On 24/04/2013, at 1:57 AM, Angel L. Mateo <[email protected]> wrote: > El 22/04/13 13:01, Lars Marowsky-Bree escribió: >> On 2013-04-22T11:14:14, "Angel L. Mateo" <[email protected]> wrote: >> >>> The problem I have is that I have firstly configured the cluster with >>> CLVM, but with this I can't create snapshots of my volumes, which is >>> required for backups. >>> >>> But is this CLVM really necessary? Or it is enough to configure LVM >>> with fencing and stonith? >> >> If you're happy with having each volume group being active/passive, yes, >> a normal LVM resource with fencing etc is sufficient. >> >> cLVM is only needed if you need to concurrently manage a volume group >> cluster-wide. The choice can be made per VG. >> > Then, I want to configure cman + corosync + pacemaker (as described at > 1). With this in mind which fence mechanism should I use? fence_scsi (my > shared storage is in fibre channel scsi san)? Or the pcmk fence is > enough?
You need both. The "pcmk fence" just redirects the request from cman to pacemaker - which then needs a real device to do the job. > Where can I found documentation for fence mechanisms? > > In other configuration scenarios (2) using clvm, a dlm and sfex (3) > resource is also created. Should I configure it too? > > Thanks for your help. > > 1. http://clusterlabs.org/quickstart-ubuntu.html > 2. > https://www.suse.com/documentation/sle_ha/book_sleha/?page=/documentation/sle_ha/book_sleha/data/book_sleha.html > 3. http://www.linux-ha.org/wiki/Sfex_%28resource_agent%29 > > -- > Angel L. Mateo Martínez > Sección de Telemática > Área de Tecnologías de la Información > y las Comunicaciones Aplicadas (ATICA) > http://www.um.es/atica > Tfo: 868887590 > Fax: 868888337 > _______________________________________________ > Linux-HA mailing list > [email protected] > http://lists.linux-ha.org/mailman/listinfo/linux-ha > See also: http://linux-ha.org/ReportingProblems _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
