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    Hello,<br>
    <br>
    For the first point, yes, you need the free space disk necessary to
    snapshot on the compute node. The process of snapshotting is in fact
    a qemu-img creation, you can easily see the process details on the
    compute node when you trigger a snapshot.<br>
    <br>
    However for the second point I don't remember right now where it's
    placed before being transfered, you'll find out easily with the
    qemu-img parameters.<br>
    <br>
    Hope it helps,<br>
    <br>
    <div class="moz-cite-prefix">Le 23/04/2015 22:00, Ross Lillie a
      écrit :<br>
    </div>
    <blockquote
cite="mid:CABmT5+6EGJBckdKGgOsz9C8DF5JuSXhKHf72QQYVGr7x-Ys1uA@mail.gmail.com"
      type="cite">
      <div dir="ltr">Hi!
        <div><br>
        </div>
        <div>I'm just trying to clarify my understanding of the image
          snapshot creation process.</div>
        <div><br>
        </div>
        <div>When snapshotting a running instance, the compute node must
          have sufficient disk space for the image to be created prior
          to uploading to Glance. Is this correct?</div>
        <div><br>
        </div>
        <div>Also, by default, during the snapshot creation on the
          compute node, where is the snapshot image being written? /tmp?
          /var/nova/instances?</div>
        <div><br>
        </div>
        <div>Thanks for your help!</div>
        <div><br>
        </div>
        <div>Regards,</div>
        <div>Ross</div>
        <div><br clear="all">
          <div><br>
          </div>
          -- <br>
          <div class="gmail_signature">
            <div dir="ltr">
              <div>
                <div dir="ltr">Ross Lillie</div>
                <div dir="ltr">Application Software & Architecture
                  Group</div>
                <div dir="ltr"><br>
                  <div><a moz-do-not-send="true"
href="https://www.google.com/calendar/embed?src=ross.lillie%40motorolasolutions.com&ctz=America/Chicago"
                      target="_blank">View my calendar</a><br>
                  </div>
                </div>
              </div>
            </div>
          </div>
        </div>
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      <br>
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      <br>
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</pre>
    </blockquote>
    <br>
    <pre class="moz-signature" cols="72">-- 
Leslie-Alexandre DENIS
Tel +33 6 83 88 34 01
Skype ladenis-dc4
BBM PIN 7F78C3BD

SIRET 800 458 663 00013</pre>
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