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Hi Tibor,<br>
<br>
It all depends on if you can risk the chance of downtime. <br>
Buying a couple larger HDD's is probably cheaper than spending a
couple of hours of your time on it when things break. You could have
one node down permanently, replace it completly and heal the volume<br>
(<a class="moz-txt-link-freetext" href="http://gluster.org/community/documentation/index.php/Gluster_3.4:_Brick_Restoration_-_Replace_Crashed_Server">http://gluster.org/community/documentation/index.php/Gluster_3.4:_Brick_Restoration_-_Replace_Crashed_Server</a>)<br>
<br>
During this time the cluster is at risk and performance will suffer
during healing. I think if you use the same data disk healing will
be quick though.<br>
<br>
Kind regards,<br>
<br>
Jorick Astrego <br>
Netbulae B.V.<br>
<br>
<div class="moz-cite-prefix">On 08/19/2014 10:09 AM, Punit Dambiwal
wrote:<br>
</div>
<blockquote
cite="mid:CAGZcrBmSd-LyDhaeFeoULySZ6g4oiOomr4ynCgUpc88w1UtARA@mail.gmail.com"
type="cite">
<div dir="ltr">Hi Tibor,
<div><br>
</div>
<div>In this if your host OS disk will crash your brick data
also inaccessible..better to have the RAID1 for OS...</div>
<div><br>
</div>
<div>Thanks,</div>
<div>Punit </div>
</div>
<div class="gmail_extra">
<br>
<br>
<div class="gmail_quote">On Tue, Aug 19, 2014 at 2:29 PM,
Demeter Tibor <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:tdemeter@itsmart.hu" target="_blank">tdemeter@itsmart.hu</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>
<div style="font-family:times new roman,new
york,times,serif;font-size:12pt;color:#000000">
<div>Hi,</div>
<div><br>
</div>
<div>I would like to make a four-node gluster based
cluster, but I don't have enought hdd. I just
wondering, on the hosts (not on the portal) I won't
use raid for the main system (os).</div>
<div>I have disks only for bricks. I will give one disk
for the os, and one disk for gluster brick per server.</div>
<div><br>
</div>
<div><span style="font-size:12pt">Is it a good idea?</span></div>
<div>What will happen if the main system's hdd will
break? </div>
<div>Can I recreate gluster+vdsm host without data loss?
</div>
<div>How did I do it?</div>
<div><br>
</div>
<div><br>
</div>
<div>Thanks for advance.</div>
<span class="HOEnZb"><font color="#888888">
<div><br>
</div>
<div>Tibor</div>
<div><br>
</div>
</font></span></div>
</div>
<br>
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</blockquote>
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