[pve-devel] training question about HA && failback

Alexandre DERUMIER aderumier at odiso.com
Wed Jun 8 18:46:07 CEST 2016


>>You can give priorities within a group, something like

>>  nodes kvm3:2,kvm2:1


Ah ok ! We were looking exactly at this !

Thanks!

----- Mail original -----
De: "dietmar" <dietmar at proxmox.com>
À: "aderumier" <aderumier at odiso.com>, "pve-devel" <pve-devel at pve.proxmox.com>, "Thomas Lamprecht" <t.lamprecht at proxmox.com>
Envoyé: Mercredi 8 Juin 2016 17:18:18
Objet: Re: [pve-devel] training question about HA && failback

> On June 8, 2016 at 5:06 PM Alexandre DERUMIER <aderumier at odiso.com> wrote: 
> 
> 
> Hi, 
> 
> my students of this week traning, have a question about HA and failback: 
> 
> 
> We have 3 host : 
> 
> kvm1 
> kvm2 
> kvm3 
> 
> 
> an HA group "kvm23" with kvm2 && kvm3 
> 
> 
> We have a vm , with HA enable in group kvm23,with "nofailback" not enabled, 
> "restricted" not enabled and vm is running on kvm3. 
> 
> 
> kvm3 crash. 
> 
> 
> the vm is restarted by HA to kvm2 
> 
> 
> kvm3 is back online. 
> 
> 
> vm does not failback to kvm3 ? 

no, because it is still within the correct group (kvm2 && kvm3 has same 
priority). 

> The documentation said that it should failback to prefered node. But what is 
> the prefered node ? any member of the group ? 

yes, any member 

> Students expected that vm fallback to last node before the crash. 

You can give priorities within a group, something like 

nodes kvm3:2,kvm2:1 


@thomas: can we update the manual page, and maybe add that to the GUI? 


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