[Pacemaker] 2 Node Cluster: some principal questions

[emmanuel segura]

if you have in you cluster vg exclusive="yes" and remember it's good idea
have stonith configured

Il giorno 22 marzo 2012 15:52, Lentes, Bernd <
bernd.lentes at helmholtz-muenchen.de> ha scritto:

> Hi,
>
> i'd like to establish a 2 Node-Cluster. My OS will be SLES 11 and HAE. My
> services will run in VM's using KVM. I will install the VM's in LV's, one
> LV for one VM. The LV's will be plain partitions, having no filesystem. I
> have read this is quicker with KVM than installing a VM in a LV with
> filesystem.
> My LV's will reside on a FC SAN. Both nodes have access to the SAN. For
> the LV's, i will use cLVM.
>
> My questions are:
>
> - let's assume that, due to an error, a VM will run on both nodes. Does
> cLVM prevent that both VM's have simultaneously access to the corresponding
> LV ? So that the data is not destroyed.
>
> - Is it possible that some VM's run on the first node and other VM's run
> on the second node simultaneously ?
>
> - what do you think about my setup ?
>
>
>
> Bernd
>
> --
> Bernd Lentes
>
> Systemadministration
> Institut für Entwicklungsgenetik
> HelmholtzZentrum münchen
> bernd.lentes at helmholtz-muenchen.de
> phone: +49 89 3187 1241
> fax:   +49 89 3187 3826
> http://www.helmholtz-muenchen.de/idg
>
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