Please, forget my last question.<div>I read [1] again and i rephrased my question.</div><div><br></div><div>Each host (or cluster of hosts) must have just one system datastore, rigth?</div><div>The example in [1] for Multi-cluster is interesting, but i would like to change that <span style="background-color:rgb(245,245,245);color:rgb(53,55,53);font-family:Arial,Verdana,Geneva,Helvetica,sans-serif;font-size:13px;line-height:18px;text-align:justify">scenario. There, some hosts can access a shared directory and other cant.</span></div>
<div><span style="background-color:rgb(245,245,245);color:rgb(53,55,53);font-family:Arial,Verdana,Geneva,Helvetica,sans-serif;font-size:13px;line-height:18px;text-align:justify">My </span><span style="background-color:rgb(245,245,245);color:rgb(53,55,53);font-family:Arial,Verdana,Geneva,Helvetica,sans-serif;font-size:13.200000762939453px;line-height:18px;text-align:justify">scenario is different: all hosts can access the shared directory but should be able to use a local storage. I mean, i would like to have two system DS for the hosts at same time.</span></div>
<div><span style="background-color:rgb(245,245,245);color:rgb(53,55,53);font-family:Arial,Verdana,Geneva,Helvetica,sans-serif;font-size:13.200000762939453px;line-height:18px;text-align:justify">One </span><span style="background-color:rgb(245,245,245);color:rgb(53,55,53);font-family:Arial,Verdana,Geneva,Helvetica,sans-serif;font-size:13.200000762939453px;line-height:18px;text-align:justify">shared </span><span style="background-color:rgb(245,245,245);color:rgb(53,55,53);font-family:Arial,Verdana,Geneva,Helvetica,sans-serif;font-size:13.200000762939453px;line-height:18px;text-align:justify">for the </span><span style="background-color:rgb(245,245,245);color:rgb(53,55,53);font-family:Arial,Verdana,Geneva,Helvetica,sans-serif;font-size:13.200000762939453px;line-height:18px;text-align:justify">users who dont care about I/O performance and desire a fast vm creation and live migration. Another for the</span><span style="background-color:rgb(245,245,245);color:rgb(53,55,53);font-family:Arial,Verdana,Geneva,Helvetica,sans-serif;font-size:13.200000762939453px;line-height:18px;text-align:justify"> users who need better I/O performance.</span></div>
<div><br></div><div>Is that possible?</div><div><br></div><div>Thanks a lot.</div><div><br></div><div>[1] <a href="http://opennebula.org/documentation:rel3.6:system_ds">http://opennebula.org/documentation:rel3.6:system_ds</a>
</div><div><br><div class="gmail_quote">2012/7/19 Paulo A L Rego <span dir="ltr"><<a href="mailto:pauloalr.alu@gmail.com" target="_blank">pauloalr.alu@gmail.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="gmail_quote">Hi,</div><div class="gmail_quote"><br></div><div class="gmail_quote"><div class="im">2012/7/18 Carlos Martín Sánchez <span dir="ltr"><<a href="mailto:cmartin@opennebula.org" target="_blank">cmartin@opennebula.org</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>Hi,</div><div><br></div><div>If I understood correctly, you want to share the qcow datastore, but use local storage for the system datastore.</div>
<div></div></blockquote><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>To do this, simply set the ssh TM driver for the system DS [1], and make sure you are exporting only /var/lib/one/datastores/100.</div>
</blockquote><div><br></div></div><div>Should i still share /var/lib/one/datastores/0 with all hosts?</div><div><br></div><div>Thanks</div><div class="im"><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div></div><div>Regards</div><div><br></div><div>[1] <a href="http://opennebula.org/documentation:rel3.6:system_ds" target="_blank">http://opennebula.org/documentation:rel3.6:system_ds</a><br clear="all">--<br>Carlos Martín, MSc<br>
Project Engineer<br>
OpenNebula - The Open-source Solution for Data Center Virtualization<div><span style="border-collapse:collapse;color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px"><a href="http://www.OpenNebula.org" target="_blank">www.OpenNebula.org</a> | <a href="mailto:cmartin@opennebula.org" target="_blank">cmartin@opennebula.org</a> | <a href="http://twitter.com/opennebula" target="_blank">@OpenNebula</a></span><span style="border-collapse:collapse;color:rgb(136,136,136);font-family:arial,sans-serif;font-size:13px"><a href="mailto:cmartin@opennebula.org" style="color:rgb(42,93,176)" target="_blank"></a></span></div>
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<br><br><div class="gmail_quote"><div><div>On Wed, Jul 18, 2012 at 1:30 AM, Paulo A L Rego <span dir="ltr"><<a href="mailto:pauloalr.alu@gmail.com" target="_blank">pauloalr.alu@gmail.com</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div>
<div class="gmail_quote"><span style="color:rgb(34,34,34);font-size:13.200000762939453px"><font face="arial, helvetica, sans-serif">Hello,</font></span><div><font face="arial, helvetica, sans-serif"><br></font></div>
<div><font face="arial, helvetica, sans-serif">Is there any way to use qcow and ssh transfer driver for the same host?</font></div><div><span style="color:rgb(34,34,34);font-size:13.200000762939453px"><font face="arial, helvetica, sans-serif">We have a shared FS with NFS using qcow, but when a lot of VMs are launched, the storage I/O becomes a bottleneck.</font></span></div>
<div><font face="arial, helvetica, sans-serif">We want to use both shared and local images for all hosts. </font></div><div><font color="#222222" face="arial, helvetica, sans-serif"><br></font></div><div><font color="#222222" face="arial, helvetica, sans-serif">We created two datastores - qcow(id 100) and ssh (id 101) - and the same image was created for both.</font></div>
<div><font face="arial, helvetica, sans-serif"><font color="#222222">The problem is that the running VMs are always placed in </font><span style="background-color:rgb(245,245,245);color:rgb(53,55,53);font-size:13px;line-height:18px;text-align:justify">/var/lib/one/datastores/0.</span><font color="#222222"> </font></font></div>
<div><font face="arial, helvetica, sans-serif"><font color="#222222">How the shared FS is mounted in that directory, w</font><span style="color:rgb(34,34,34)">hen we deploy a VM using the image on ssh datastore, the image is tranfered using ssh, but is placed on the shared FS.</span></font></div>
<div><span style="color:rgb(34,34,34)"><font face="arial, helvetica, sans-serif"><br></font></span></div><div><font face="arial, helvetica, sans-serif"><span style="color:rgb(34,34,34)">We would like to have two directories for running VMs. </span></font><span style="font-family:arial,helvetica,sans-serif;color:rgb(34,34,34)">This way we could deploy on the shared FS on </span><span style="font-family:arial,helvetica,sans-serif;background-color:rgb(245,245,245);color:rgb(53,55,53);font-size:13.200000762939453px;line-height:18px;text-align:justify">/var/lib/one/datastores/0 and use another directory (maybe </span><span style="font-family:arial,helvetica,sans-serif;background-color:rgb(245,245,245);color:rgb(53,55,53);font-size:13.200000762939453px;line-height:18px;text-align:justify">/var/lib/one/datastores/101) for local images.</span></div>
<div><font face="arial, helvetica, sans-serif"><span style="background-color:rgb(245,245,245);color:rgb(53,55,53);font-size:13.200000762939453px;line-height:18px;text-align:justify"><br></span></font></div><div><font face="arial, helvetica, sans-serif"><span style="background-color:rgb(245,245,245);color:rgb(53,55,53);font-size:13.200000762939453px;line-height:18px;text-align:justify">Any solution?</span></font></div>
<div><font face="arial, helvetica, sans-serif"><span style="background-color:rgb(245,245,245);color:rgb(53,55,53);font-size:13.200000762939453px;line-height:18px;text-align:justify"><br></span></font></div><div><font face="arial, helvetica, sans-serif"><span style="background-color:rgb(245,245,245);color:rgb(53,55,53);font-size:13.200000762939453px;line-height:18px;text-align:justify">Thanks a lot.</span></font></div>
<div><font face="arial, helvetica, sans-serif"><span style="background-color:rgb(245,245,245);color:rgb(53,55,53);font-size:13.200000762939453px;line-height:18px;text-align:justify">Paulo Antonio Leal Rego</span></font></div>
<div><font face="arial, helvetica, sans-serif"><span style="background-color:rgb(245,245,245);color:rgb(53,55,53);font-size:13.200000762939453px;line-height:18px;text-align:justify">Federal University of Ceara - Brazil</span></font></div>
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