Hi,<div><br></div><div>my answers below,</div><div><br><div class="gmail_quote">On Wed, Oct 19, 2011 at 6:04 PM, Till Mossakowski <span dir="ltr"><<a href="mailto:Till.Mossakowski@dfki.de">Till.Mossakowski@dfki.de</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Hi,<br>
<br>
I have set up openstack using stackops.<br></blockquote><div><br></div><div>Good choice ;-)</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
I have installed one controller node and one compute node (each using two 1GBit NICs), following the book "Deploying Openstack".<br>
I am using nova-objectstore for storing images.<br>
<br>
Now starting a machine with a 5G image takes quite a while, probably because the image is mounted via nfs to the compute node.<br></blockquote><div><br></div><div>5GB image it's not too big... we use NFS to share instances among nodes to help with the live migration and performance it's acceptable. How much is 'quite a while' in seconds?</div>
<div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<br>
With libvirt, I am used to start VMs instantly. Is there a way to do the same with openstack? The image would need to be stored directly on the compute node, of course. Ideally, in a network with more nodes, the lots of images I have would be distributed to compute nodes in advance, and a special scheduler would select a compute node holding the needed image. Is this possible with openstack?<br>
</blockquote><div><br></div><div>If you share the /var/lib/nova/instances with NFS, during the 'launch' process the base virtual image is copied to '_base'. Depending on the size of this file it will take longer. Once it's copied next time you use this image it should go much faster. </div>
<div><br></div><div>Note: I have tested right now with a 1Gb launching a >25GB Windows VM and it took 3-4 minutes the first time. New Windows images, it took only a few seconds. </div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<br>
Best,<br>
Till<br>
<br>
-- <br>
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