<div dir="ltr">So If I don't have real fencing device, I can't get a cluster?<div><br></div><div>My requirement is to synchronized two Samba boxes between remote locations, I can't use rsync because of bandwidth consumption and system processing each time it will run it will go through each file and see if it is synced or not. </div>
<div><br></div><div>While GFS seemed to be the right option, but as two servers are distant from each other I can not have fencing device as it may experience power outage or network failures quite often. </div><div><br>
</div>
<div>What do you guys suggest in such scenario?</div><div><br></div><div><div><div dir="ltr">Regards,<br>Zohair Raza<div><br></div></div>
<br><br><div class="gmail_quote">On Wed, Oct 31, 2012 at 12:30 PM, Felix Frank <span dir="ltr"><<a href="mailto:ff@mpexnet.de" target="_blank">ff@mpexnet.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="im">On 10/31/2012 12:02 AM, Lars Ellenberg wrote:<br>
>>> Manual fencing is not in any way supported. You must be able to call<br>
>>> > > 'fence_node <peer>' and have the remote node reset. If this doesn't<br>
>>> > > happen, your fencing is not sufficient.<br>
>> > fence_node <peer> doesn't work for me<br>
>> ><br>
>> > fence_node node2 says<br>
>> ><br>
>> > fence node2 failed<br>
> Which is why you need a *real* fencing device<br>
> for automatic fencing.<br>
<br>
</div>...which is bound to sound more than a little cryptic to the<br>
uninitiated, I assume.<br>
<br>
An example for a "classical" fencing method is a power distribution unit<br>
with network access. The surviving node accesses the PDU and cuts the<br>
power to its peer.<br>
This is just one example. Similar results can be achieved using<br>
IPMI/ILOM technologies etc.<br>
<br>
HTH,<br>
Felix<br>
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