I have a production cluster, using two vm on esx cluster, for stonith i'm using sbd, everything work find
2013/3/25 Angel L. Mateo <ama...@um.es> > Hello, > > I am newbie with pacemaker (and, generally, with ha clusters). I > have configured a two nodes cluster. Both nodes are virtual machines > (vmware esx) and use a shared storage (provided by a SAN, although access > to the SAN is from esx infrastructure and VM consider it as scsi disk). I > have configured clvm so logical volumes are only active in one of the nodes. > > Now I need some help with the stonith configuration to avoid data > corrumption. Since I'm using ESX virtual machines, I think I won't have any > problem using external/vcenter stonith plugin to shutdown virtual machines. > > My problem is how to avoid split brain situation with this > configuration, without configuring a 3rd node. I have read about quorum > disks, external/sbd stonith plugin and other references, but I'm too > confused with all this. > > For example, [1] mention techniques to improve quorum with scsi > reserve or quorum daemon, but it didn't point to how to do this pacemaker. > Or [2] talks about external/sbd. > > Any help? > > PS: I have attached my corosync.conf and crm configure show outputs > > [1] http://techthoughts.typepad.**com/managing_computers/2007/** > 10/split-brain-quo.html<http://techthoughts.typepad.com/managing_computers/2007/10/split-brain-quo.html> > [2] > http://www.gossamer-threads.**com/lists/linuxha/pacemaker/**78887<http://www.gossamer-threads.com/lists/linuxha/pacemaker/78887> > > -- > Angel L. Mateo Martínez > Sección de Telemática > Área de Tecnologías de la Información > y las Comunicaciones Aplicadas (ATICA) > http://www.um.es/atica > Tfo: 868889150 > Fax: 868888337 > > _______________________________________________ > 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 > > -- esta es mi vida e me la vivo hasta que dios quiera
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