if you have in you cluster vg exclusive="yes" and remember it's good idea have stonith configured<br><br><div class="gmail_quote">Il giorno 22 marzo 2012 15:52, Lentes, Bernd <span dir="ltr"><<a href="mailto:bernd.lentes@helmholtz-muenchen.de">bernd.lentes@helmholtz-muenchen.de</a>></span> ha scritto:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
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.<br>
My LV's will reside on a FC SAN. Both nodes have access to the SAN. For the LV's, i will use cLVM.<br>
<br>
My questions are:<br>
<br>
- 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.<br>
<br>
- Is it possible that some VM's run on the first node and other VM's run on the second node simultaneously ?<br>
<br>
- what do you think about my setup ?<br>
<br>
<br>
<br>
Bernd<br>
<br>
--<br>
Bernd Lentes<br>
<br>
Systemadministration<br>
Institut für Entwicklungsgenetik<br>
HelmholtzZentrum münchen<br>
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