One lvm vg in exclusive mode means just one node at time can access to the data<br><br><br><br><div class="gmail_quote">Il giorno 22 marzo 2012 16:47, 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"><u></u>
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<div dir="ltr" align="left"><span><font color="#0000ff" face="Arial">Hi,</font></span></div>
<div dir="ltr" align="left"><span><font color="#0000ff" face="Arial"></font></span> </div>
<div dir="ltr" align="left"><span><font color="#0000ff" face="Arial">thanks for the quick response. So the data is not destroyed if two identicals VM's access the LV simultaneouslay ? I thought it would be. I will have stonith
too.</font></span></div>
<div dir="ltr" align="left"><span><font color="#0000ff" face="Arial">What is about live migration ? Is it possible with my setup ?</font></span></div><div class="im">
<div dir="ltr" align="left"><span><font color="#0000ff" face="Arial"></font></span> </div>
<div dir="ltr" align="left"><span><font color="#0000ff" face="Arial"></font></span> </div>
<div dir="ltr" align="left"><span><font color="#0000ff" face="Arial">Bernd</font></span></div>
<div> </div>
<p><font>--<br>
Bernd Lentes<br>
<br>
Systemadministration<br>
Institut für Entwicklungsgenetik<br>
HelmholtzZentrum münchen<br>
<a href="mailto:bernd.lentes@helmholtz-muenchen.de" target="_blank">bernd.lentes@helmholtz-muenchen.de</a><br>
phone: <a href="tel:%2B49%2089%203187%201241" value="+498931871241" target="_blank">+49 89 3187 1241</a><br>
fax: <a href="tel:%2B49%2089%203187%203826" value="+498931873826" target="_blank">+49 89 3187 3826</a><br>
<a href="http://www.helmholtz-muenchen.de/idg" target="_blank">http://www.helmholtz-muenchen.de/idg</a><br>
<br>
Wer Visionen hat, soll zum Hausarzt gehen<br>
Helmut Schmidt<br>
</font></p>
<div> </div>
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<div dir="ltr" align="left" lang="de">
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<font face="Tahoma"><b>From:</b> emmanuel segura [mailto:<a href="mailto:emi2fast@gmail.com" target="_blank">emi2fast@gmail.com</a>]
<br>
<b>Sent:</b> Thursday, March 22, 2012 4:12 PM<br>
<b>To:</b> The Pacemaker cluster resource manager<br>
<b>Subject:</b> Re: [Pacemaker] 2 Node Cluster: some principal questions<br>
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</div><div><div class="h5">
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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" target="_blank">bernd.lentes@helmholtz-muenchen.de</a>></span> ha scritto:<br>
<blockquote class="gmail_quote" style="PADDING-LEFT:1ex;MARGIN:0px 0px 0px 0.8ex;BORDER-LEFT:#ccc 1px solid">
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>
<a href="mailto:bernd.lentes@helmholtz-muenchen.de" target="_blank">bernd.lentes@helmholtz-muenchen.de</a><br>
phone: <a href="tel:%2B49%2089%203187%201241" value="+498931871241" target="_blank">+49 89 3187 1241</a><br>
fax: <a href="tel:%2B49%2089%203187%203826" value="+498931873826" target="_blank">+49 89 3187 3826</a><br>
<a href="http://www.helmholtz-muenchen.de/idg" target="_blank">http://www.helmholtz-muenchen.de/idg</a><br>
<br>
Wer Visionen hat, soll zum Hausarzt gehen<br>
Helmut Schmidt<br>
<br>
Helmholtz Zentrum München<br>
Deutsches Forschungszentrum für Gesundheit und Umwelt (GmbH)<br>
Ingolstädter Landstr. 1<br>
85764 Neuherberg<br>
<a href="http://www.helmholtz-muenchen.de" target="_blank">www.helmholtz-muenchen.de</a><br>
Aufsichtsratsvorsitzende: MinDir´in Bärbel Brumme-Bothe<br>
Geschäftsführer: Prof. Dr. Günther Wess und Dr. Nikolaus Blum<br>
Registergericht: Amtsgericht München HRB 6466<br>
USt-IdNr: DE 129521671<br>
<br>
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</blockquote>
</div>
<br>
<br clear="all">
<br>
-- <br>
esta es mi vida e me la vivo hasta que dios quiera<br>
</div></div></blockquote>
<br>
<hr><div class="im">
<font color="Black" face="Arial" size="1">Helmholtz Zentrum München<br>
Deutsches Forschungszentrum für Gesundheit und Umwelt (GmbH)<br>
Ingolstädter Landstr. 1<br>
85764 Neuherberg<br>
<a href="http://www.helmholtz-muenchen.de" target="_blank">www.helmholtz-muenchen.de</a><br>
Aufsichtsratsvorsitzende: MinDir´in Bärbel Brumme-Bothe<br>
Geschäftsführer: Prof. Dr. Günther Wess und Dr. Nikolaus Blum<br>
Registergericht: Amtsgericht München HRB 6466<br>
USt-IdNr: DE 129521671<br>
</font>
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<br>_______________________________________________<br>
Pacemaker mailing list: <a href="mailto:Pacemaker@oss.clusterlabs.org">Pacemaker@oss.clusterlabs.org</a><br>
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<br>
Project Home: <a href="http://www.clusterlabs.org" target="_blank">http://www.clusterlabs.org</a><br>
Getting started: <a href="http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf" target="_blank">http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf</a><br>
Bugs: <a href="http://bugs.clusterlabs.org" target="_blank">http://bugs.clusterlabs.org</a><br>
<br></blockquote></div><br><br clear="all"><br>-- <br>esta es mi vida e me la vivo hasta que dios quiera<br>