<html><body><div style="font-family: trebuchet ms,sans-serif; font-size: 10pt; color: #000000"><div>I submitted a request quite a while ago upon implementation of the driver to utilize RBD Format 2 images (which permit the usage of copy-on-write snapshots). It is on the roadmap to be implemented on improving Ceph integration (as you'll find that Ceph support is broken when using anything newer than the default libvirt-bin and qemu-kvm packages included with Ubuntu 12.04, even if using packages from the Ubuntu Cloud Archive). </div><div><br></div><div><a href="http://dev.opennebula.org/issues/1796#change-4486" data-mce-href="http://dev.opennebula.org/issues/1796#change-4486">http://dev.opennebula.org/issues/1796#change-4486</a></div><div><br></div><hr id="zwchr"><div style="color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;" data-mce-style="color: #000; font-weight: normal; font-style: normal; text-decoration: none; font-family: Helvetica,Arial,sans-serif; font-size: 12pt;"><b>From: </b>"Igor Laskovy" <igor.laskovy@gmail.com><br><b>To: </b>"Kenneth" <kenneth@apolloglobal.net><br><b>Cc: </b>users@lists.opennebula.org<br><b>Sent: </b>Tuesday, September 3, 2013 7:20:14 AM<br><b>Subject: </b>Re: [one-users] Working with Ceph datastore - How to tell do linked snapshot for new VM?<br><div><br></div><div dir="ltr">Thanks for reply!<div><br></div><div>><span style="font-family:Verdana,Geneva,sans-serif;font-size:13px" data-mce-style="font-family: Verdana,Geneva,sans-serif; font-size: 13px;">The allocation time will depend on how fast your ceph network is.</span></div><div><span style="font-family:Verdana,Geneva,sans-serif;font-size:13px" data-mce-style="font-family: Verdana,Geneva,sans-serif; font-size: 13px;"><br> </span></div><div><span face="Verdana, Geneva, sans-serif" data-mce-style="font-family: Verdana, Geneva, sans-serif;" style="font-family: Verdana, Geneva, sans-serif;">Actually, I asking about eliminate copy operation. In Ceph you can start images form snapshots and if you boot 100 VMs from one Image you will basically using only one large disk and 100 snapshots with data that will changed. This behaviour can be expected in opennebula somehow?</span></div></div><div class="gmail_extra"><br><div><br></div><div class="gmail_quote">On Tue, Sep 3, 2013 at 1:09 PM, Kenneth <span dir="ltr"><<a href="mailto:kenneth@apolloglobal.net" target="_blank" data-mce-href="mailto:kenneth@apolloglobal.net">kenneth@apolloglobal.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex" data-mce-style="margin: 0 0 0 .8ex; border-left: 1px #ccc solid; padding-left: 1ex;"><span data-mce-style="text-decoration: underline;" style="text-decoration: underline;"></span><div style="font-family:Verdana,Geneva,sans-serif" data-mce-style="font-family: Verdana,Geneva,sans-serif;"><p>Are you cloning/uploading an existing image to open nebula?.</p><p>I'm using ceph datastore too. My kvm template image is a 21GB qcow2 (and raw) image but only 1.5GB of space is taken up. (that is before uploading to nebula).</p><p>Images that will be stored in ceph will be converted to RBD and when nebula "sees" that a this disk is 21GB, it will be allocated. The allocation time will depend on how fast your ceph network is.</p><p>And have you tried creating an empty datablock? Create an empty datablock in the ceph datastore and then install linux on that datablock, the allocation of an empty datablock is faster, though you'll need to install the OS afterwards.</p><div><div class="h5"><p> </p><p>On 09/03/2013 05:57 PM, Igor Laskovy wrote:</p></div></div><blockquote style="padding-left:5px;border-left:#1010ff 2px solid;margin-left:5px;width:100%" data-mce-style="padding-left: 5px; border-left: #1010ff 2px solid; margin-left: 5px; width: 100%;"><div><div class="h5"><div dir="ltr">Anybody? ;)</div><div class="gmail_extra"><br><div><br></div><div class="gmail_quote">On Sat, Aug 31, 2013 at 5:27 PM, Igor Laskovy <span><<a href="mailto:igor.laskovy@gmail.com" target="_blank" data-mce-href="mailto:igor.laskovy@gmail.com">igor.laskovy@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex" data-mce-style="margin: 0 0 0 .8ex; border-left: 1px #ccc solid; padding-left: 1ex;"><div dir="ltr">Hello all!<div> </div><div>When I create VMs from image which located on ceph datastore, OpenNebula do full clone of that image - it takes precious time. Is it possible to tell do something like just quick snapshot and than working with it with VM?<span><span><span style="color:#888888" data-mce-style="color: #888888;"><br clear="all"> </span></span></span><div> </div><span><span><span style="color:#888888" data-mce-style="color: #888888;">-- <br></span></span></span><div dir="ltr">Igor Laskovy<br><a href="http://facebook.com/igor.laskovy" target="_blank" data-mce-href="http://facebook.com/igor.laskovy">facebook.com/igor.laskovy</a><br><div><a href="http://studiogrizzly.com" target="_blank" data-mce-href="http://studiogrizzly.com">studiogrizzly.com</a></div></div></div></div></blockquote></div><br><br clear="all"><div> </div>-- <br><div dir="ltr">Igor Laskovy<br><a href="http://facebook.com/igor.laskovy" target="_blank" data-mce-href="http://facebook.com/igor.laskovy">facebook.com/igor.laskovy</a><br><div><a href="http://studiogrizzly.com" target="_blank" data-mce-href="http://studiogrizzly.com">studiogrizzly.com</a></div></div></div><br></div></div><pre>_______________________________________________
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</span></span></pre><span class="HOEnZb"><span color="#888888" data-mce-style="color: #888888;" style="color: #888888;"> </span></span></blockquote><div><pre>-- <br>Thanks,
Kenneth</pre></div></div><br>_______________________________________________<br> Users mailing list<br> <a href="mailto:Users@lists.opennebula.org" target="_blank" data-mce-href="mailto:Users@lists.opennebula.org">Users@lists.opennebula.org</a><br> <a href="http://lists.opennebula.org/listinfo.cgi/users-opennebula.org" target="_blank" data-mce-href="http://lists.opennebula.org/listinfo.cgi/users-opennebula.org">http://lists.opennebula.org/listinfo.cgi/users-opennebula.org</a><br> <br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div dir="ltr">Igor Laskovy<br><a href="http://facebook.com/igor.laskovy" target="_blank" data-mce-href="http://facebook.com/igor.laskovy">facebook.com/igor.laskovy</a><br><div><a href="http://studiogrizzly.com" target="_blank" data-mce-href="http://studiogrizzly.com">studiogrizzly.com</a></div></div></div><br>_______________________________________________<br>Users mailing list<br>Users@lists.opennebula.org<br>http://lists.opennebula.org/listinfo.cgi/users-opennebula.org<br></div><div><br></div></div>
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