On 03/13/2019 10:56 AM, Lopez, Francisco Javier [Global IT] wrote: > Hello guys ! > > I'm dealing since some time ago with this configuration: > > - Two node cluster. > - Vmware boxes. > - PostgreSql release 10.X: Master/Slave. > > On top of this I've set up Pacemaker/Corosync and RA/PAF. > > Now it's time to play with different fencing scenarios. > I'd like to know from more experienced people about this. Based on the > configuration I have (or similar) > perhaps some of you can tell me, based on your experience, what kind > of fencing sounds more appropriate, > either node or resource level and based on what. > > Any quick reference would help me a lot.
Vmware being your hypervisor you can go for fence_vmware_rest or fence_vmware_soap as fence-agents. That might depend on your distribution and which fence-agent-styles are preferred/supported. If you don't want fencing talking to your hypervisor for whatever reason you might think of sparing a shared disk (outside of your hypervisor or provided by the hypervisor) and going with sbd (Sbd needs a shared disk for useful deployments of 2-node clusters. If you spare more virtual-nodes or deploy qdevice that gives you 'real quorum' and sbd can be used without a shared disk.). As sbd is relying on a watchdog and Vmware doesn't provide one you would have to go with softdog (software emulation of a watchdog at least not relying on a working userland) leaving you with somewhat reduced reliability of the solution. Depending on how your data is stored you might in addition consider resource-fencing on the storage. I'm aware that this doesn't give you an immediate solution but I hope you'll find a few pointers to be able to proceed. Klaus > > I reviewed the threads and did not find any specific to this. I'd like > to have this information to better > understand what agents to install and manage. > > Thank you > Javier > > > > Francisco Javier Lopez > > IT System Engineer | Global IT > > O: *+34 619 728 249* <tel:+34%20619%20728%20249> | > M: *+34 619 728 249* <tel:+34%20619%20728%20249> | > *franciscojavier.lo...@solera.com* > <mailto:franciscojavier.lo...@solera.com> | *Solera.com* > <https://www.solera.com/> > > Audatex Datos, S.A. | > Avda. de Bruselas, 36, Salida 16, A‑1 (Diversia) , Alcobendas > , > Madrid , 28108 , Spain > > > > > ------------------------------------------------------------------------ > > " Este e-mail y sus archivos adjuntos son confidenciales y están > dirigidos exclusivamente a la(s) persona(s) destinataria prevista. Si > ha recibido este mensaje por error, por favor, notifique > inmediatamente al remitente y elimine este mensaje. La empresa no > firma contratos por e-mail y todas las negociaciones están sujetas a > la firma de un contrato por escrito. > > This e-mail and any attached files are confidential and intended for > the named addressee(s) only. If you have received this message in > error, please notify the sender and delete the email immediately. The > company does not conclude contracts by email and all negotiations are > subject to written contract. " > > > _______________________________________________ > Users mailing list: Users@clusterlabs.org > https://lists.clusterlabs.org/mailman/listinfo/users > > Project Home: http://www.clusterlabs.org > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > Bugs: http://bugs.clusterlabs.org
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