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<div class="moz-cite-prefix">On 07/24/2017 11:59 PM, Tomer Azran
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:B71057A42F7488498D6FAF859D9283FE2AC2F7D7@EDPEX02.globalit.local">
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<div class="WordSection1">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">There
is a problem with that – it seems like SBD with shared disk
is disabled on CentOS 7.3:<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">When
I run:<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">#
sbd -d /dev/sbd create<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">I
get:<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Shared
disk functionality not supported</span></p>
</div>
</blockquote>
<br>
Which is why I suggested to go for watchdog-fencing using<br>
your qdevice setup.<br>
As said I haven't tried with qdevice-quorum - but I don't<br>
see a reason why that shouldn't work.<br>
no-quorum-policy has to be suicide of course.<br>
<br>
<blockquote type="cite"
cite="mid:B71057A42F7488498D6FAF859D9283FE2AC2F7D7@EDPEX02.globalit.local">
<div class="WordSection1">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p></o:p></span></p>
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">So
I might try the software watchdog (softgod or
ipmi_watchdog)</span></p>
</div>
</div>
</blockquote>
<br>
A reliable watchdog is really crucial for sbd so I would<br>
recommend going for ipmi or anything else that has<br>
hardware behind.<br>
<br>
Klaus<br>
<blockquote type="cite"
cite="mid:B71057A42F7488498D6FAF859D9283FE2AC2F7D7@EDPEX02.globalit.local">
<div class="WordSection1">
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
</div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Tomer.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">
Tomer Azran [<a class="moz-txt-link-freetext" href="mailto:tomer.azran@edp.co.il">mailto:tomer.azran@edp.co.il</a>]
<br>
<b>Sent:</b> Tuesday, July 25, 2017 12:30 AM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:kwenning@redhat.com">kwenning@redhat.com</a>; Cluster Labs - All
topics related to open-source clustering welcomed
<a class="moz-txt-link-rfc2396E" href="mailto:users@clusterlabs.org"><users@clusterlabs.org></a>; Prasad, Shashank
<a class="moz-txt-link-rfc2396E" href="mailto:ssprasad@vanu.com"><ssprasad@vanu.com></a><br>
<b>Subject:</b> Re: [ClusterLabs] Two nodes cluster
issue<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">I
tend to agree with Klaus – I don't think that having a hook
that bypass stonith is the right way. It is better to not
use stonith at all.</span></p>
</div>
</blockquote>
<br>
That was of course with a certain degree of hyperbolism. Anything is
of course better than not having<br>
fencing at all.<br>
I might be wrong but what you were saying somehow was drawing a
picture in my mind that you<br>
have your 2 nodes at 2 sites/rooms quite separated and in that case
...<br>
<br>
<blockquote type="cite"
cite="mid:B71057A42F7488498D6FAF859D9283FE2AC2F7D7@EDPEX02.globalit.local">
<div class="WordSection1">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">I
think I will try to use an iScsi target on my qdevice and
set SBD to use it.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">I
still don't understand why qdevice can't take the place SBD
with shared storage; correct me if I'm wrong, but it looks
like both of them are there for the same reason.<o:p></o:p></span></p>
</div>
</blockquote>
<br>
sbd with watchdog + qdevice can take the place of sbd with shared
storage.<br>
qdevice is there to decide which part of a cluster is quorate and
which not - in cases<br>
where after a split this wouldn't be possible.<br>
sbd (with watchdog) is then there to reliably take down the
non-quorate part<br>
within a well defined time.<br>
<br>
<blockquote type="cite"
cite="mid:B71057A42F7488498D6FAF859D9283FE2AC2F7D7@EDPEX02.globalit.local">
<div class="WordSection1">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext">
Klaus Wenninger [<a href="mailto:kwenning@redhat.com"
moz-do-not-send="true">mailto:kwenning@redhat.com</a>]
<br>
<b>Sent:</b> Monday, July 24, 2017 9:01 PM<br>
<b>To:</b> Cluster Labs - All topics related to
open-source clustering welcomed <<a
href="mailto:users@clusterlabs.org"
moz-do-not-send="true">users@clusterlabs.org</a>>;
Prasad, Shashank <<a href="mailto:ssprasad@vanu.com"
moz-do-not-send="true">ssprasad@vanu.com</a>><br>
<b>Subject:</b> Re: [ClusterLabs] Two nodes cluster
issue<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal">On 07/24/2017 07:32 PM, Prasad, Shashank
wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Sometimes
IPMI fence devices use shared power of the node, and it
cannot be avoided.</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">In
such scenarios the HA cluster is NOT able to handle the
power failure of a node, since the power is shared with
its own fence device.</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">The
failure of IPMI based fencing can also exist due to other
reasons also.</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">A
failure to fence the failed node will cause cluster to be
marked UNCLEAN.</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">To
get over it, the following command needs to be invoked on
the surviving node.</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">pcs
stonith confirm <failed_node_name> --force</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">This
can be automated by hooking a recovery script, when the
the Stonith resource ‘Timed Out’ event.</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">To
be more specific, the Pacemaker Alerts can be used for
watch for Stonith timeouts and failures.</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">In
that script, all that’s essentially to be executed is the
aforementioned command.</span><o:p></o:p></p>
</blockquote>
<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
If I get you right here you can disable fencing then in the
first place.<br>
Actually quorum-based-watchdog-fencing is the way to do this
in a<br>
safe manner. This of course assumes you have a proper source
for<br>
quorum in your 2-node-setup with e.g. qdevice or using a
shared<br>
disk with sbd (not directly pacemaker quorum here but similar
thing<br>
handled inside sbd).<br>
<br>
<o:p></o:p></p>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Since
the alerts are issued from ‘hacluster’ login, sudo
permissions for ‘hacluster’ needs to be configured.</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Thanx.</span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<div style="border:none;border-left:solid blue
1.5pt;padding:0cm 0cm 0cm 4.0pt">
<div>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:windowtext">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:windowtext">
Klaus Wenninger [</span><a
href="mailto:kwenning@redhat.com"
moz-do-not-send="true"><span
style="font-size:10.0pt;font-family:"Tahoma",sans-serif">mailto:kwenning@redhat.com</span></a><span
style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:windowtext">]
<br>
<b>Sent:</b> Monday, July 24, 2017 9:24 PM<br>
<b>To:</b> Kristián Feldsam; Cluster Labs - All
topics related to open-source clustering welcomed<br>
<b>Subject:</b> Re: [ClusterLabs] Two nodes cluster
issue</span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<div>
<p class="MsoNormal">On 07/24/2017 05:37 PM, Kristián
Feldsam wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal">I personally think that power off
node by switched pdu is more safe, or not?<o:p></o:p></p>
</blockquote>
<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
True if that is working in you environment. If you can't
do a physical setup<br>
where you aren't simultaneously loosing connection to both
your node and<br>
the switch-device (or you just want to cover cases where
that happens)<br>
you have to come up with something else.<br>
<br>
<br>
<o:p></o:p></p>
<div>
<p class="MsoNormal"><br>
<span style="font-family:"Baskerville",serif">S
pozdravem Kristián Feldsam<br>
Tel.: +420 773 303 353, +421 944 137 535<br>
E-mail.: </span><a href="mailto:support@feldhost.cz"
moz-do-not-send="true"><span
style="font-family:"Baskerville",serif">support@feldhost.cz</span></a><span
style="font-family:"Baskerville",serif"><br>
<br>
</span><a href="http://www.feldhost.cz"
moz-do-not-send="true"><span
style="font-family:"Baskerville",serif">www.feldhost.cz</span></a><span
style="font-family:"Baskerville",serif"> -<span
class="apple-converted-space"> </span><b>Feld</b>Host</span>™<span
class="apple-converted-space"><span
style="font-family:"Baskerville",serif"> </span></span><span
style="font-family:"Baskerville",serif">–
profesionální hostingové a serverové služby za
adekvátní ceny.<br>
<br>
FELDSAM s.r.o.<br>
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IČ: 290 60 958, DIČ: CZ290 60 958<br>
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Banka: Fio banka a.s.<br>
Číslo účtu: 2400330446/2010<br>
BIC: FIOBCZPPXX<br>
IBAN: CZ82 2010 0000 0024 0033 0446</span> <o:p></o:p></p>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal">On 24 Jul 2017, at 17:27, Klaus
Wenninger <<a href="mailto:kwenning@redhat.com"
moz-do-not-send="true">kwenning@redhat.com</a>>
wrote:<o:p></o:p></p>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
<div>
<div>
<p class="MsoNormal" style="background:white"><span
style="font-family:"Baskerville",serif">On 07/24/2017 05:15
PM, Tomer Azran wrote:</span><o:p></o:p></p>
</div>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt;font-variant-caps:
normal;orphans: auto;text-align:start;widows:
auto;-webkit-text-size-adjust:
auto;-webkit-text-stroke-width:
0px;background-color:rgb(255, 255,
255);word-spacing:0px">
<div>
<p class="MsoNormal" style="background:white"><span
style="font-size:11.0pt;font-family:"Arial",sans-serif">I
still don't understand why the qdevice concept
doesn't help on this situation. Since the
master node is down, I would expect the quorum
to declare it as dead.</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal" style="background:white"><span
style="font-size:11.0pt;font-family:"Arial",sans-serif">Why
doesn't it happens?</span><o:p></o:p></p>
</div>
</blockquote>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span
style="font-family:"Baskerville",serif"><br>
That is not how quorum works. It just limits the
decision-making to the quorate subset of the
cluster.<br>
Still the unknown nodes are not sure to be down.<br>
That is why I suggested to have quorum-based
watchdog-fencing with sbd.<br>
That would assure that within a certain time all
nodes of the non-quorate part<br>
of the cluster are down.<br>
<br>
<br>
</span><o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span
style="font-family:"Baskerville",serif"><br>
<br>
</span><o:p></o:p></p>
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span
style="font-family:"Baskerville",serif">On Mon, Jul 24, 2017
at 4:15 PM +0300, "Dmitri Maziuk"<span
class="apple-converted-space"> </span><</span><a
href="mailto:dmitri.maziuk@gmail.com"
target="_blank" moz-do-not-send="true"><span
style="font-family:"Baskerville",serif">dmitri.maziuk@gmail.com</span></a><span
style="font-family:"Baskerville",serif">><span
class="apple-converted-space"> </span>wrote:</span><o:p></o:p></p>
<div>
<pre>On 2017-07-24 07:51, Tomer Azran wrote:<o:p></o:p></pre>
<pre>> We don't have the ability to use it.<o:p></o:p></pre>
<pre>> Is that the only solution?<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>No, but I'd recommend thinking about it first. Are you sure you will <o:p></o:p></pre>
<pre>care about your cluster working when your server room is on fire? 'Cause <o:p></o:p></pre>
<pre>unless you have halon suppression, your server room is a complete <o:p></o:p></pre>
<pre>write-off anyway. (Think water from sprinklers hitting rich chunky volts <o:p></o:p></pre>
<pre>in the servers.)<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>Dima<o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>_______________________________________________<o:p></o:p></pre>
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<pre> <o:p></o:p></pre>
<pre>Project Home: <a href="http://www.clusterlabs.org/" moz-do-not-send="true">http://www.clusterlabs.org</a><o:p></o:p></pre>
<pre>Getting started: <a href="http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf" moz-do-not-send="true">http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf</a><o:p></o:p></pre>
<pre>Bugs: <a href="http://bugs.clusterlabs.org/" moz-do-not-send="true">http://bugs.clusterlabs.org</a><o:p></o:p></pre>
</div>
</div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span
style="font-family:"Baskerville",serif"><br>
<br>
<br>
</span><o:p></o:p></p>
<pre>_______________________________________________<o:p></o:p></pre>
<pre>Users mailing list: <a href="mailto:Users@clusterlabs.org" moz-do-not-send="true">Users@clusterlabs.org</a><o:p></o:p></pre>
<pre><a href="http://lists.clusterlabs.org/mailman/listinfo/users" moz-do-not-send="true">http://lists.clusterlabs.org/mailman/listinfo/users</a><o:p></o:p></pre>
<pre> <o:p></o:p></pre>
<pre>Project Home: <a href="http://www.clusterlabs.org/" moz-do-not-send="true">http://www.clusterlabs.org</a><o:p></o:p></pre>
<pre>Getting started: <a href="http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf" moz-do-not-send="true">http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf</a><o:p></o:p></pre>
<pre>Bugs: <a href="http://bugs.clusterlabs.org/" moz-do-not-send="true">http://bugs.clusterlabs.org</a><o:p></o:p></pre>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;font-variant-caps:
normal;text-align:start;-webkit-text-stroke-width:
0px;background-color:rgb(255, 255,
255);word-spacing:0px">
<span
style="font-family:"Baskerville",serif"> </span><o:p></o:p></p>
<pre style="background:white;font-variant-caps: normal;text-align:start;-webkit-text-stroke-width: 0px;word-spacing:0px"><span style="font-size:12.0pt">-- </span><o:p></o:p></pre>
<pre style="background:white"><span style="font-size:12.0pt">Klaus Wenninger</span><o:p></o:p></pre>
<pre style="background:white"><span style="font-size:12.0pt"> </span><o:p></o:p></pre>
<pre style="background:white"><span style="font-size:12.0pt">Senior Software Engineer, EMEA ENG Openstack Infrastructure</span><o:p></o:p></pre>
<pre style="background:white"><span style="font-size:12.0pt"> </span><o:p></o:p></pre>
<pre style="background:white"><span style="font-size:12.0pt">Red Hat</span><o:p></o:p></pre>
<pre style="background:white"><span style="font-size:12.0pt"> </span><o:p></o:p></pre>
<pre style="background:white"><a href="mailto:kwenning@redhat.com" moz-do-not-send="true"><span style="font-size:12.0pt">kwenning@redhat.com</span></a><span style="font-size:12.0pt"> </span><o:p></o:p></pre>
<p class="MsoNormal"><span
style="font-family:"Baskerville",serif">_______________________________________________<br>
Users mailing list:<span
class="apple-converted-space"> </span></span><a
href="mailto:Users@clusterlabs.org"
moz-do-not-send="true"><span
style="font-family:"Baskerville",serif;background:white">Users@clusterlabs.org</span></a><span
style="font-family:"Baskerville",serif"><br>
</span><a
href="http://lists.clusterlabs.org/mailman/listinfo/users"
moz-do-not-send="true"><span
style="font-family:"Baskerville",serif">http://lists.clusterlabs.org/mailman/listinfo/users</span></a><span
style="font-family:"Baskerville",serif"><br>
<br>
Project Home:<span class="apple-converted-space"> </span></span><a
href="http://www.clusterlabs.org/"
moz-do-not-send="true"><span
style="font-family:"Baskerville",serif;background:white">http://www.clusterlabs.org</span></a><span
style="font-family:"Baskerville",serif"><br>
Getting started:<span
class="apple-converted-space"> </span></span><a
href="http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf"
moz-do-not-send="true"><span
style="font-family:"Baskerville",serif">http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf</span></a><span
style="font-family:"Baskerville",serif"><br>
Bugs:<span class="apple-converted-space"> </span></span><a
href="http://bugs.clusterlabs.org/"
moz-do-not-send="true"><span
style="font-family:"Baskerville",serif;background:white">http://bugs.clusterlabs.org</span></a><o:p></o:p></p>
</div>
</blockquote>
</div>
<p class="MsoNormal"> <o:p></o:p></p>
</div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
<br>
<o:p></o:p></p>
<pre>_______________________________________________<o:p></o:p></pre>
<pre>Users mailing list: <a href="mailto:Users@clusterlabs.org" moz-do-not-send="true">Users@clusterlabs.org</a><o:p></o:p></pre>
<pre><a href="http://lists.clusterlabs.org/mailman/listinfo/users" moz-do-not-send="true">http://lists.clusterlabs.org/mailman/listinfo/users</a><o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>Project Home: <a href="http://www.clusterlabs.org" moz-do-not-send="true">http://www.clusterlabs.org</a><o:p></o:p></pre>
<pre>Getting started: <a href="http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf" moz-do-not-send="true">http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf</a><o:p></o:p></pre>
<pre>Bugs: <a href="http://bugs.clusterlabs.org" moz-do-not-send="true">http://bugs.clusterlabs.org</a><o:p></o:p></pre>
<pre> <o:p></o:p></pre>
</blockquote>
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</blockquote>
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