Hi, My 2 cents,
You need to be able to form a quorum to keep writes going in case of a split brain scenario, if that is important to you and you can/prepared to pay for it, if its data protection only then a fail safe to read only is all you need. So 3 machines a quorum is 2, 15 machines the quorum is 8. I am actually building 1 at the moment with gluster as the backend so the main site will have 2 and DR one. regards Steven ________________________________________ From: Digimer <li...@alteeve.ca> Sent: Tuesday, 8 December 2015 10:00 a.m. To: m...@sys4.de; Cluster Labs - All topics related to open-source clustering welcomed Subject: Re: [ClusterLabs] Multisite Clusters: how many servers? On 07/12/15 03:57 PM, Michael Schwartzkopff wrote: > Hi, > > it is possible / advisable to set up a multisite cluster with booth with one > server at each site? > > So having three servers all together? > > Mit freundlichen Grüßen, > > Michael Schwartzkopff As I understand it, no. You need a cluster on each site to be able to trust that a lost site behaves predictably. -- Digimer Papers and Projects: https://alteeve.ca/w/ What if the cure for cancer is trapped in the mind of a person without access to education? _______________________________________________ Users mailing list: Users@clusterlabs.org http://clusterlabs.org/mailman/listinfo/users Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org _______________________________________________ Users mailing list: Users@clusterlabs.org http://clusterlabs.org/mailman/listinfo/users Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org