Re: [pve-devel] Two-Node HA

FYI, there was support to use a quorum Disk in 3.X: https://pve.proxmox.com/wiki/Two-Node_High_Availability_Cluster But corosync developers decided to drop support for that. AFAIK this technology is a leftover from old days, and nobody was happy with that complex and error prone software. That

Re: [pve-devel] Two-Node HA

Hello, another option for 2-Node HA would be what HA-Lizzard for XenServer does. Basically they test if some external ip`s (e.g. storage/switches) can be reached to ensure quorum/majority in the two-node setup. This is maybe not the best solution but way better than running into split-brain.

Re: [pve-devel] Two-Node HA

Hi Andreas, On 09/28/2016 05:53 PM, Andreas Steinel wrote: Hi Thomas, Thank you for your time and your answer. I wonder why e.g. an Oracle Real Application Cluster (RAC) works so well with a 2 node in a HA setup. We deployed 50+ clusters in the last years and never had a split-brain-like

Re: [pve-devel] Two-Node HA

On Wed, Sep 28, 2016 at 6:30 PM, Michael Rasmussen wrote: > If you search the forum you will find a step guide for using a rpi as third > node. Yes, I know that. ___ pve-devel mailing list pve-devel@pve.proxmox.com

Re: [pve-devel] Two-Node HA

If you search the forum you will find a step guide for using a rpi as third node. On September 28, 2016 5:53:05 PM GMT+02:00, Andreas Steinel wrote: >Hi Thomas, > >Thank you for your time and your answer. > >I wonder why e.g. an Oracle Real Application Cluster (RAC) works

Re: [pve-devel] Two-Node HA

Hi Thomas, Thank you for your time and your answer. I wonder why e.g. an Oracle Real Application Cluster (RAC) works so well with a 2 node in a HA setup. We deployed 50+ clusters in the last years and never had a split-brain-like situation. Rolling-updates, as well as occasional host crashes are

Re: [pve-devel] Two-Node HA

Hi, QDisks are not ideal and those itself will probably not supported by Proxmox VE, also I would really love top see the term "two node HA" vanish, as its only marketing talk and is technically simply not possible (sadly basic rules of our universe make it impossible), they call a setup with

[pve-devel] Two-Node HA

Hi, I'd like to ask if there are any plans to use e.g. the shared storage as a quorum/voting disk like the oracle grid infrastructure uses it to get a two node ha cluster (for almost a decade). This obviously only works for NAS or SAN storage. Best, Andreas