Hi Cris,<br><br>Both behaviours are possible, depending on your storage model.<br>With a non-shared storage, you need to successfully shutdown your VM, otherwise changes are not transferred back.<br>In a shared storage scenario, you are using the 'master' image directly (opennebula creates a symlink)<br>
<br>We are trying to identify and document all these infrastructure details to improve the 3.0 documentation; you can read more at [1,2]<br><br>Regards.<br><br>[1] <a href="http://opennebula.org/documentation:rel3.0:sfs#considerations_limitations">http://opennebula.org/documentation:rel3.0:sfs#considerations_limitations</a><br>
[2] <a href="http://opennebula.org/documentation:rel3.0:nsfs#considerations_limitations">http://opennebula.org/documentation:rel3.0:nsfs#considerations_limitations</a><br><br clear="all"><span style="border-collapse:collapse;color:rgb(136, 136, 136);font-family:arial, sans-serif;font-size:13px">--<br>
Carlos Martín, MSc<br>Project Major Contributor<br><span style="background-color:rgb(255, 255, 204);color:rgb(34, 34, 34);background-repeat:initial initial">OpenNebula</span> - The Open Source Toolkit for Cloud Computing<br>
<a href="http://www.opennebula.org/" style="color:rgb(42, 93, 176)" target="_blank">www.<span style="background-color:rgb(255, 255, 204);color:rgb(34, 34, 34);background-repeat:initial initial">OpenNebula</span>.org</a> | <a href="mailto:cmartin@opennebula.org" style="color:rgb(42, 93, 176)" target="_blank">cmartin@<span style="background-color:rgb(255, 255, 204);color:rgb(34, 34, 34);background-repeat:initial initial">opennebula</span>.org</a></span><br>
<br><br><div class="gmail_quote">On Wed, Aug 10, 2011 at 11:06 PM, Chris Cullen <span dir="ltr"><<a href="mailto:amrit@cs.byu.edu">amrit@cs.byu.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
I'm curious as to when changes to an image are written to disc. A fellow<br>
on irc the other day seemed to think that if your kernel paniced you<br>
would lose any changes since the vm was started, and it would revert<br>
back to that state of reboot. But from reading the docs it doesn't seem<br>
like they would behave any differently than a physical machine in that<br>
regard. I assume he was getting confused with non-persistent images, but<br>
want to ask anyway.<br>
<br>
Chris<br>
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