On 2013-02-25T11:42:46, "Lentes, Bernd" <bernd.len...@helmholtz-muenchen.de> wrote:
Hi Bernd, > in the german IT newspaper "Linux-Magazin" 2/13 was an article, which says > that the future of DLM (Distributed Lock Manager) is unclear. > I'd like to create a HA cluster with two nodes, accessing concurrently one FC > SAN with OCFS2. I need DLM. > I wonder that the future is unclear because, afaik, DLM is integrated in the > kernel. If it is not properly maintained, of course i would not like to use > it. The article is a bit ... exaggerating. The in-kernel DLM of course continues to be mainainted, and OCFS2 (in user-space mode) will continue to consume it too. (Just like GFS2.) It also accusses SLE HA of sticking to an old DLM version, which isn't true either - it's true we backport changes selectively (and can't break the wire protocol, which affects the controld user-space code we can use there), but that's the whole point of a "stable" enterprise distribution. It's a bit alarmist. But the author should be participating on this list, that should be a fruitful discussion ;-) Regards, Lars -- Architect Storage/HA SUSE LINUX Products GmbH, GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer, HRB 21284 (AG Nürnberg) "Experience is the name everyone gives to their mistakes." -- Oscar Wilde _______________________________________________ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org