<br><br><div class="gmail_quote">On Mon, Feb 9, 2009 at 2:06 PM, Dejan Muhamedagic <span dir="ltr"><<a href="mailto:dejanmm@fastmail.fm">dejanmm@fastmail.fm</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hi,<br>
<div class="Ih2E3d"><br>
On Mon, Feb 09, 2009 at 01:26:56PM +0530, Glory Smith wrote:<br>
> Hi All,<br>
> Anybody worked on stonith external/sbd?? if yes please reply to my following<br>
> mail.<br>
><br>
> On Fri, Feb 6, 2009 at 2:27 PM, Glory Smith <<a href="mailto:xx2glory@gmail.com">xx2glory@gmail.com</a>> wrote:<br>
><br>
> > Hi All,<br>
> > I am New to this list. i have few questions related to stonith external<br>
> > sbd plugin .<br>
> ><br>
> > i saw that document says that read/write to thd sbd device is single point<br>
> > of failure . if we configure multipath then this should not be SPOF anymore<br>
> > . Right??<br>
<br>
</div>Right. Provided your local rat community doesn't consider the<br>
cables edible.<br>
<div class="Ih2E3d"><br>
> > it says that other nodes can write fence request to the errant node's<br>
> > mailbox and the errant node gets fenced.<br>
> > can any one explain when it will happen .<br>
<br>
</div>Whenever the CRM decides a node should be fenced. It has nothing<br>
to do with sbd.<br>
<div class="Ih2E3d"><br>
> > According to my understanding so far, as long as the node is having access<br>
> > to sbd device it will not get fenced and once it looses access to the sbd<br>
> > device it will reset itself . so when other nodes will get chance to fence<br>
> > a node by writing fence request?<br>
<br>
</div>Not true. A node may also get a "poison pill" from another node,<br>
just as you mentioned yourself in the previous paragraph.</blockquote><div><br>As you said if CRM decides a node should be fenced it will be fenced and it has nothing to do with sbd. so in this case cluster must need an another stonith to provide fencing of errant node. is my understanding is correct. <br>
<br>can you explain a bit more , how CRM decide that a node should be fence ? is it when node become unreachable.??<br><br>Thanks<br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
<br>
Thanks,<br>
<br>
Dejan<br>
<br>
<br>
> ><br>
> > Thanks<br>
> ><br>
<br>
> _______________________________________________<br>
> Pacemaker mailing list<br>
> <a href="mailto:Pacemaker@oss.clusterlabs.org">Pacemaker@oss.clusterlabs.org</a><br>
> <a href="http://oss.clusterlabs.org/mailman/listinfo/pacemaker" target="_blank">http://oss.clusterlabs.org/mailman/listinfo/pacemaker</a><br>
<br>
<br>
_______________________________________________<br>
Pacemaker mailing list<br>
<a href="mailto:Pacemaker@oss.clusterlabs.org">Pacemaker@oss.clusterlabs.org</a><br>
<a href="http://oss.clusterlabs.org/mailman/listinfo/pacemaker" target="_blank">http://oss.clusterlabs.org/mailman/listinfo/pacemaker</a><br>
</blockquote></div><br>