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<p>Hi,</p>
<p>Again, does anybody has some ideas about this. We need to recreate all VM's and it is not solution for production environment (good that it was just a begining of migration from XenServer) .</p>
<p>Here are the steps we did:</p>
<ul>
<li>no machine can be run because ON says that system data store is full (it shows it has 500GB instead of 7GB), </li>
<li>we stopped all the VM's and then restarted frontend - it did not helped</li>
<li>the we restarted kvm - it did not helped</li>
<li>we deleted this 500GB /var/tmp/8d187572e1d5ec159420701f9177150c file - again machines were unable to start</li>
<li>so we deleted VMs and created them again - good they had a template, but unfortunately now the VM's got new IP addresses so it blocked access to them from outside world due to firewall rules</li>
<li>now after above steps system datastore has magically moved to frontend and has again correct capacity of 7GB</li>
</ul>
<p>So the questions now:</p>
<ul>
<li>how can system datastore move from frontend to kvm? Can it be moved manually?</li>
<li>what is the system datastore used for?</li>
<li>wouldn't it be better if system datastore be placed on ceph and is it possible that it can be placed on ceph?</li>
</ul>
<p>Regards</p>
<p>Pawel</p>
<p>---</p>
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<pre>Paweł Orzechowski
pawel.orzechowski@budikom.net
<strong>budikom.net</strong>
ul. Trzy Lipy 3, GPNT, bud. C
80-172 Gdańsk
tel.: +48 58 58 58 708
email: biuro@budikom.net</pre>
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<p>W dniu 2014-08-05 08:32, Mateusz Skała napisał(a):</p>
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<pre>Hi,
I run some VM's on OpenNebula, but after few machines system datastore
are full. As Image backend we are using ceph datastore (and there is
enough disk space), but system datastore is probably from kvm host, from
file /var/tmp/8d187572e1d5ec159420701f9177150c.
How can I make some free space? It is possible to move system datastore
on Ceph?
</pre>
</blockquote>
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