[ClusterLabs] DRBD, dual-primary, Live-Migration - Cluster FS necessary ?

Lentes, Bernd bernd.lentes at helmholtz-muenchen.de
Wed Sep 6 13:30:12 EDT 2017


i just want to be sure. I created a DRBD partition in a dual primary setup. I have a VirtualDomain (KVM) resource which resides in the naked DRBD (without FS), and i can live migrate.
Are there situations where in this setup a cluster fs is necessary/recommended ? I'd like to avoid it, it causes more complexity.
Btw: resource level fencing is necessary. Is the setup for dual-primary the same as with single-primary ?

My cluster: SLES 11 SP4, DRBD 8.4.4, pacemaker 1.12.



Bernd Lentes 

institute of developmental genetics 
Gebäude 35.34 - Raum 208 
HelmholtzZentrum München 
bernd.lentes at helmholtz-muenchen.de 
phone: +49 (0)89 3187 1241 
fax: +49 (0)89 3187 2294 

no backup - no mercy

Helmholtz Zentrum Muenchen
Deutsches Forschungszentrum fuer Gesundheit und Umwelt (GmbH)
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