[PVE-User] Pve4 two nodes HA

Dietmar Maurer dietmar at proxmox.com
Thu Oct 8 19:49:20 CEST 2015

> > quorum {
> >   expected_votes: 1 -->> HERE
> >   provider: corosync_votequorum
> >   two_node: 1
> > }
> While you can use such config, this is totally unsafe, unsupported
> and dangerous - this simply makes no sense for me.

Please note that fencing on PVE 4.X only queries quorum, so it 
never trigger that way. Also, the watchdog based fencing has a delay
of about 60 seconds - during that (long) time both nodes could write
/etc/pve, so it is likely you run into a split-brain situation!

I hope that explains why this is dangerous.

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