From 576dce03f0eeedeefdb4619de92e2dbe3241b6b4 Mon Sep 17 00:00:00 2001 From: John Wilkins Date: Wed, 21 Aug 2013 11:01:48 -0700 Subject: [PATCH] doc: Clarified quorum requirements. fixes: #5412 Signed-off-by: John Wilkins --- doc/rados/deployment/ceph-deploy-mon.rst | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/doc/rados/deployment/ceph-deploy-mon.rst b/doc/rados/deployment/ceph-deploy-mon.rst index fcd25756e6472..a6123e596cad6 100644 --- a/doc/rados/deployment/ceph-deploy-mon.rst +++ b/doc/rados/deployment/ceph-deploy-mon.rst @@ -13,10 +13,9 @@ only install one monitor per host.** For high availability, you should run a production Ceph cluster with **AT LEAST** three monitors. Ceph uses the Paxos algorithm, which requires a -consensus among the majority of monitors in a quorum. You can establish a -monitor quorum with only one monitor; however, you can not determine a majority -with two monitors. A majority of monitors must be counted as such: 1:1, 2:3, -3:4, 3:5, 4:6, etc. +consensus among the majority of monitors in a quorum. With Paxos, the monitors +cannot determine a majority for establishing a quorum with only two monitors. A +majority of monitors must be counted as such: 1:1, 2:3, 3:4, 3:5, 4:6, etc. See `Monitor Config Reference`_ for details on configuring monitors. -- 2.39.5