster recovery with external fence devices, at least in
> simple setups (i.e., not multiple fence device hierachy)
>
> cheers,
> Thomas
>


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