From 2d37c4ca8888b6451b17faa77d997b3ee7b106f1 Mon Sep 17 00:00:00 2001 From: Steven Dake Date: Tue, 21 Jun 2016 09:01:09 -0700 Subject: [PATCH] Notify operators that cinder + LVM doesn't work Cinder has closed a flaw in the design of either glance, cinder, or OpenStack in general. Whatever the case is, LVM + multi-controller doesn't work correctly. TrivialFix Change-Id: Ibe3445699cfdb1622279a85b6c4e612663d08def --- doc/cinder-guide.rst | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/doc/cinder-guide.rst b/doc/cinder-guide.rst index 825e7595ec..05b5b3b5f2 100644 --- a/doc/cinder-guide.rst +++ b/doc/cinder-guide.rst @@ -18,6 +18,16 @@ The cinder implementation defaults to using LVM storage. The default implementation requires a volume group be set up. This can either be a real physical volume or a loopback mounted file for development. +.. note :: + The Cinder community has closed a bug as WontFix which makes it + impossible for LVM to be used at all in a multi-controller setup. + The only option for multi-controller storage to work correctly at + present is via a Ceph deployment. If community members disagree + with this decision, please report the specific use case in the + Cinder bug tracker here: + `_bug 306756 `__. + + Create a Volume Group ===================== Use ``pvcreate`` and ``vgcreate`` to create the volume group. For example