Ulrich wrote: ----- On Dec 16, 2015, at 8:36 AM, Ulrich Windl [email protected] wrote:
>>>> "Lentes, Bernd" <[email protected]> schrieb am 16.12.2015 >>>> um > 00:35 in Nachricht > <1621336773.386234.1450222516246.javamail.zim...@helmholtz-muenchen.de>: > > [...] >> What is about a quorum disk ? I also read about "tiebrakers" or that STONITH >> is magically able to chosse the right >> node to fence (i can't believe that). > > If you read "the right" as "not both" it's OK ;-) > > In HP Service Guard they used a "lock disk" (SCSI disk) as tie breaker: On > split > brain every node tried to "SCSI reserve" the unit, which only one node > suceeded. Then (in an SBD like manner) the name of the survivor was written on > to the disk (I guess), and every other node committed suicide (that's > different > from STONITH where external nodes kill another, AFIK). Something like that is > still missing. > > Personal note: Bernd, I think it's time to try things now. You discussed a > lot, > but I still think you never tried the proposals... > Yes, you are right. But i like to have an idea of what will i do before, rather than testing "which design do i want to have ?" It will still remain a lot to test. I just have to wait for the second HP server we will order in january. We are a public institution and orders sometimes require a lot of time. You work at an university, maybe you experience the same ... Bernd Helmholtz Zentrum Muenchen Deutsches Forschungszentrum fuer Gesundheit und Umwelt (GmbH) Ingolstaedter Landstr. 1 85764 Neuherberg www.helmholtz-muenchen.de Aufsichtsratsvorsitzende: MinDir'in Baerbel Brumme-Bothe Geschaeftsfuehrer: Prof. Dr. Guenther Wess, Dr. Nikolaus Blum, Dr. Alfons Enhsen Registergericht: Amtsgericht Muenchen HRB 6466 USt-IdNr: DE 129521671 _______________________________________________ Users mailing list: [email protected] http://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
